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| <a href="optimizer_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> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * software distributed under the License is distributed on an</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#ifndef MXNET_CPP_OPTIMIZER_H_</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#define MXNET_CPP_OPTIMIZER_H_</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <memory></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <functional></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="cpp-package_2include_2mxnet-cpp_2base_8h.html">mxnet-cpp/base.h</a>"</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "dmlc/logging.h"</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="cpp-package_2include_2mxnet-cpp_2ndarray_8h.html">mxnet-cpp/ndarray.h</a>"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="op__map_8h.html">mxnet-cpp/op_map.h</a>"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="lr__scheduler_8h.html">mxnet-cpp/lr_scheduler.h</a>"</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span><a class="code" href="namespacemxnet.html">mxnet</a> {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span>cpp {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html"> 46</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">explicit</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a0f9555beda838a27b235ab5a3e4c13c4">Optimizer</a>(<span class="keywordtype">unsigned</span> begin_num_update);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">virtual</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">GetType</a>() <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">virtual</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#afbf49dabe167d93b686985604f7db510">~Optimizer</a>();</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html#a4206a3949c453ffe570f3eb58ad9f41e"> 69</a></span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> *<a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a4206a3949c453ffe570f3eb58ad9f41e">SetParam</a>(<span class="keyword">const</span> std::string &name, <span class="keyword">const</span> T &value) {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> std::string value_str;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> std::stringstream ss;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> ss << value;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> ss >> value_str;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ae6f4b597b1a285eb0a4d5fee4fedc2f9">params_</a>[name] = value_str;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">return</span> <span class="keyword">this</span>;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html#ad59fa81da353fa992709fe95f64327c6"> 83</a></span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> *<a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ad59fa81da353fa992709fe95f64327c6">SetLRScheduler</a>(std::unique_ptr<LRScheduler> lrScheduler) {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> CHECK(lrScheduler);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ad03f167498541f5bbbbffcdecb875445">lrScheduler_</a> = std::move(lrScheduler);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ad03f167498541f5bbbbffcdecb875445">lrScheduler_</a>->SetLR(std::stof(<a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ae6f4b597b1a285eb0a4d5fee4fedc2f9">params_</a>[<span class="stringliteral">"lr"</span>]));</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">return</span> <span class="keyword">this</span>;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">Update</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> grad) = 0;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// TODO(zhangcheng-qinyinghua)</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// implement Update a list of arrays, maybe in the form of map</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// void Update(int index, std::vector<NDArray> weights, std::vector<NDArray></span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// grad, mx_float lr);</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a683ac39ae1ca0e6caf60fc7c19c793a5">Serialize</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html#ae6f4b597b1a285eb0a4d5fee4fedc2f9"> 108</a></span> std::map<std::string, std::string> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ae6f4b597b1a285eb0a4d5fee4fedc2f9">params_</a>;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">static</span> <a class="code" href="classmxnet_1_1cpp_1_1OpMap.html">OpMap</a>*& <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#abfc49efe03b65b06ae351f347dddc058">op_map</a>();</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">const</span> std::vector<const char*> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ae9530eaa064b8b5e75cd413f8b8d2a17">GetParamKeys_</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">const</span> std::vector<const char*> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a74656e689b598755a47aa651de71971d">GetParamValues_</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html#a9b50b92bbac6f55311e3f68f0edcc656"> 