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<span class="mdl-layout-title toc">Table Of Contents</span>
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<li class="toctree-l1"><a class="reference internal" href="../../tutorials/index.html">Python Tutorials</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../../tutorials/getting-started/index.html">Getting Started</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/crash-course/index.html">Getting started with NP on MXNet</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/1-ndarray.html">Step 1: Manipulate data with NP on MXNet</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/2-nn.html">Step 2: Create a neural network</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/3-autograd.html">Step 3: Automatic differentiation with autograd</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/4-train.html">Step 4: Train the neural network</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/5-predict.html">Step 5: Predict with a pretrained model</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/6-use_gpus.html">Step 6: Use GPUs to increase efficiency</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/to-mxnet/index.html">Moving to MXNet from Other Frameworks</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/to-mxnet/pytorch.html">PyTorch vs Apache MXNet</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/gluon_from_experiment_to_deployment.html">Gluon: from experiment to deployment</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/logistic_regression_explained.html">Logistic regression explained</a></li>
<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/packages/gluon/image/mnist.html">MNIST</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../tutorials/packages/index.html">Packages</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/autograd/index.html">Automatic Differentiation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/gluon/index.html">Gluon</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/index.html">Blocks</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/custom-layer.html">Custom Layers</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/custom_layer_beginners.html">Customer Layers (Beginners)</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/hybridize.html">Hybridize</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/init.html">Initialization</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/naming.html">Parameter and Block Naming</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/nn.html">Layers and Blocks</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/parameters.html">Parameter Management</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/save_load_params.html">Saving and Loading Gluon Models</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/activations/activations.html">Activation Blocks</a></li>
</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/data/index.html">Data Tutorials</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html">Image Augmentation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html#Spatial-Augmentation">Spatial Augmentation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html#Color-Augmentation">Color Augmentation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html#Composed-Augmentations">Composed Augmentations</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html">Gluon <code class="docutils literal notranslate"><span class="pre">Dataset</span></code>s and <code class="docutils literal notranslate"><span class="pre">DataLoader</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html#Using-own-data-with-included-Datasets">Using own data with included <code class="docutils literal notranslate"><span class="pre">Dataset</span></code>s</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html#Using-own-data-with-custom-Datasets">Using own data with custom <code class="docutils literal notranslate"><span class="pre">Dataset</span></code>s</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html#Appendix:-Upgrading-from-Module-DataIter-to-Gluon-DataLoader">Appendix: Upgrading from Module <code class="docutils literal notranslate"><span class="pre">DataIter</span></code> to Gluon <code class="docutils literal notranslate"><span class="pre">DataLoader</span></code></a></li>
</ul>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/image/index.html">Image Tutorials</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/image/info_gan.html">Image similarity search with InfoGAN</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/image/mnist.html">Handwritten Digit Recognition</a></li>
</ul>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/loss/index.html">Losses</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/loss/custom-loss.html">Custom Loss Blocks</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/loss/kl_divergence.html">Kullback-Leibler (KL) Divergence</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/loss/loss.html">Loss functions</a></li>
</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/text/index.html">Text Tutorials</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/text/gnmt.html">Google Neural Machine Translation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/text/transformer.html">Machine Translation with Transformer</a></li>
</ul>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/training/index.html">Training</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/training/fit_api_tutorial.html">MXNet Gluon Fit API</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/training/trainer.html">Trainer</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/index.html">Learning Rates</a><ul>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/learning_rate_finder.html">Learning Rate Finder</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/learning_rate_schedules.html">Learning Rate Schedules</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/learning_rate_schedules_advanced.html">Advanced Learning Rate Schedules</a></li>
</ul>
