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<a href="channel__unpool_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#ifndef MSHADOW_EXTENSION_CHANNEL_UNPOOL_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#define MSHADOW_EXTENSION_CHANNEL_UNPOOL_H_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;../extension.h&quot;</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacemshadow.html">mshadow</a> {</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="keyword">namespace </span>expr {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Reducer, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType, <span class="keywordtype">int</span> srcdim&gt;</div><div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html"> 22</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">ChannelUnpoolingExp</a>:</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keyword">public</span> <a class="code" href="structmshadow_1_1expr_1_1MakeTensorExp.html">MakeTensorExp</a>&lt;ChannelUnpoolingExp&lt;Reducer, SrcExp, DType, srcdim&gt;,</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; SrcExp, srcdim, DType&gt; {</div><div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293"> 26</a></span>&#160; <span class="keyword">const</span> SrcExp &amp;<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293">data_src_</a>;</div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80"> 28</a></span>&#160; <span class="keyword">const</span> SrcExp &amp;<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80">data_pooled_</a>;</div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868"> 30</a></span>&#160; <span class="keyword">const</span> SrcExp &amp;<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868">grad_pooled_</a>;</div><div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719"> 32</a></span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">pchannel_</a>;</div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a2d6b590023907446b641c28ed295b4ae"> 34</a></span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a2d6b590023907446b641c28ed295b4ae">nsize_</a>;</div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#af66ac21d72443adc489d003f6a8ef162"> 36</a></span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#af66ac21d72443adc489d003f6a8ef162">kstride_</a>;</div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5"> 38</a></span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a>;</div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ac4ac35925752a01cfb2daa69987f390b"> 40</a></span>&#160; <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ac4ac35925752a01cfb2daa69987f390b">ChannelUnpoolingExp</a>(<span class="keyword">const</span> SrcExp &amp;data_src,</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">const</span> SrcExp &amp;data_pooled,</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keyword">const</span> SrcExp &amp;grad_pooled,</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> nsize, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> kstride, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="namespacemshadow_1_1expr.html#a97c45c821ac8275dd75fa585f47b9e00">pad</a>)</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; : data_src_(data_src), data_pooled_(data_pooled),</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; grad_pooled_(grad_pooled),</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; nsize_(nsize), kstride_(kstride), pad_(pad) {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <a class="code" href="structmshadow_1_1Shape.html">Shape&lt;srcdim&gt;</a> pshape = <a class="code" href="structmshadow_1_1expr_1_1ShapeCheck.html#af44e6a3b97cf3b245bc1b7ad4cacb306">ShapeCheck&lt;srcdim, SrcExp&gt;::Check</a>(grad_pooled);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keyword">typedef</span> <a class="code" href="structmshadow_1_1expr_1_1ShapeCheck.html">ShapeCheck&lt;srcdim, SrcExp&gt;</a> ShapeCheckSrcDimSrcExp;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; CHECK_EQ(pshape, ShapeCheckSrcDimSrcExp::Check(data_pooled))</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; &lt;&lt; <span class="stringliteral">&quot;ChannelUnPoolingExp: data and grad shape mismatch&quot;</span>;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <a class="code" href="structmshadow_1_1Shape.html">Shape&lt;srcdim&gt;</a> sshape = <a class="code" href="structmshadow_1_1expr_1_1ShapeCheck.html#af44e6a3b97cf3b245bc1b7ad4cacb306">ShapeCheck&lt;srcdim, SrcExp&gt;::Check</a>(data_src);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k &lt; srcdim; ++k) {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">if</span> (k == 1) {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; }</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; CHECK_EQ(pshape[k], sshape[k])</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; &lt;&lt; <span