112</a></span> std::map<int, unsigned> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a9b50b92bbac6f55311e3f68f0edcc656">count_</a>;</div><div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html#a1d681d2c3fe689bf9014efdd5216abf3"> 113</a></span> <span class="keywordtype">unsigned</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac2ed52bd79811cddbe61bdb3387fcb7a">begin_num_update_</a>, <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a1d681d2c3fe689bf9014efdd5216abf3">num_update_</a>;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keywordtype">unsigned</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a299346e9e9eacaec1009f1d73a2a3fe8">UpdateCount_</a>(<span class="keywordtype">int</span> index);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keywordtype">float</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a37513a5bd944855133a97c2aa17d6f27">GetLR_</a>(<span class="keywordtype">int</span> index);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keywordtype">float</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a10e1a3206436b942eec0f02d96384e39">GetWD_</a>(<span class="keywordtype">int</span> index);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">CreateState_</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight);</div><div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1Optimizer.html#ad03f167498541f5bbbbffcdecb875445"> 118</a></span> std::unique_ptr<LRScheduler> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ad03f167498541f5bbbbffcdecb875445">lrScheduler_</a> = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> };</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="namespacemxnet_1_1cpp.html#a16a22578671e5ebcf8addb2275c317bc"> 121</a></span> <span class="keyword">typedef</span> std::function<Optimizer*()> <a class="code" href="namespacemxnet_1_1cpp.html#a16a22578671e5ebcf8addb2275c317bc">OptimizerCreator</a>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1OptimizerRegistry.html"> 123</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1OptimizerRegistry.html">OptimizerRegistry</a> {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">static</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a>* Find(<span class="keyword">const</span> std::string& name);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">static</span> <span class="keywordtype">int</span> __REGISTER__(<span class="keyword">const</span> std::string& name, OptimizerCreator creator);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">static</span> std::map<std::string, OptimizerCreator>& cmap();</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <a class="code" href="classmxnet_1_1cpp_1_1OptimizerRegistry.html">OptimizerRegistry</a>() = <span class="keyword">delete</span>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> ~<a class="code" href="classmxnet_1_1cpp_1_1OptimizerRegistry.html">OptimizerRegistry</a>() = <span class="keyword">delete</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> };</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="optimizer_8h.html#af2d102c73cf9fe9bcc63a00e70083eaf"> 133</a></span> <span class="preprocessor">#define MXNETCPP_REGISTER_OPTIMIZER(Name, OptimizerType) \</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor"> static int __make_ ## OptimizerType ## _ ## Name ## __ = \</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="preprocessor"> OptimizerRegistry::__REGISTER__(#Name, [](){return new OptimizerType();})</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1SGDOptimizer.html"> 137</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1SGDOptimizer.html">SGDOptimizer</a> : <span class="keyword">public</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">explicit</span> <a class="code" href="classmxnet_1_1cpp_1_1SGDOptimizer.html">SGDOptimizer</a>(<span class="keywordtype">unsigned</span> begin_num_update = 0);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">GetType</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">Update</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> grad) <span class="keyword">override</span>;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">virtual</span> ~<a class="code" href="classmxnet_1_1cpp_1_1SGDOptimizer.html">SGDOptimizer</a>();</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">CreateState_</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight) <span class="keyword">override</span>;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> std::map<int, NDArray*> states_;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <a class="code" href="c__api_8h.html#aa2e96133f49cfdc1095da6cd08afbce0">AtomicSymbolCreator</a> update_handle_;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <a class="code" href="c__api_8h.html#aa2e96133f49cfdc1095da6cd08afbce0">AtomicSymbolCreator</a> mom_update_handle_;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> };</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1RMSPropOptimizer.html"> 150</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1RMSPropOptimizer.html">RMSPropOptimizer</a> : <span