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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
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<div class="headertitle"><div class="title">kernel_parameters.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include "svm_classifier/kernel_parameters.hpp"</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include <stdexcept></span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include <cmath></span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span> </div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="keyword">namespace </span>svm_classifier {</div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> KernelParameters::KernelParameters()</div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> : kernel_type_(KernelType::LINEAR)</div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> , multiclass_strategy_(MulticlassStrategy::ONE_VS_REST)</div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> , C_(1.0)</div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> , tolerance_(1e-3)</div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> , max_iterations_(-1)</div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> , probability_(false)</div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> , gamma_(-1.0) <span class="comment">// Auto gamma</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> , degree_(3)</div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> , coef0_(0.0)</div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> , cache_size_(200.0)</div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> {</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> }</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> KernelParameters::KernelParameters(<span class="keyword">const</span> nlohmann::json& config) : KernelParameters()</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> {</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> set_parameters(config);</div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> }</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keywordtype">void</span> KernelParameters::set_parameters(<span class="keyword">const</span> nlohmann::json& config)</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> {</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// Set kernel type first as it affects validation</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"kernel"</span>)) {</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"kernel"</span>].is_string()) {</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> set_kernel_type(string_to_kernel_type(config[<span class="stringliteral">"kernel"</span>]));</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Kernel must be a string"</span>);</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> }</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> }</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// Set multiclass strategy</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"multiclass_strategy"</span>)) {</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"multiclass_strategy"</span>].is_string()) {</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> set_multiclass_strategy(string_to_multiclass_strategy(config[<span class="stringliteral">"multiclass_strategy"</span>]));</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Multiclass strategy must be a string"</span>);</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> }</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> }</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// Set common parameters</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"C"</span>)) {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"C"</span>].is_number()) {</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> set_C(config[<span class="stringliteral">"C"</span>]);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"C must be a number"</span>);</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> }</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"tolerance"</span>)) {</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"tolerance"</span>].is_number()) {</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> set_tolerance(config[<span class="stringliteral">"tolerance"</span>]);</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Tolerance must be a number"</span>);</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> }</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"max_iterations"</span>)) {</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"max_iterations"</span>].is_number_integer()) {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> set_max_iterations(config[<span class="stringliteral">"max_iterations"</span>]);</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Max iterations must be an integer"</span>);</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"probability"</span>)) {</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"probability"</span>].is_boolean()) {</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> set_probability(config[<span class="stringliteral">"probability"</span>]);</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Probability must be a boolean"</span>);</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> }</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// Set kernel-specific parameters</span></div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"gamma"</span>)) {</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"gamma"</span>].is_number()) {</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> set_gamma(config[<span class="stringliteral">"gamma"</span>]);</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"gamma"</span>].is_string() && config[<span class="stringliteral">"gamma"</span>] == <span class="stringliteral">"auto"</span>) {</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> set_gamma(-1.0); <span class="comment">// Auto gamma</span></div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Gamma must be a number or 'auto'"</span>);</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> }</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"degree"</span>)) {</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"degree"</span>].is_number_integer()) {</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> set_degree(config[<span class="stringliteral">"degree"</span>]);</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Degree must be an integer"</span>);</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> }</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> }</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"coef0"</span>)) {</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"coef0"</span>].is_number()) {</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> set_coef0(config[<span class="stringliteral">"coef0"</span>]);</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Coef0 must be a number"</span>);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> }</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">if</span> (config.contains(<span class="stringliteral">"cache_size"</span>)) {</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">if</span> (config[<span class="stringliteral">"cache_size"</span>].is_number()) {</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> set_cache_size(config[<span class="stringliteral">"cache_size"</span>]);</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Cache size must be a number"</span>);</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> }</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// Validate all parameters</span></div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> validate();</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> }</div>
|
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> nlohmann::json KernelParameters::get_parameters()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> nlohmann::json params = {</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> {<span class="stringliteral">"kernel"</span>, kernel_type_to_string(kernel_type_)},</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> {<span class="stringliteral">"multiclass_strategy"</span>, multiclass_strategy_to_string(multiclass_strategy_)},</div>
|
|
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> {<span class="stringliteral">"C"</span>, C_},</div>
|
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> {<span class="stringliteral">"tolerance"</span>, tolerance_},</div>
|
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> {<span class="stringliteral">"max_iterations"</span>, max_iterations_},</div>
|