class="stringliteral">&quot;ChannelUnPoolingExp: pooled tensor and src tensor shape mismatch&quot;</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; &lt;&lt; pshape[k]</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; &lt;&lt; <span class="stringliteral">&quot; vs &quot;</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; &lt;&lt; sshape[k];</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; pchannel_ = pshape[1];</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; this-&gt;<a class="code" href="structmshadow_1_1expr_1_1MakeTensorExp.html#a2a2f9b6b828035ea38bfb8620db42a82">shape_</a> = sshape;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;};</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Reducer, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType, <span class="keywordtype">int</span> etype&gt;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<span class="keyword">inline</span> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">ChannelUnpoolingExp&lt;Reducer, SrcExp, DType, ExpInfo&lt;SrcExp&gt;::kDim</a>&gt;</div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="namespacemshadow_1_1expr.html#a76f288226b4f3d46fa611099c4d790d3"> 80</a></span>&#160;<a class="code" href="namespacemshadow_1_1expr.html#a76f288226b4f3d46fa611099c4d790d3">ch_unpool</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, etype&gt;</a> &amp;data_src,</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, etype&gt;</a> &amp;data_pooled,</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, etype&gt;</a> &amp;grad_pooled,</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> nsize, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> stride, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="namespacemshadow_1_1expr.html#a97c45c821ac8275dd75fa585f47b9e00">pad</a>) {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="structmshadow_1_1expr_1_1TypeCheckPass.html">TypeCheckPass&lt;ExpInfo&lt;SrcExp&gt;::kDim</a> &gt;= 3&gt;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; ::Error_Expression_Does_Not_Meet_Dimension_Req();</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">ChannelUnpoolingExp&lt;Reducer, SrcExp, DType, ExpInfo&lt;SrcExp&gt;::kDim</a>&gt;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; (data_src.<a class="code" href="structmshadow_1_1expr_1_1Exp.html#a99e5454eca73df87ecf8b66d3b3470f5">self</a>(), data_pooled.<a class="code" href="structmshadow_1_1expr_1_1Exp.html#a99e5454eca73df87ecf8b66d3b3470f5">self</a>(), grad_pooled.<a class="code" href="structmshadow_1_1expr_1_1Exp.html#a99e5454eca73df87ecf8b66d3b3470f5">self</a>(), nsize, stride, <a class="code" href="namespacemshadow_1_1expr.html#a97c45c821ac8275dd75fa585f47b9e00">pad</a>);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;}</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Reducer, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType, <span class="keywordtype">int</span> etype&gt;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<span class="keyword">inline</span> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">ChannelUnpoolingExp&lt;Reducer, SrcExp, DType, ExpInfo&lt;SrcExp&gt;::kDim</a>&gt;</div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="namespacemshadow_1_1expr.html#a7cce7b82e8e57dc7aa174e85b0f20caf"> 92</a></span>&#160;<a class="code" href="namespacemshadow_1_1expr.html#a76f288226b4f3d46fa611099c4d790d3">ch_unpool</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, etype&gt;</a> &amp;data_src,</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, etype&gt;</a> &amp;data_pooled,</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, etype&gt;</a> &amp;grad_pooled, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> nsize) {</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespacemshadow_1_1expr.html#a76f288226b4f3d46fa611099c4d790d3">ch_unpool</a>(data_src, data_pooled, grad_pooled, nsize, 1, nsize / 2);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;}</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;<span class="comment">//----------------------</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<span class="comment">// Execution plan</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="comment">//----------------------</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Reducer, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType, <span class="keywordtype">int</span> srcdim&gt;</div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html"> 103</a></span>&#160;<span class="keyword">struct </span><a class="code" href="classmshadow_1_1expr_1_1Plan.html">Plan</a>&lt;<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">ChannelUnpoolingExp</a>&lt;Reducer, SrcExp, DType, srcdim&gt;, DType&gt; {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html#a4065a6d7c9a59bd0b1b8d307ed727118"> 