</li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/training/normalization/index.html">Normalization Blocks</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/kvstore/index.html">KVStore</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/kvstore/kvstore.html">Distributed Key-Value Store</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/legacy/index.html">Legacy</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/index.html">NDArray</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/01-ndarray-intro.html">An Intro: Manipulate Data the MXNet Way with NDArray</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/02-ndarray-operations.html">NDArray Operations</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/03-ndarray-contexts.html">NDArray Contexts</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/gotchas_numpy_in_mxnet.html">Gotchas using NumPy in Apache MXNet</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/index.html">Tutorials</a><ul>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/csr.html">CSRNDArray - NDArray in Compressed Sparse Row Storage Format</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/row_sparse.html">RowSparseNDArray - NDArray for Sparse Gradient Updates</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/train_gluon.html">Sparse NDArrays with Gluon</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/np/index.html">What is NP on MXNet</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/np/cheat-sheet.html">The NP on MXNet cheat sheet</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/np/np-vs-numpy.html">Differences between NP on MXNet and NumPy</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/onnx/index.html">ONNX</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/onnx/fine_tuning_gluon.html">Fine-tuning an ONNX model</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/onnx/inference_on_onnx_model.html">Running inference on MXNet/Gluon from an ONNX model</a></li>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/deploy/export/onnx.html">Export ONNX Models</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/optimizer/index.html">Optimizers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/viz/index.html">Visualization</a><ul>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/faq/visualize_graph">Visualize networks</a></li>
</ul>
</li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="../../tutorials/performance/index.html">Performance</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/performance/compression/index.html">Compression</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/compression/int8.html">Deploy with int-8</a></li>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/faq/float16">Float16</a></li>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/faq/gradient_compression">Gradient Compression</a></li>
<li class="toctree-l4"><a class="reference external" href="https://gluon-cv.mxnet.io/build/examples_deployment/int8_inference.html">GluonCV with Quantized Models</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/performance/backend/index.html">Accelerated Backend Tools</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/mkldnn/index.html">Intel MKL-DNN</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/performance/backend/mkldnn/mkldnn_readme.html">Install MXNet with MKL-DNN</a></li>
</ul>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/tensorrt/index.html">TensorRT</a><ul class="simple">
</ul>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/tvm.html">Use TVM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/profiler.html">Profiling MXNet Models</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/amp.html">Using AMP: Automatic Mixed Precision</a></li>
</ul>
</li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="../../tutorials/deploy/index.html">Deployment</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/deploy/export/index.html">Export</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/deploy/export/onnx.html">Exporting to ONNX format</a></li>
<li class="toctree-l4"><a class="reference external" href="https://gluon-cv.mxnet.io/build/examples_deployment/export_network.html">Export Gluon CV Models</a></li>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/packages/gluon/blocks/save_load_params.html">Save / Load Parameters</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../../tutorials/deploy/inference/index.html">Inference</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/deploy/inference/cpp.html">Deploy into C++</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/deploy/inference/image_classification_jetson.html">Image Classication using pretrained ResNet-50 model on Jetson module</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../../tutorials/deploy/run-on-aws/index.html">Run on AWS</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../../tutorials/extend/index.html">Extend</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/extend/customop.html">Custom Numpy Operators</a></li>
<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/faq/new_op">New Operator Creation</a></li>
<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/faq/add_op_in_backend">New Operator in MXNet Backend</a></li>
<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/faq/using_rtc">Using RTC for CUDA kernels</a></li>
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<li class="toctree-l1 current"><a class="reference internal" href="../index.html">Python API</a><ul class="current">
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<li class="toctree-l4"><a class="reference internal" href="../np/arrays.ndarray.html">The N-dimensional array (<code class="xref py py-class docutils literal notranslate"><span class="pre">ndarray</span></code>)</a><ul>
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<li class="toctree-l4"><a class="reference internal" href="../np/arrays.indexing.html">Indexing</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../np/routines.io.html">Input and output</a><ul>
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</li>
<li class="toctree-l4"><a class="reference internal" href="../np/routines.linalg.html">Linear algebra (<code class="xref py py-mod docutils literal notranslate"><span class="pre">numpy.linalg</span></code>)</a><ul>
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<li class="toctree-l4"><a class="reference internal" href="../np/routines.math.html">Mathematical functions</a><ul>
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<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.tanh.html">mxnet.np.tanh</a></li>
<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.arcsinh.html">mxnet.np.arcsinh</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../tutorials/index.html">Python Tutorials</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../../tutorials/getting-started/index.html">Getting Started</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/crash-course/index.html">Getting started with NP on MXNet</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/1-ndarray.html">Step 1: Manipulate data with NP on MXNet</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/2-nn.html">Step 2: Create a neural network</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/3-autograd.html">Step 3: Automatic differentiation with autograd</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/4-train.html">Step 4: Train the neural network</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/5-predict.html">Step 5: Predict with a pretrained model</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/crash-course/6-use_gpus.html">Step 6: Use GPUs to increase efficiency</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/to-mxnet/index.html">Moving to MXNet from Other Frameworks</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/getting-started/to-mxnet/pytorch.html">PyTorch vs Apache MXNet</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/gluon_from_experiment_to_deployment.html">Gluon: from experiment to deployment</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/getting-started/logistic_regression_explained.html">Logistic regression explained</a></li>