class="keyword">public</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keyword">explicit</span> <a class="code" href="classmxnet_1_1cpp_1_1RMSPropOptimizer.html">RMSPropOptimizer</a>(<span class="keywordtype">unsigned</span> begin_num_update = 0);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">GetType</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">Update</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> grad) <span class="keyword">override</span>;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">virtual</span> ~<a class="code" href="classmxnet_1_1cpp_1_1RMSPropOptimizer.html">RMSPropOptimizer</a>();</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">CreateState_</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight) <span class="keyword">override</span>;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> std::map<int, NDArray*> n_, g_, delta_;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <a class="code" href="c__api_8h.html#aa2e96133f49cfdc1095da6cd08afbce0">AtomicSymbolCreator</a> update_handle_;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <a class="code" href="c__api_8h.html#aa2e96133f49cfdc1095da6cd08afbce0">AtomicSymbolCreator</a> alex_update_handle_;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> };</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1AdamOptimizer.html"> 163</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1AdamOptimizer.html">AdamOptimizer</a> : <span class="keyword">public</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> {</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">explicit</span> <a class="code" href="classmxnet_1_1cpp_1_1AdamOptimizer.html">AdamOptimizer</a>(<span class="keywordtype">unsigned</span> begin_num_update = 0);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">GetType</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">Update</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> grad) <span class="keyword">override</span>;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">virtual</span> ~<a class="code" href="classmxnet_1_1cpp_1_1AdamOptimizer.html">AdamOptimizer</a>();</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">CreateState_</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight) <span class="keyword">override</span>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> std::map<int, NDArray*> mean_;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> std::map<int, NDArray*> var_;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <a class="code" href="c__api_8h.html#aa2e96133f49cfdc1095da6cd08afbce0">AtomicSymbolCreator</a> update_handle_;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> };</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1AdaGradOptimizer.html"> 176</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1AdaGradOptimizer.html">AdaGradOptimizer</a> : <span class="keyword">public</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> {</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">explicit</span> <a class="code" href="classmxnet_1_1cpp_1_1AdaGradOptimizer.html">AdaGradOptimizer</a>(<span class="keywordtype">unsigned</span> begin_num_update = 0);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">GetType</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">Update</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> grad) <span class="keyword">override</span>;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="keyword">virtual</span> ~<a class="code" href="classmxnet_1_1cpp_1_1AdaGradOptimizer.html">AdaGradOptimizer</a>();</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">CreateState_</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight) <span class="keyword">override</span>;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> std::map<int, NDArray*> history_;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> };</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="classmxnet_1_1cpp_1_1AdaDeltaOptimizer.html"> 187</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1cpp_1_1AdaDeltaOptimizer.html">AdaDeltaOptimizer</a> : <span class="keyword">public</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html">Optimizer</a> {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">explicit</span> <a class="code" href="classmxnet_1_1cpp_1_1AdaDeltaOptimizer.html">AdaDeltaOptimizer</a>(<span class="keywordtype">unsigned</span> begin_num_update = 0);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> std::string <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">GetType</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">Update</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> grad) <span class="keyword">override</span>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">virtual</span> ~<a class="code" href="classmxnet_1_1cpp_1_1AdaDeltaOptimizer.html">AdaDeltaOptimizer</a>();</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">CreateState_</a>(<span class="keywordtype">int</span> index, <a class="code" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> weight) <span