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| <h1 title="Package" class="title">Package org.apache.mahout.clustering.lda.cvb</h1> |
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| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CachingCVB0Mapper.html" title="class in org.apache.mahout.clustering.lda.cvb">CachingCVB0Mapper</a></td> |
| <td class="colLast"> |
| <div class="block">Run ensemble learning via loading the <a href="../../../../../../org/apache/mahout/clustering/lda/cvb/ModelTrainer.html" title="class in org.apache.mahout.clustering.lda.cvb"><code>ModelTrainer</code></a> with two <a href="../../../../../../org/apache/mahout/clustering/lda/cvb/TopicModel.html" title="class in org.apache.mahout.clustering.lda.cvb"><code>TopicModel</code></a> instances: |
| one from the previous iteration, the other empty.</div> |
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| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CachingCVB0PerplexityMapper.html" title="class in org.apache.mahout.clustering.lda.cvb">CachingCVB0PerplexityMapper</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CVB0DocInferenceMapper.html" title="class in org.apache.mahout.clustering.lda.cvb">CVB0DocInferenceMapper</a></td> |
| <td class="colLast"> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CVB0Driver.html" title="class in org.apache.mahout.clustering.lda.cvb">CVB0Driver</a></td> |
| <td class="colLast"> |
| <div class="block">See <a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CachingCVB0Mapper.html" title="class in org.apache.mahout.clustering.lda.cvb"><code>CachingCVB0Mapper</code></a> for more details on scalability and room for improvement.</div> |
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| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CVB0Driver.DualDoubleSumReducer.html" title="class in org.apache.mahout.clustering.lda.cvb">CVB0Driver.DualDoubleSumReducer</a></td> |
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| <div class="block">Sums keys and values independently.</div> |
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| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CVB0TopicTermVectorNormalizerMapper.html" title="class in org.apache.mahout.clustering.lda.cvb">CVB0TopicTermVectorNormalizerMapper</a></td> |
| <td class="colLast"> |
| <div class="block">Performs L1 normalization of input vectors.</div> |
| </td> |
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| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/InMemoryCollapsedVariationalBayes0.html" title="class in org.apache.mahout.clustering.lda.cvb">InMemoryCollapsedVariationalBayes0</a></td> |
| <td class="colLast"> |
| <div class="block">Runs the same algorithm as <a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CVB0Driver.html" title="class in org.apache.mahout.clustering.lda.cvb"><code>CVB0Driver</code></a>, but sequentially, in memory.</div> |
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| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/ModelTrainer.html" title="class in org.apache.mahout.clustering.lda.cvb">ModelTrainer</a></td> |
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| <div class="block">Multithreaded LDA model trainer class, which primarily operates by running a "map/reduce" |
| operation, all in memory locally (ie not a hadoop job!) : the "map" operation is to take |
| the "read-only" <a href="../../../../../../org/apache/mahout/clustering/lda/cvb/TopicModel.html" title="class in org.apache.mahout.clustering.lda.cvb"><code>TopicModel</code></a> and use it to iteratively learn the p(topic|term, doc) |
| distribution for documents (this can be done in parallel across many documents, as the |
| "read-only" model is, well, read-only.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/TopicModel.html" title="class in org.apache.mahout.clustering.lda.cvb">TopicModel</a></td> |
| <td class="colLast"> |
| <div class="block">Thin wrapper around a <a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/Matrix.html?is-external=true" title="class or interface in org.apache.mahout.math"><code>Matrix</code></a> of counts of occurrences of (topic, term) pairs.</div> |
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| <td class="colFirst"><a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CachingCVB0PerplexityMapper.Counters.html" title="enum in org.apache.mahout.clustering.lda.cvb">CachingCVB0PerplexityMapper.Counters</a></td> |
| <td class="colLast"> |
| <div class="block">Hadoop counters for <a href="../../../../../../org/apache/mahout/clustering/lda/cvb/CachingCVB0PerplexityMapper.html" title="class in org.apache.mahout.clustering.lda.cvb"><code>CachingCVB0PerplexityMapper</code></a>, to aid in debugging.</div> |
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