<p>Still lack a meaningful unit test, up until now I only compare the results with the one shown at this website(<a href="http://deeplearning.stanford.edu/wiki/index.php/Visualizing_a_Trained_Autoencoder">http://deeplearning.stanford.edu/wiki/index.php/Visualizing_a_Trained_Autoencoder</a>).</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>&nbsp;&nbsp;<a href='https://github.com/mlpack/mlpack/pull/465'>https://github.com/mlpack/mlpack/pull/465</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>first commit</li>
  <li>add example</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/mlpack/mlpack/pull/465/files#diff-0">src/mlpack/methods/sparse_autoencoder/CMakeLists.txt</a>
    (2)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/mlpack/mlpack/pull/465/files#diff-1">src/mlpack/methods/sparse_autoencoder/maximal_inputs.cpp</a>
    (83)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/mlpack/mlpack/pull/465/files#diff-2">src/mlpack/methods/sparse_autoencoder/maximal_inputs.hpp</a>
    (38)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/mlpack/mlpack/pull/465.patch'>https://github.com/mlpack/mlpack/pull/465.patch</a></li>
  <li><a href='https://github.com/mlpack/mlpack/pull/465.diff'>https://github.com/mlpack/mlpack/pull/465.diff</a></li>
</ul>

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