<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/packages/gluon/image/mnist.html">MNIST</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../tutorials/packages/index.html">Packages</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/autograd/index.html">Automatic Differentiation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/gluon/index.html">Gluon</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/index.html">Blocks</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/custom-layer.html">Custom Layers</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/custom_layer_beginners.html">Customer Layers (Beginners)</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/hybridize.html">Hybridize</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/init.html">Initialization</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/naming.html">Parameter and Block Naming</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/nn.html">Layers and Blocks</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/parameters.html">Parameter Management</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/save_load_params.html">Saving and Loading Gluon Models</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/blocks/activations/activations.html">Activation Blocks</a></li>
</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/gluon/data/index.html">Data Tutorials</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html">Image Augmentation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html#Spatial-Augmentation">Spatial Augmentation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html#Color-Augmentation">Color Augmentation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/data_augmentation.html#Composed-Augmentations">Composed Augmentations</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html">Gluon <code class="docutils literal notranslate"><span class="pre">Dataset</span></code>s and <code class="docutils literal notranslate"><span class="pre">DataLoader</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html#Using-own-data-with-included-Datasets">Using own data with included <code class="docutils literal notranslate"><span class="pre">Dataset</span></code>s</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html#Using-own-data-with-custom-Datasets">Using own data with custom <code class="docutils literal notranslate"><span class="pre">Dataset</span></code>s</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/data/datasets.html#Appendix:-Upgrading-from-Module-DataIter-to-Gluon-DataLoader">Appendix: Upgrading from Module <code class="docutils literal notranslate"><span class="pre">DataIter</span></code> to Gluon <code class="docutils literal notranslate"><span class="pre">DataLoader</span></code></a></li>
</ul>
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<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/image/info_gan.html">Image similarity search with InfoGAN</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/image/mnist.html">Handwritten Digit Recognition</a></li>
</ul>
</li>
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<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/loss/custom-loss.html">Custom Loss Blocks</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/loss/kl_divergence.html">Kullback-Leibler (KL) Divergence</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/loss/loss.html">Loss functions</a></li>
</ul>
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<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/text/gnmt.html">Google Neural Machine Translation</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/text/transformer.html">Machine Translation with Transformer</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/training/fit_api_tutorial.html">MXNet Gluon Fit API</a></li>
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<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/learning_rate_finder.html">Learning Rate Finder</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/learning_rate_schedules.html">Learning Rate Schedules</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/gluon/training/learning_rates/learning_rate_schedules_advanced.html">Advanced Learning Rate Schedules</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/gluon/training/normalization/index.html">Normalization Blocks</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/index.html">NDArray</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/01-ndarray-intro.html">An Intro: Manipulate Data the MXNet Way with NDArray</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/02-ndarray-operations.html">NDArray Operations</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/03-ndarray-contexts.html">NDArray Contexts</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/gotchas_numpy_in_mxnet.html">Gotchas using NumPy in Apache MXNet</a></li>
<li class="toctree-l5"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/index.html">Tutorials</a><ul>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/csr.html">CSRNDArray - NDArray in Compressed Sparse Row Storage Format</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/row_sparse.html">RowSparseNDArray - NDArray for Sparse Gradient Updates</a></li>
<li class="toctree-l6"><a class="reference internal" href="../../tutorials/packages/legacy/ndarray/sparse/train_gluon.html">Sparse NDArrays with Gluon</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/np/index.html">What is NP on MXNet</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/np/cheat-sheet.html">The NP on MXNet cheat sheet</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/np/np-vs-numpy.html">Differences between NP on MXNet and NumPy</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../../tutorials/packages/onnx/index.html">ONNX</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/onnx/fine_tuning_gluon.html">Fine-tuning an ONNX model</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/packages/onnx/inference_on_onnx_model.html">Running inference on MXNet/Gluon from an ONNX model</a></li>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/deploy/export/onnx.html">Export ONNX Models</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/compression/int8.html">Deploy with int-8</a></li>