105</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html#a4065a6d7c9a59bd0b1b8d307ed727118">Plan</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">ChannelUnpoolingExp&lt;Reducer, SrcExp, DType, srcdim&gt;</a> &amp;e)</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; : <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293">data_src_</a>(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293">data_src_</a>), <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80">data_pooled_</a>(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80">data_pooled_</a>),</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868">grad_pooled_</a>(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868">grad_pooled_</a>), channel_(e.<a class="code" href="structmshadow_1_1expr_1_1MakeTensorExp.html#a2a2f9b6b828035ea38bfb8620db42a82">shape_</a>[srcdim - 3]),</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; height_(e.<a class="code" href="structmshadow_1_1expr_1_1MakeTensorExp.html#a2a2f9b6b828035ea38bfb8620db42a82">shape_</a>[srcdim - 2]), <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">pchannel_</a>(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">pchannel_</a>),</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; hnsize_(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a2d6b590023907446b641c28ed295b4ae">nsize_</a>), stride_(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#af66ac21d72443adc489d003f6a8ef162">kstride_</a>), <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a>(e.<a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a>) {}</div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html#a2451dc9e4573ae139d2596d5ed75df20"> 110</a></span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> DType <a class="code" href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html#a2451dc9e4573ae139d2596d5ed75df20">Eval</a>(<a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> i, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> j)<span class="keyword"> const </span>{</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keyword">const</span> DType vsrc = <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293">data_src_</a>.Eval(i, j);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> y = i % height_;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; i /= height_;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> c = i % channel_;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> n = i / channel_;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> x = j;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> cstart = c &lt; hnsize_ - <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a> ? 0</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; : (c - (hnsize_ - <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a>) + stride_) / stride_;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> cend = min((c + <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a> + stride_) / stride_, channel_);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; DType val = <span class="keyword">static_cast&lt;</span>DType<span class="keyword">&gt;</span>(0);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> cc = cstart; cc &lt; cend; ++cc) {</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; val += Reducer::PartialGrad(vsrc,</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80">data_pooled_</a>.Eval((n * <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">pchannel_</a> + cc) * height_ + y, x)) *</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868">grad_pooled_</a>.Eval((n * <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">pchannel_</a> + cc) * height_ + y, x);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">return</span> val;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <a class="code" href="classmshadow_1_1expr_1_1Plan.html">Plan&lt;SrcExp, DType&gt;</a> <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293">data_src_</a>, <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80">data_pooled_</a>, <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868">grad_pooled_</a>;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> channel_, height_, <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">pchannel_</a>, hnsize_, stride_, <a class="code" href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">pad_</a>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;};</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;} <span class="comment">// namespace expr</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;} <span class="comment">// namespace mshadow</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;<span class="preprocessor">#endif // MSHADOW_EXTENSION_CHANNEL_UNPOOL_H_</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div><div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_a77e7cd0ef8a6383263b577e54c219868"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a77e7cd0ef8a6383263b577e54c219868">mshadow::expr::ChannelUnpoolingExp::grad_pooled_</a></div><div class="ttdeci">const SrcExp &amp; grad_pooled_</div><div class="ttdoc">gradient data of pooled part, to be propgate down </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:30</div></div>