class="keyword">override</span>;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> std::map<int, NDArray*> acc_g_, acc_delta_;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> };</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> } <span class="comment">// namespace cpp</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> } <span class="comment">// namespace mxnet</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor">#endif // MXNET_CPP_OPTIMIZER_H_</span></div><div class="ttc" id="classmxnet_1_1cpp_1_1SGDOptimizer_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1SGDOptimizer.html">mxnet::cpp::SGDOptimizer</a></div><div class="ttdef"><b>Definition:</b> optimizer.h:137</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1OpMap_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1OpMap.html">mxnet::cpp::OpMap</a></div><div class="ttdoc">OpMap instance holds a map of all the symbol creators so we can get symbol creators by name...</div><div class="ttdef"><b>Definition:</b> op_map.h:42</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1AdamOptimizer_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1AdamOptimizer.html">mxnet::cpp::AdamOptimizer</a></div><div class="ttdef"><b>Definition:</b> optimizer.h:163</div></div> |
| <div class="ttc" id="op__map_8h_html"><div class="ttname"><a href="op__map_8h.html">op_map.h</a></div><div class="ttdoc">definition of OpMap </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a299346e9e9eacaec1009f1d73a2a3fe8"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a299346e9e9eacaec1009f1d73a2a3fe8">mxnet::cpp::Optimizer::UpdateCount_</a></div><div class="ttdeci">unsigned UpdateCount_(int index)</div></div> |
| <div class="ttc" id="namespacemxnet_html"><div class="ttname"><a href="namespacemxnet.html">mxnet</a></div><div class="ttdoc">namespace of mxnet </div><div class="ttdef"><b>Definition:</b> base.h:126</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a0f9555beda838a27b235ab5a3e4c13c4"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a0f9555beda838a27b235ab5a3e4c13c4">mxnet::cpp::Optimizer::Optimizer</a></div><div class="ttdeci">Optimizer(unsigned begin_num_update)</div><div class="ttdoc">constructor </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_ae9530eaa064b8b5e75cd413f8b8d2a17"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#ae9530eaa064b8b5e75cd413f8b8d2a17">mxnet::cpp::Optimizer::GetParamKeys_</a></div><div class="ttdeci">const std::vector< const char * > GetParamKeys_() const </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_ac59b1ed1083ca4640cd92ca9206e148d"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#ac59b1ed1083ca4640cd92ca9206e148d">mxnet::cpp::Optimizer::GetType</a></div><div class="ttdeci">virtual std::string GetType() const =0</div><div class="ttdoc">get optimizer type </div></div> |
| <div class="ttc" id="lr__scheduler_8h_html"><div class="ttname"><a href="lr__scheduler_8h.html">lr_scheduler.h</a></div><div class="ttdoc">Scheduling learning rate. </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_ac2ed52bd79811cddbe61bdb3387fcb7a"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#ac2ed52bd79811cddbe61bdb3387fcb7a">mxnet::cpp::Optimizer::begin_num_update_</a></div><div class="ttdeci">unsigned begin_num_update_</div><div class="ttdef"><b>Definition:</b> optimizer.h:113</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a1d681d2c3fe689bf9014efdd5216abf3"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a1d681d2c3fe689bf9014efdd5216abf3">mxnet::cpp::Optimizer::num_update_</a></div><div class="ttdeci">unsigned num_update_</div><div class="ttdef"><b>Definition:</b> optimizer.h:113</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html">mxnet::cpp::Optimizer</a></div><div class="ttdoc">Optimizer interface. </div><div class="ttdef"><b>Definition:</b> optimizer.h:46</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a9b50b92bbac6f55311e3f68f0edcc656"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a9b50b92bbac6f55311e3f68f0edcc656">mxnet::cpp::Optimizer::count_</a></div><div class="ttdeci">std::map< int, unsigned > count_</div><div class="ttdef"><b>Definition:</b> optimizer.h:112</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1AdaDeltaOptimizer_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1AdaDeltaOptimizer.html">mxnet::cpp::AdaDeltaOptimizer</a></div><div class="ttdef"><b>Definition:</b> optimizer.h:187</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1AdaGradOptimizer_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1AdaGradOptimizer.html">mxnet::cpp::AdaGradOptimizer</a></div><div class="ttdef"><b>Definition:</b> optimizer.h:176</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1NDArray_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1NDArray.html">mxnet::cpp::NDArray</a></div><div class="ttdoc">NDArray interface. </div><div class="ttdef"><b>Definition:</b> ndarray.h:120</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a10e1a3206436b942eec0f02d96384e39"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a10e1a3206436b942eec0f02d96384e39">mxnet::cpp::Optimizer::GetWD_</a></div><div class="ttdeci">float GetWD_(int