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<li class="toctree-l4"><a class="reference external" href="https://gluon-cv.mxnet.io/build/examples_deployment/int8_inference.html">GluonCV with Quantized Models</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../../tutorials/performance/backend/mkldnn/mkldnn_readme.html">Install MXNet with MKL-DNN</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/profiler.html">Profiling MXNet Models</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/performance/backend/amp.html">Using AMP: Automatic Mixed Precision</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/deploy/export/onnx.html">Exporting to ONNX format</a></li>
<li class="toctree-l4"><a class="reference external" href="https://gluon-cv.mxnet.io/build/examples_deployment/export_network.html">Export Gluon CV Models</a></li>
<li class="toctree-l4"><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/packages/gluon/blocks/save_load_params.html">Save / Load Parameters</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../../tutorials/deploy/inference/cpp.html">Deploy into C++</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../tutorials/deploy/inference/image_classification_jetson.html">Image Classication using pretrained ResNet-50 model on Jetson module</a></li>
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<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/faq/new_op">New Operator Creation</a></li>
<li class="toctree-l3"><a class="reference external" href="https://mxnet.apache.org/api/faq/add_op_in_backend">New Operator in MXNet Backend</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.ndarray.html">mxnet.np.ndarray</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.dstack.html">mxnet.np.dstack</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../np/routines.io.html">Input and output</a><ul>
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</li>
<li class="toctree-l4"><a class="reference internal" href="../np/routines.linalg.html">Linear algebra (<code class="xref py py-mod docutils literal notranslate"><span class="pre">numpy.linalg</span></code>)</a><ul>
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<li class="toctree-l4"><a class="reference internal" href="../np/routines.math.html">Mathematical functions</a><ul>
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</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="../np/random/index.html">np.random</a></li>
<li class="toctree-l4"><a class="reference internal" href="../np/routines.sort.html">Sorting, searching, and counting</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.argmax.html">mxnet.np.argmax</a></li>
<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.argmin.html">mxnet.np.argmin</a></li>
</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="../np/routines.statistics.html">Statistics</a><ul>
<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.min.html">mxnet.np.min</a></li>
<li class="toctree-l5"><a class="reference internal" href="../np/generated/mxnet.np.max.html">mxnet.np.max</a></li>
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</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../npx/index.html">NPX: NumPy Neural Network Extension</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.set_np.html">mxnet.npx.set_np</a></li>
<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.reset_np.html">mxnet.npx.reset_np</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.gpu_memory_info.html">mxnet.npx.gpu_memory_info</a></li>
<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.current_context.html">mxnet.npx.current_context</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.fully_connected.html">mxnet.npx.fully_connected</a></li>
<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.layer_norm.html">mxnet.npx.layer_norm</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.rnn.html">mxnet.npx.rnn</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.sigmoid.html">mxnet.npx.sigmoid</a></li>
<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.smooth_l1.html">mxnet.npx.smooth_l1</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.pick.html">mxnet.npx.pick</a></li>
<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.reshape_like.html">mxnet.npx.reshape_like</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../npx/generated/mxnet.npx.sequence_mask.html">mxnet.npx.sequence_mask</a></li>
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</li>
<li class="toctree-l2 current"><a class="reference internal" href="index.html">mxnet.gluon</a><ul class="current">
<li class="toctree-l3 current"><a class="current reference internal" href="#">gluon.Block</a></li>
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</li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="loss/index.html">gluon.loss</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../autograd/index.html">mxnet.autograd</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../contrib/index.html">mxnet.contrib</a><ul>
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<div class="document">
<div class="page-content" role="main">
<div class="section" id="gluon-block">
<h1>gluon.Block<a class="headerlink" href="#gluon-block" title="Permalink to this headline"></a></h1>
<dl class="class">
<dt id="mxnet.gluon.Block">
<em class="property">class </em><code class="sig-prename descclassname">mxnet.gluon.</code><code class="sig-name descname">Block</code><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
<p>Base class for all neural network layers and models. Your models should
subclass this class.</p>
<p><a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a> can be nested recursively in a tree structure. You can create and
assign child <a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a> as regular attributes:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">mxnet</span> <span class="k">as</span> <span class="nn">mx</span>
<span class="kn">from</span> <span class="nn">mxnet.gluon</span> <span class="kn">import</span> <span class="n">Block</span><span class="p">,</span> <span class="n">nn</span>
<span class="k">class</span> <span class="nc">Model</span><span class="p">(</span><span class="n">Block</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">Model</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">dense0</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Dense</span><span class="p">(</span><span class="mi">20</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">dense1</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Dense</span><span class="p">(</span><span class="mi">20</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">forward</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">):</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">mx</span><span class="o">.</span><span class="n">nd</span><span class="o">.</span><span class="n">relu</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dense0</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="k">return</span> <span class="n">mx</span><span class="o">.</span><span class="n">nd</span><span class="o">.</span><span class="n">relu</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dense1</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="n">model</span> <span class="o">=</span> <span class="n">Model</span><span class="p">()</span>