<div class="ttc" id="namespacemshadow_1_1expr_html_a97c45c821ac8275dd75fa585f47b9e00"><div class="ttname"><a href="namespacemshadow_1_1expr.html#a97c45c821ac8275dd75fa585f47b9e00">mshadow::expr::pad</a></div><div class="ttdeci">PaddingExp&lt; SrcExp, DType, ExpInfo&lt; SrcExp &gt;::kDim &gt; pad(const Exp&lt; SrcExp, DType, etype &gt; &amp;src, index_t pad)</div><div class="ttdoc">padding expression, pad a image with zeros on boundaries, padding affects shape[0], and shape[1] </div><div class="ttdef"><b>Definition:</b> pad.h:53</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_ae0fdce155fd5203e7a1525d504e828b5"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ae0fdce155fd5203e7a1525d504e828b5">mshadow::expr::ChannelUnpoolingExp::pad_</a></div><div class="ttdeci">index_t pad_</div><div class="ttdoc">pad </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:38</div></div>
<div class="ttc" id="classmshadow_1_1expr_1_1Plan_html"><div class="ttname"><a href="classmshadow_1_1expr_1_1Plan.html">mshadow::expr::Plan</a></div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:40</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1TypeCheckPass_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1TypeCheckPass.html">mshadow::expr::TypeCheckPass</a></div><div class="ttdoc">used to help static type check </div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:312</div></div>
<div class="ttc" id="structmshadow_1_1Shape_html"><div class="ttname"><a href="structmshadow_1_1Shape.html">mshadow::Shape&lt; srcdim &gt;</a></div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_a2d6b590023907446b641c28ed295b4ae"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a2d6b590023907446b641c28ed295b4ae">mshadow::expr::ChannelUnpoolingExp::nsize_</a></div><div class="ttdeci">index_t nsize_</div><div class="ttdoc">kernel size in height </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:34</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_ab8961540cb74b44726d96de176ba9d80"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ab8961540cb74b44726d96de176ba9d80">mshadow::expr::ChannelUnpoolingExp::data_pooled_</a></div><div class="ttdeci">const SrcExp &amp; data_pooled_</div><div class="ttdoc">result of pooled data, corresponds to result of pooling </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:28</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_ac4ac35925752a01cfb2daa69987f390b"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#ac4ac35925752a01cfb2daa69987f390b">mshadow::expr::ChannelUnpoolingExp::ChannelUnpoolingExp</a></div><div class="ttdeci">ChannelUnpoolingExp(const SrcExp &amp;data_src, const SrcExp &amp;data_pooled, const SrcExp &amp;grad_pooled, index_t nsize, index_t kstride, index_t pad)</div><div class="ttdoc">constructor </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:40</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html">mshadow::expr::ChannelUnpoolingExp</a></div><div class="ttdoc">channel pooling expression, do reduction over (local nearby) channels, used to implement local respon...</div><div class="ttdef"><b>Definition:</b> channel_unpool.h:22</div></div>
<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdef"><b>Definition:</b> optional.h:241</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ShapeCheck_html_af44e6a3b97cf3b245bc1b7ad4cacb306"><div class="ttname"><a href="structmshadow_1_1expr_1_1ShapeCheck.html#af44e6a3b97cf3b245bc1b7ad4cacb306">mshadow::expr::ShapeCheck::Check</a></div><div class="ttdeci">static Shape&lt; dim &gt; Check(const E &amp;t)</div></div>
<div class="ttc" id="3rdparty_2mshadow_2mshadow_2base_8h_html_af205b8ab4d8733133d590df7d2639d69"><div class="ttname"><a href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a></div><div class="ttdeci">#define MSHADOW_XINLINE</div><div class="ttdef"><b>Definition:</b> base.h:204</div></div>