index)</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_aaff919054071b6b77e0f2b222d3b6ebe"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#aaff919054071b6b77e0f2b222d3b6ebe">mxnet::cpp::Optimizer::Update</a></div><div class="ttdeci">virtual void Update(int index, NDArray weight, NDArray grad)=0</div><div class="ttdoc">Update a weight with gradient. </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_ad03f167498541f5bbbbffcdecb875445"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#ad03f167498541f5bbbbffcdecb875445">mxnet::cpp::Optimizer::lrScheduler_</a></div><div class="ttdeci">std::unique_ptr< LRScheduler > lrScheduler_</div><div class="ttdef"><b>Definition:</b> optimizer.h:118</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1OptimizerRegistry_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1OptimizerRegistry.html">mxnet::cpp::OptimizerRegistry</a></div><div class="ttdef"><b>Definition:</b> optimizer.h:123</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1RMSPropOptimizer_html"><div class="ttname"><a href="classmxnet_1_1cpp_1_1RMSPropOptimizer.html">mxnet::cpp::RMSPropOptimizer</a></div><div class="ttdef"><b>Definition:</b> optimizer.h:150</div></div> |
| <div class="ttc" id="cpp-package_2include_2mxnet-cpp_2ndarray_8h_html"><div class="ttname"><a href="cpp-package_2include_2mxnet-cpp_2ndarray_8h.html">ndarray.h</a></div></div> |
| <div class="ttc" id="cpp-package_2include_2mxnet-cpp_2base_8h_html"><div class="ttname"><a href="cpp-package_2include_2mxnet-cpp_2base_8h.html">base.h</a></div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_ae6f4b597b1a285eb0a4d5fee4fedc2f9"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#ae6f4b597b1a285eb0a4d5fee4fedc2f9">mxnet::cpp::Optimizer::params_</a></div><div class="ttdeci">std::map< std::string, std::string > params_</div><div class="ttdef"><b>Definition:</b> optimizer.h:108</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_afbf49dabe167d93b686985604f7db510"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#afbf49dabe167d93b686985604f7db510">mxnet::cpp::Optimizer::~Optimizer</a></div><div class="ttdeci">virtual ~Optimizer()</div><div class="ttdoc">destructor </div></div> |
| <div class="ttc" id="c__api_8h_html_aa2e96133f49cfdc1095da6cd08afbce0"><div class="ttname"><a href="c__api_8h.html#aa2e96133f49cfdc1095da6cd08afbce0">AtomicSymbolCreator</a></div><div class="ttdeci">void * AtomicSymbolCreator</div><div class="ttdoc">handle to a function that takes param and creates symbol </div><div class="ttdef"><b>Definition:</b> c_api.h:68</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a74656e689b598755a47aa651de71971d"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a74656e689b598755a47aa651de71971d">mxnet::cpp::Optimizer::GetParamValues_</a></div><div class="ttdeci">const std::vector< const char * > GetParamValues_() const </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a4206a3949c453ffe570f3eb58ad9f41e"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a4206a3949c453ffe570f3eb58ad9f41e">mxnet::cpp::Optimizer::SetParam</a></div><div class="ttdeci">Optimizer * SetParam(const std::string &name, const T &value)</div><div class="ttdoc">set config parameters </div><div class="ttdef"><b>Definition:</b> optimizer.h:69</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a31606655261991fa067ee7198999151f"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a31606655261991fa067ee7198999151f">mxnet::cpp::Optimizer::CreateState_</a></div><div class="ttdeci">virtual void CreateState_(int index, NDArray weight)</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a683ac39ae1ca0e6caf60fc7c19c793a5"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a683ac39ae1ca0e6caf60fc7c19c793a5">mxnet::cpp::Optimizer::Serialize</a></div><div class="ttdeci">std::string Serialize() const </div><div class="ttdoc">Serialize the optimizer parameters to a string. </div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_abfc49efe03b65b06ae351f347dddc058"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#abfc49efe03b65b06ae351f347dddc058">mxnet::cpp::Optimizer::op_map</a></div><div class="ttdeci">static OpMap *& op_map()</div></div> |
| <div class="ttc" id="namespacemxnet_1_1cpp_html_a16a22578671e5ebcf8addb2275c317bc"><div class="ttname"><a href="namespacemxnet_1_1cpp.html#a16a22578671e5ebcf8addb2275c317bc">mxnet::cpp::OptimizerCreator</a></div><div class="ttdeci">std::function< Optimizer *()> OptimizerCreator</div><div class="ttdef"><b>Definition:</b> optimizer.h:121</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_ad59fa81da353fa992709fe95f64327c6"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#ad59fa81da353fa992709fe95f64327c6">mxnet::cpp::Optimizer::SetLRScheduler</a></div><div class="ttdeci">Optimizer * SetLRScheduler(std::unique_ptr< LRScheduler > lrScheduler)</div><div class="ttdef"><b>Definition:</b> optimizer.h:83</div></div> |
| <div class="ttc" id="classmxnet_1_1cpp_1_1Optimizer_html_a37513a5bd944855133a97c2aa17d6f27"><div class="ttname"><a href="classmxnet_1_1cpp_1_1Optimizer.html#a37513a5bd944855133a97c2aa17d6f27">mxnet::cpp::Optimizer::GetLR_</a></div><div class="ttdeci">float GetLR_(int index)</div></div> |
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