<span class="n">model</span><span class="o">.</span><span class="n">initialize</span><span class="p">(</span><span class="n">ctx</span><span class="o">=</span><span class="n">mx</span><span class="o">.</span><span class="n">cpu</span><span class="p">(</span><span class="mi">0</span><span class="p">))</span>
<span class="n">model</span><span class="p">(</span><span class="n">mx</span><span class="o">.</span><span class="n">nd</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span> <span class="n">ctx</span><span class="o">=</span><span class="n">mx</span><span class="o">.</span><span class="n">cpu</span><span class="p">(</span><span class="mi">0</span><span class="p">)))</span>
</pre></div>
</div>
<p><strong>Methods</strong></p>
<table class="longtable docutils align-default">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.apply" title="mxnet.gluon.Block.apply"><code class="xref py py-obj docutils literal notranslate"><span class="pre">apply</span></code></a>(fn)</p></td>
<td><p>Applies <code class="docutils literal notranslate"><span class="pre">fn</span></code> recursively to every child block as well as self.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.cast" title="mxnet.gluon.Block.cast"><code class="xref py py-obj docutils literal notranslate"><span class="pre">cast</span></code></a>(dtype)</p></td>
<td><p>Cast this Block to use another data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.collect_params" title="mxnet.gluon.Block.collect_params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">collect_params</span></code></a>([select])</p></td>
<td><p>Returns a <code class="xref py py-class docutils literal notranslate"><span class="pre">Dict</span></code> containing this <code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code> and all of its children’s Parameters(default), also can returns the select <code class="xref py py-class docutils literal notranslate"><span class="pre">Dict</span></code> which match some given regular expressions.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.forward" title="mxnet.gluon.Block.forward"><code class="xref py py-obj docutils literal notranslate"><span class="pre">forward</span></code></a>(*args)</p></td>
<td><p>Overrides to implement forward computation using <code class="xref py py-class docutils literal notranslate"><span class="pre">NDArray</span></code>.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.hybridize" title="mxnet.gluon.Block.hybridize"><code class="xref py py-obj docutils literal notranslate"><span class="pre">hybridize</span></code></a>([active])</p></td>
<td><p>Please refer description of HybridBlock hybridize().</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.initialize" title="mxnet.gluon.Block.initialize"><code class="xref py py-obj docutils literal notranslate"><span class="pre">initialize</span></code></a>([init, ctx, verbose, force_reinit])</p></td>
<td><p>Initializes <code class="xref py py-class docutils literal notranslate"><span class="pre">Parameter</span></code> s of this <code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code> and its children.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.load_dict" title="mxnet.gluon.Block.load_dict"><code class="xref py py-obj docutils literal notranslate"><span class="pre">load_dict</span></code></a>(param_dict[, ctx, allow_missing, …])</p></td>
<td><p>Load parameters from dict</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.load_parameters" title="mxnet.gluon.Block.load_parameters"><code class="xref py py-obj docutils literal notranslate"><span class="pre">load_parameters</span></code></a>(filename[, ctx, …])</p></td>
<td><p>Load parameters from file previously saved by <cite>save_parameters</cite>.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.register_child" title="mxnet.gluon.Block.register_child"><code class="xref py py-obj docutils literal notranslate"><span class="pre">register_child</span></code></a>(block[, name])</p></td>
<td><p>Registers block as a child of self.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.register_forward_hook" title="mxnet.gluon.Block.register_forward_hook"><code class="xref py py-obj docutils literal notranslate"><span class="pre">register_forward_hook</span></code></a>(hook)</p></td>
<td><p>Registers a forward hook on the block.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.register_forward_pre_hook" title="mxnet.gluon.Block.register_forward_pre_hook"><code class="xref py py-obj docutils literal notranslate"><span class="pre">register_forward_pre_hook</span></code></a>(hook)</p></td>
<td><p>Registers a forward pre-hook on the block.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.register_op_hook" title="mxnet.gluon.Block.register_op_hook"><code class="xref py py-obj docutils literal notranslate"><span class="pre">register_op_hook</span></code></a>(callback[, monitor_all])</p></td>
<td><p>Install callback monitor.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.reset_ctx" title="mxnet.gluon.Block.reset_ctx"><code class="xref py py-obj docutils literal notranslate"><span class="pre">reset_ctx</span></code></a>(ctx)</p></td>
<td><p>Re-assign all Parameters to other contexts.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.save_parameters" title="mxnet.gluon.Block.save_parameters"><code class="xref py py-obj docutils literal notranslate"><span class="pre">save_parameters</span></code></a>(filename[, deduplicate])</p></td>
<td><p>Save parameters to file.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.setattr" title="mxnet.gluon.Block.setattr"><code class="xref py py-obj docutils literal notranslate"><span class="pre">setattr</span></code></a>(name, value)</p></td>
<td><p>Set an attribute to a new value for all Parameters.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.share_parameters" title="mxnet.gluon.Block.share_parameters"><code class="xref py py-obj docutils literal notranslate"><span class="pre">share_parameters</span></code></a>(shared)</p></td>
<td><p>Share parameters recursively inside the model.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.summary" title="mxnet.gluon.Block.summary"><code class="xref py py-obj docutils literal notranslate"><span class="pre">summary</span></code></a>(*inputs)</p></td>
<td><p>Print the summary of the model’s output and parameters.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#mxnet.gluon.Block.zero_grad" title="mxnet.gluon.Block.zero_grad"><code class="xref py py-obj docutils literal notranslate"><span class="pre">zero_grad</span></code></a>()</p></td>
<td><p>Sets all Parameters’ gradient buffer to 0.</p></td>
</tr>
</tbody>
</table>
<p><strong>Attributes</strong></p>
<table class="longtable docutils align-default">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#mxnet.gluon.Block.params" title="mxnet.gluon.Block.params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">params</span></code></a></p></td>
