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<h1>Image Classification using Residual Networks<a class="headerlink" href="#image-classification-using-residual-networks" title="Permalink to this headline"></a></h1>
<p>In this example, we convert Residual Networks trained on <a class="reference external" href="https://github.com/facebook/fb.resnet.torch">Torch</a> to SINGA for image classification. Tested on [SINGA commit] with the <a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-18.tar.gz">parameters pretrained by Torch</a></p>
<div class="section" id="instructions">
<h2>Instructions<a class="headerlink" href="#instructions" title="Permalink to this headline"></a></h2>
<ul>
<li><p class="first">Download one parameter checkpoint file (see below) and the synset word file of ImageNet into this folder, e.g.,</p>
<div class="highlight-default"><div class="highlight"><pre><span></span> $ wget https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-18.tar.gz
$ wget https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/synset_words.txt
$ tar xvf resnet-18.tar.gz
</pre></div>
</div>
</li>
<li><p class="first">Usage</p>
<div class="highlight-default"><div class="highlight"><pre><span></span> $ python serve.py -h
</pre></div>
</div>
</li>
<li><p class="first">Example</p>
<div class="highlight-default"><div class="highlight"><pre><span></span> # use cpu
$ python serve.py --use_cpu --parameter_file resnet-18.pickle --model resnet --depth 18 &amp;
# use gpu
$ python serve.py --parameter_file resnet-18.pickle --model resnet --depth 18 &amp;
</pre></div>
</div>
<p>The parameter files for the following model and depth configuration pairs are provided:</p>
<ul class="simple">
<li>resnet (original resnet), <a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-18.tar.gz">18</a>|<a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-34.tar.gz">34</a>|<a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-101.tar.gz">101</a>|<a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-152.tar.gz">152</a></li>
<li>addbn (resnet with a batch normalization layer after the addition), <a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-50.tar.gz">50</a></li>
<li>wrn (wide resnet), <a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/wrn-50-2.tar.gz">50</a></li>
<li>preact (resnet with pre-activation) <a class="reference external" href="https://s3-ap-southeast-1.amazonaws.com/dlfile/resnet/resnet-200.tar.gz">200</a></li>
</ul>
</li>
<li><p class="first">Submit images for classification</p>
<div class="highlight-default"><div class="highlight"><pre><span></span> $ curl -i -F image=@image1.jpg http://localhost:9999/api
$ curl -i -F image=@image2.jpg http://localhost:9999/api
$ curl -i -F image=@image3.jpg http://localhost:9999/api
</pre></div>
</div>
</li>
</ul>
<p>image1.jpg, image2.jpg and image3.jpg should be downloaded before executing the above commands.</p>
</div>
<div class="section" id="details">
<h2>Details<a class="headerlink" href="#details" title="Permalink to this headline"></a></h2>
<p>The parameter files were extracted from the original <a class="reference external" href="https://github.com/facebook/fb.resnet.torch/tree/master/pretrained">torch files</a> via
the convert.py program.</p>
<p>Usage:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>$ python convert.py -h
</pre></div>
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