<div class="ttc" id="namespacemshadow_html_adcbc2e1131386fccb1474b0bdf045926"><div class="ttname"><a href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">mshadow::index_t</a></div><div class="ttdeci">int32_t index_t</div><div class="ttdoc">type that will be used for index </div><div class="ttdef"><b>Definition:</b> base.h:291</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4_html_a4065a6d7c9a59bd0b1b8d307ed727118"><div class="ttname"><a href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html#a4065a6d7c9a59bd0b1b8d307ed727118">mshadow::expr::Plan&lt; ChannelUnpoolingExp&lt; Reducer, SrcExp, DType, srcdim &gt;, DType &gt;::Plan</a></div><div class="ttdeci">Plan(const ChannelUnpoolingExp&lt; Reducer, SrcExp, DType, srcdim &gt; &amp;e)</div><div class="ttdef"><b>Definition:</b> channel_unpool.h:105</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ShapeCheck_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1ShapeCheck.html">mshadow::expr::ShapeCheck</a></div><div class="ttdoc">runtime shape checking template get the shape of an expression, report error if shape mismatch ...</div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:346</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_af66ac21d72443adc489d003f6a8ef162"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#af66ac21d72443adc489d003f6a8ef162">mshadow::expr::ChannelUnpoolingExp::kstride_</a></div><div class="ttdeci">index_t kstride_</div><div class="ttdoc">kernel size in width </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:36</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1Exp_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1Exp.html">mshadow::expr::Exp</a></div><div class="ttdoc">defines how expression exp can be evaluated and stored into dst </div><div class="ttdef"><b>Definition:</b> expression.h:61</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_a6138b429b172019e06fce28cdc7ff719"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#a6138b429b172019e06fce28cdc7ff719">mshadow::expr::ChannelUnpoolingExp::pchannel_</a></div><div class="ttdeci">index_t pchannel_</div><div class="ttdoc">channel of pooled expression </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:32</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1ChannelUnpoolingExp_html_aa7ef822bd76d4c19aa30720acd91d293"><div class="ttname"><a href="structmshadow_1_1expr_1_1ChannelUnpoolingExp.html#aa7ef822bd76d4c19aa30720acd91d293">mshadow::expr::ChannelUnpoolingExp::data_src_</a></div><div class="ttdeci">const SrcExp &amp; data_src_</div><div class="ttdoc">source input, corresponds to src in pooling </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:26</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1Exp_html_a99e5454eca73df87ecf8b66d3b3470f5"><div class="ttname"><a href="structmshadow_1_1expr_1_1Exp.html#a99e5454eca73df87ecf8b66d3b3470f5">mshadow::expr::Exp::self</a></div><div class="ttdeci">const SubType &amp; self(void) const </div><div class="ttdef"><b>Definition:</b> expression.h:64</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1MakeTensorExp_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1MakeTensorExp.html">mshadow::expr::MakeTensorExp</a></div><div class="ttdoc">a general class that allows extension that makes tensors of some shape </div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:25</div></div>
<div class="ttc" id="namespacemshadow_html"><div class="ttname"><a href="namespacemshadow.html">mshadow</a></div><div class="ttdoc">namespace for mshadow </div><div class="ttdef"><b>Definition:</b> base.h:282</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4_html_a2451dc9e4573ae139d2596d5ed75df20"><div class="ttname"><a href="structmshadow_1_1expr_1_1Plan_3_01ChannelUnpoolingExp_3_01Reducer_00_01SrcExp_00_01DType_00_01srcdim_01_4_00_01DType_01_4.html#a2451dc9e4573ae139d2596d5ed75df20">mshadow::expr::Plan&lt; ChannelUnpoolingExp&lt; Reducer, SrcExp, DType, srcdim &gt;, DType &gt;::Eval</a></div><div class="ttdeci">MSHADOW_XINLINE DType Eval(index_t i, index_t j) const </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:110</div></div>
<div class="ttc" id="structmshadow_1_1expr_1_1MakeTensorExp_html_a2a2f9b6b828035ea38bfb8620db42a82"><div class="ttname"><a href="structmshadow_1_1expr_1_1MakeTensorExp.html#a2a2f9b6b828035ea38bfb8620db42a82">mshadow::expr::MakeTensorExp&lt; ChannelUnpoolingExp&lt; Reducer, SrcExp, DType, srcdim &gt;, SrcExp, srcdim, DType &gt;::shape_</a></div><div class="ttdeci">Shape&lt; dim &gt; shape_</div><div class="ttdoc">the shape of this expression </div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:29</div></div>
<div class="ttc" id="namespacemshadow_1_1expr_html_a76f288226b4f3d46fa611099c4d790d3"><div class="ttname"><a href="namespacemshadow_1_1expr.html#a76f288226b4f3d46fa611099c4d790d3">mshadow::expr::ch_unpool</a></div><div class="ttdeci">ChannelUnpoolingExp&lt; Reducer, SrcExp, DType, ExpInfo&lt; SrcExp &gt;::kDim &gt; ch_unpool(const Exp&lt; SrcExp, DType, etype &gt; &amp;data_src, const Exp&lt; SrcExp, DType, etype &gt; &amp;data_pooled, const Exp&lt; SrcExp, DType, etype &gt; &amp;grad_pooled, index_t nsize, index_t stride, index_t pad)</div><div class="ttdoc">channel unpooling, do unroll over (local nearby) channels </div><div class="ttdef"><b>Definition:</b> channel_unpool.h:80</div></div>
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