<td><p>Returns this <code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code>’s parameter dictionary (does not include its children’s parameters).</p></td>
</tr>
</tbody>
</table>
<p>Child <a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a> assigned this way will be registered and <a class="reference internal" href="#mxnet.gluon.Block.collect_params" title="mxnet.gluon.Block.collect_params"><code class="xref py py-meth docutils literal notranslate"><span class="pre">collect_params()</span></code></a>
will collect their Parameters recursively. You can also manually register
child blocks with <a class="reference internal" href="#mxnet.gluon.Block.register_child" title="mxnet.gluon.Block.register_child"><code class="xref py py-meth docutils literal notranslate"><span class="pre">register_child()</span></code></a>.</p>
<dl class="method">
<dt id="mxnet.gluon.Block.apply">
<code class="sig-name descname">apply</code><span class="sig-paren">(</span><em class="sig-param">fn</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.apply"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.apply" title="Permalink to this definition"></a></dt>
<dd><p>Applies <code class="docutils literal notranslate"><span class="pre">fn</span></code> recursively to every child block as well as self.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>fn</strong> (<em>callable</em>) – Function to be applied to each submodule, of form <cite>fn(block)</cite>.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p></p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p>this block</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.cast">
<code class="sig-name descname">cast</code><span class="sig-paren">(</span><em class="sig-param">dtype</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.cast"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.cast" title="Permalink to this definition"></a></dt>
<dd><p>Cast this Block to use another data type.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>dtype</strong> (<em>str</em><em> or </em><em>numpy.dtype</em>) – The new data type.</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.collect_params">
<code class="sig-name descname">collect_params</code><span class="sig-paren">(</span><em class="sig-param">select=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.collect_params"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.collect_params" title="Permalink to this definition"></a></dt>
<dd><p>Returns a <code class="xref py py-class docutils literal notranslate"><span class="pre">Dict</span></code> containing this <a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a> and all of its
children’s Parameters(default), also can returns the select <code class="xref py py-class docutils literal notranslate"><span class="pre">Dict</span></code>
which match some given regular expressions.</p>
<p>For example, collect the specified parameters in [‘conv1.weight’, ‘conv1.bias’, ‘fc.weight’,
‘fc.bias’]:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">model</span><span class="o">.</span><span class="n">collect_params</span><span class="p">(</span><span class="s1">&#39;conv1.weight|conv1.bias|fc.weight|fc.bias&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>or collect all parameters whose names end with ‘weight’ or ‘bias’, this can be done
using regular expressions:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">model</span><span class="o">.</span><span class="n">collect_params</span><span class="p">(</span><span class="s1">&#39;.*weight|.*bias&#39;</span><span class="p">)</span>
</pre></div>
</div>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>select</strong> (<em>str</em>) – regular expressions</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p></p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p>The selected <code class="xref py py-class docutils literal notranslate"><span class="pre">Dict</span></code></p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.forward">
<code class="sig-name descname">forward</code><span class="sig-paren">(</span><em class="sig-param">*args</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.forward"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.forward" title="Permalink to this definition"></a></dt>
<dd><p>Overrides to implement forward computation using <code class="xref py py-class docutils literal notranslate"><span class="pre">NDArray</span></code>. Only
accepts positional arguments.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>*args</strong> (<em>list of NDArray</em>) – Input tensors.</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.hybridize">
<code class="sig-name descname">hybridize</code><span class="sig-paren">(</span><em class="sig-param">active=True</em>, <em class="sig-param">**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.hybridize"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.hybridize" title="Permalink to this definition"></a></dt>
<dd><p>Please refer description of HybridBlock hybridize().</p>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.initialize">
<code class="sig-name descname">initialize</code><span class="sig-paren">(</span><em class="sig-param">init=&lt;mxnet.initializer.Uniform object&gt;</em>, <em class="sig-param">ctx=None</em>, <em class="sig-param">verbose=False</em>, <em class="sig-param">force_reinit=False</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.initialize"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.initialize" title="Permalink to this definition"></a></dt>
<dd><p>Initializes <a class="reference internal" href="parameter.html#mxnet.gluon.Parameter" title="mxnet.gluon.Parameter"><code class="xref py py-class docutils literal notranslate"><span class="pre">Parameter</span></code></a> s of this <a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a> and its children.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>init</strong> (<a class="reference internal" href="../initializer/index.html#mxnet.initializer.Initializer" title="mxnet.initializer.Initializer"><em>Initializer</em></a>) – Global default Initializer to be used when <code class="xref py py-meth docutils literal notranslate"><span class="pre">Parameter.init()</span></code> is <code class="docutils literal notranslate"><span class="pre">None</span></code>.
Otherwise, <code class="xref py py-meth docutils literal notranslate"><span class="pre">Parameter.init()</span></code> takes precedence.</p></li>
<li><p><strong>ctx</strong> (<a class="reference internal" href="../context/index.html#mxnet.context.Context" title="mxnet.context.Context"><em>Context</em></a><em> or </em><em>list of Context</em>) – Keeps a copy of Parameters on one or many context(s).</p></li>
<li><p><strong>verbose</strong> (<em>bool</em><em>, </em><em>default False</em>) – Whether to verbosely print out details on initialization.</p></li>
<li><p><strong>force_reinit</strong> (<em>bool</em><em>, </em><em>default False</em>) – Whether to force re-initialization if parameter is already initialized.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.load_dict">
<code class="sig-name descname">load_dict</code><span class="sig-paren">(</span><em class="sig-param">param_dict</em>, <em class="sig-param">ctx=None</em>, <em class="sig-param">allow_missing=False</em>, <em class="sig-param">ignore_extra=False</em>, <em class="sig-param">cast_dtype=False</em>, <em class="sig-param">dtype_source='current'</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.load_dict"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.load_dict" title="Permalink to this definition"></a></dt>
<dd><p>Load parameters from dict</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>param_dict</strong> (<em>dict</em>) – Dictionary containing model parameters</p></li>
<li><p><strong>ctx</strong> (<a class="reference internal" href="../context/index.html#mxnet.context.Context" title="mxnet.context.Context"><em>Context</em></a><em> or </em><em>list of Context</em>) – Context(s) initialize loaded parameters on.</p></li>
<li><p><strong>allow_missing</strong> (<em>bool</em><em>, </em><em>default False</em>) – Whether to silently skip loading parameters not represented in the file.</p></li>
<li><p><strong>ignore_extra</strong> (<em>bool</em><em>, </em><em>default False</em>) – Whether to silently ignore parameters from the file that are not
present in this dict.</p></li>
<li><p><strong>cast_dtype</strong> (<em>bool</em><em>, </em><em>default False</em>) – Cast the data type of the NDArray loaded from the checkpoint to the dtype
provided by the Parameter if any</p></li>
<li><p><strong>dtype_source</strong> (<em>str</em><em>, </em><em>default 'current'</em>) – must be in {‘current’, ‘saved’}
Only valid if cast_dtype=True, specify the source of the dtype for casting
the parameters</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.load_parameters">
<code class="sig-name descname">load_parameters</code><span class="sig-paren">(</span><em class="sig-param">filename</em>, <em class="sig-param">ctx=None</em>, <em class="sig-param">allow_missing=False</em>, <em class="sig-param">ignore_extra=False</em>, <em class="sig-param">cast_dtype=False</em>, <em class="sig-param">dtype_source='current'</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.load_parameters"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.load_parameters" title="Permalink to this definition"></a></dt>
<dd><p>Load parameters from file previously saved by <cite>save_parameters</cite>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>filename</strong> (<em>str</em>) – Path to parameter file.</p></li>
<li><p><strong>ctx</strong> (<a class="reference internal" href="../context/index.html#mxnet.context.Context" title="mxnet.context.Context"><em>Context</em></a><em> or </em><em>list of Context</em><em>, </em><em>default cpu</em><em>(</em><em>)</em>) – Context(s) to initialize loaded parameters on.</p></li>
<li><p><strong>allow_missing</strong> (<em>bool</em><em>, </em><em>default False</em>) – Whether to silently skip loading parameters not represents in the file.</p></li>
<li><p><strong>ignore_extra</strong> (<em>bool</em><em>, </em><em>default False</em>) – Whether to silently ignore parameters from the file that are not
present in this Block.</p></li>
<li><p><strong>cast_dtype</strong> (<em>bool</em><em>, </em><em>default False</em>) – Cast the data type of the NDArray loaded from the checkpoint to the dtype
provided by the Parameter if any.</p></li>
<li><p><strong>dtype_source</strong> (<em>str</em><em>, </em><em>default 'current'</em>) – must be in {‘current’, ‘saved’}
Only valid if cast_dtype=True, specify the source of the dtype for casting
the parameters</p></li>
</ul>
</dd>
</dl>
<p class="rubric">References</p>
<p><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/packages/gluon/blocks/save_load_params.html">Saving and Loading Gluon Models</a></p>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.params">
<em class="property">property </em><code class="sig-name descname">params</code><a class="headerlink" href="#mxnet.gluon.Block.params" title="Permalink to this definition"></a></dt>
<dd><p>Returns this <a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a>’s parameter dictionary (does not include its
children’s parameters).</p>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.register_child">
<code class="sig-name descname">register_child</code><span class="sig-paren">(</span><em class="sig-param">block</em>, <em class="sig-param">name=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.register_child"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.register_child" title="Permalink to this definition"></a></dt>
<dd><p>Registers block as a child of self. <a class="reference internal" href="#mxnet.gluon.Block" title="mxnet.gluon.Block"><code class="xref py py-class docutils literal notranslate"><span class="pre">Block</span></code></a> s assigned to self as
attributes will be registered automatically.</p>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.register_forward_hook">
<code class="sig-name descname">register_forward_hook</code><span class="sig-paren">(</span><em class="sig-param">hook</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.register_forward_hook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.register_forward_hook" title="Permalink to this definition"></a></dt>
<dd><p>Registers a forward hook on the block.</p>
<p>The hook function is called immediately after <a class="reference internal" href="#mxnet.gluon.Block.forward" title="mxnet.gluon.Block.forward"><code class="xref py py-func docutils literal notranslate"><span class="pre">forward()</span></code></a>.
It should not modify the input or output.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>hook</strong> (<em>callable</em>) – The forward hook function of form <cite>hook(block, input, output) -&gt; None</cite>.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p></p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><code class="xref py py-class docutils literal notranslate"><span class="pre">mxnet.gluon.utils.HookHandle</span></code></p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.register_forward_pre_hook">
<code class="sig-name descname">register_forward_pre_hook</code><span class="sig-paren">(</span><em class="sig-param">hook</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.register_forward_pre_hook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.register_forward_pre_hook" title="Permalink to this definition"></a></dt>
<dd><p>Registers a forward pre-hook on the block.</p>
<p>The hook function is called immediately before <a class="reference internal" href="#mxnet.gluon.Block.forward" title="mxnet.gluon.Block.forward"><code class="xref py py-func docutils literal notranslate"><span class="pre">forward()</span></code></a>.
It should not modify the input or output.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>hook</strong> (<em>callable</em>) – The forward hook function of form <cite>hook(block, input) -&gt; None</cite>.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p></p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><code class="xref py py-class docutils literal notranslate"><span class="pre">mxnet.gluon.utils.HookHandle</span></code></p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.register_op_hook">
<code class="sig-name descname">register_op_hook</code><span class="sig-paren">(</span><em class="sig-param">callback</em>, <em class="sig-param">monitor_all=False</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.register_op_hook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.register_op_hook" title="Permalink to this definition"></a></dt>
<dd><p>Install callback monitor.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>callback</strong> (<em>function</em>) – Function called to inspect the values of the intermediate outputs
of blocks after hybridization. It takes 3 parameters:
name of the tensor being inspected (str)
name of the operator producing or consuming that tensor (str)
tensor being inspected (NDArray).</p></li>
<li><p><strong>monitor_all</strong> (<em>bool</em><em>, </em><em>default False</em>) – If True, monitor both input and output, otherwise monitor output only.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.reset_ctx">
<code class="sig-name descname">reset_ctx</code><span class="sig-paren">(</span><em class="sig-param">ctx</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.reset_ctx"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.reset_ctx" title="Permalink to this definition"></a></dt>
<dd><p>Re-assign all Parameters to other contexts.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>ctx</strong> (Context or list of Context, default <code class="xref py py-meth docutils literal notranslate"><span class="pre">context.current_context()</span></code>.) – Assign Parameter to given context. If ctx is a list of Context, a
copy will be made for each context.</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.save_parameters">
<code class="sig-name descname">save_parameters</code><span class="sig-paren">(</span><em class="sig-param">filename</em>, <em class="sig-param">deduplicate=False</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.save_parameters"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.save_parameters" title="Permalink to this definition"></a></dt>
<dd><p>Save parameters to file.</p>
<p>Saved parameters can only be loaded with <cite>load_parameters</cite>. Note that this
method only saves parameters, not model structure. If you want to save
model structures, please use <a class="reference internal" href="hybrid_block.html#mxnet.gluon.HybridBlock.export" title="mxnet.gluon.HybridBlock.export"><code class="xref py py-meth docutils literal notranslate"><span class="pre">HybridBlock.export()</span></code></a>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>filename</strong> (<em>str</em>) – Path to file.</p></li>
<li><p><strong>deduplicate</strong> (<em>bool</em><em>, </em><em>default False</em>) – If True, save shared parameters only once. Otherwise, if a Block
contains multiple sub-blocks that share parameters, each of the
shared parameters will be separately saved for every sub-block.</p></li>
</ul>
</dd>
</dl>
<p class="rubric">References</p>
<p><a class="reference external" href="https://mxnet.apache.org/api/python/docs/tutorials/packages/gluon/blocks/save_load_params.html">Saving and Loading Gluon Models</a></p>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.setattr">
<code class="sig-name descname">setattr</code><span class="sig-paren">(</span><em class="sig-param">name</em>, <em class="sig-param">value</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.setattr"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.setattr" title="Permalink to this definition"></a></dt>
<dd><p>Set an attribute to a new value for all Parameters.</p>
<p>For example, set grad_req to null if you don’t need gradient w.r.t a
model’s Parameters:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">model</span><span class="o">.</span><span class="n">setattr</span><span class="p">(</span><span class="s1">&#39;grad_req&#39;</span><span class="p">,</span> <span class="s1">&#39;null&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>or change the learning rate multiplier:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">model</span><span class="o">.</span><span class="n">setattr</span><span class="p">(</span><span class="s1">&#39;lr_mult&#39;</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
</pre></div>
</div>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>name</strong> (<em>str</em>) – Name of the attribute.</p></li>
<li><p><strong>value</strong> (<em>valid type for attribute name</em>) – The new value for the attribute.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.share_parameters">
<code class="sig-name descname">share_parameters</code><span class="sig-paren">(</span><em class="sig-param">shared</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.share_parameters"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.share_parameters" title="Permalink to this definition"></a></dt>
<dd><p>Share parameters recursively inside the model.</p>
<p>For example, if you want <code class="docutils literal notranslate"><span class="pre">dense1</span></code> to share <code class="docutils literal notranslate"><span class="pre">dense0</span></code>’s weights, you can do:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">dense0</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Dense</span><span class="p">(</span><span class="mi">20</span><span class="p">)</span>
<span class="n">dense1</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Dense</span><span class="p">(</span><span class="mi">20</span><span class="p">)</span>
<span class="n">dense1</span><span class="o">.</span><span class="n">share_parameters</span><span class="p">(</span><span class="n">dense0</span><span class="o">.</span><span class="n">collect_params</span><span class="p">())</span>
</pre></div>
</div>
<dl class="simple">
<dt>which equals to</dt><dd><p>dense1.weight = dense0.weight
dense1.bias = dense0.bias</p>
</dd>
</dl>
<p>Note that unlike the <cite>load_parameters</cite> or <cite>load_dict</cite> functions,
<cite>share_parameters</cite> results in the <cite>Parameter</cite> object being shared (or
tied) between the models, whereas <cite>load_parameters</cite> or <cite>load_dict</cite> only
set the value of the data dictionary of a model. If you call
<cite>load_parameters</cite> or <cite>load_dict</cite> after <cite>share_parameters</cite>, the loaded
value will be reflected in all networks that use the shared (or tied)
<cite>Parameter</cite> object.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>shared</strong> (<em>Dict</em>) – Dict of the shared parameters.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p></p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p>this block</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.summary">
<code class="sig-name descname">summary</code><span class="sig-paren">(</span><em class="sig-param">*inputs</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.summary"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.summary" title="Permalink to this definition"></a></dt>
<dd><p>Print the summary of the model’s output and parameters.</p>
<p>The network must have been initialized, and must not have been hybridized.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>inputs</strong> (<em>object</em>) – Any input that the model supports. For any tensor in the input, only
<a class="reference internal" href="../legacy/ndarray/ndarray.html#mxnet.ndarray.NDArray" title="mxnet.ndarray.NDArray"><code class="xref py py-class docutils literal notranslate"><span class="pre">mxnet.ndarray.NDArray</span></code></a> is supported.</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="mxnet.gluon.Block.zero_grad">
<code class="sig-name descname">zero_grad</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/mxnet/gluon/block.html#Block.zero_grad"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#mxnet.gluon.Block.zero_grad" title="Permalink to this definition"></a></dt>
<dd><p>Sets all Parameters’ gradient buffer to 0.</p>
</dd></dl>
</dd></dl>
</div>
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