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> {<span class="stringliteral">"probability"</span>, probability_},</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> {<span class="stringliteral">"cache_size"</span>, cache_size_}</div>
|
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> };</div>
|
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
|
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// Add kernel-specific parameters</span></div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">switch</span> (kernel_type_) {</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">case</span> KernelType::LINEAR:</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// No additional parameters for linear kernel</span></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">case</span> KernelType::RBF:</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> params[<span class="stringliteral">"gamma"</span>] = is_gamma_auto() ? <span class="stringliteral">"auto"</span> : gamma_;</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordflow">case</span> KernelType::POLYNOMIAL:</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> params[<span class="stringliteral">"degree"</span>] = degree_;</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> params[<span class="stringliteral">"gamma"</span>] = is_gamma_auto() ? <span class="stringliteral">"auto"</span> : gamma_;</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> params[<span class="stringliteral">"coef0"</span>] = coef0_;</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">case</span> KernelType::SIGMOID:</div>
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|
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> params[<span class="stringliteral">"gamma"</span>] = is_gamma_auto() ? <span class="stringliteral">"auto"</span> : gamma_;</div>
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|
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> params[<span class="stringliteral">"coef0"</span>] = coef0_;</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> }</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">return</span> params;</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> }</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordtype">void</span> KernelParameters::set_kernel_type(KernelType kernel)</div>
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|
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> {</div>
|
|
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> kernel_type_ = kernel;</div>
|
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// Reset kernel-specific parameters to defaults when kernel changes</span></div>
|
|
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">auto</span> defaults = get_default_parameters(kernel);</div>
|
|
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordflow">if</span> (defaults.contains(<span class="stringliteral">"gamma"</span>)) {</div>
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|
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> gamma_ = defaults[<span class="stringliteral">"gamma"</span>];</div>
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|
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
|
|
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">if</span> (defaults.contains(<span class="stringliteral">"degree"</span>)) {</div>
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|
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> degree_ = defaults[<span class="stringliteral">"degree"</span>];</div>
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|
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> }</div>
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|
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">if</span> (defaults.contains(<span class="stringliteral">"coef0"</span>)) {</div>
|
|
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> coef0_ = defaults[<span class="stringliteral">"coef0"</span>];</div>
|
|
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> }</div>
|
|
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> }</div>
|
|
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
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|
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordtype">void</span> KernelParameters::set_C(<span class="keywordtype">double</span> c)</div>
|
|
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> {</div>
|
|
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">if</span> (c <= 0.0) {</div>
|
|
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"C must be positive (C > 0)"</span>);</div>
|
|
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> }</div>
|
|
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> C_ = c;</div>
|
|
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> }</div>
|
|
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div>
|
|
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordtype">void</span> KernelParameters::set_gamma(<span class="keywordtype">double</span> gamma)</div>
|
|
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> {</div>
|
|
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="comment">// Allow negative values for auto gamma (-1.0)</span></div>
|
|
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">if</span> (gamma > 0.0 || gamma == -1.0) {</div>
|
|
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> gamma_ = gamma;</div>
|
|
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Gamma must be positive or -1 for auto"</span>);</div>
|
|
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> }</div>
|
|
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> }</div>
|
|
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div>
|
|
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">void</span> KernelParameters::set_degree(<span class="keywordtype">int</span> degree)</div>
|
|
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> {</div>
|
|
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">if</span> (degree < 1) {</div>
|
|
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Degree must be >= 1"</span>);</div>
|
|
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div>
|
|
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> degree_ = degree;</div>
|
|
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> }</div>
|
|
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div>
|
|
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordtype">void</span> KernelParameters::set_coef0(<span class="keywordtype">double</span> coef0)</div>
|
|
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> {</div>
|
|
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> coef0_ = coef0;</div>
|
|
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> }</div>
|
|
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
|
|
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordtype">void</span> KernelParameters::set_tolerance(<span class="keywordtype">double</span> tol)</div>
|
|
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> {</div>
|
|
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordflow">if</span> (tol <= 0.0) {</div>
|
|
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Tolerance must be positive (tolerance > 0)"</span>);</div>
|
|
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> }</div>
|
|
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> tolerance_ = tol;</div>
|
|
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> }</div>
|
|
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div>
|
|
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keywordtype">void</span> KernelParameters::set_max_iterations(<span class="keywordtype">int</span> max_iter)</div>
|
|
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> {</div>
|
|
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="keywordflow">if</span> (max_iter <= 0 && max_iter != -1) {</div>
|
|
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Max iterations must be positive or -1 for no limit"</span>);</div>
|
|
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> }</div>
|
|
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> max_iterations_ = max_iter;</div>
|
|
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> }</div>
|
|
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> </div>
|
|
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keywordtype">void</span> KernelParameters::set_cache_size(<span class="keywordtype">double</span> cache_size)</div>
|
|
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> {</div>
|
|
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keywordflow">if</span> (cache_size < 0.0) {</div>
|
|
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Cache size must be non-negative"</span>);</div>
|
|
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> }</div>
|
|
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> cache_size_ = cache_size;</div>
|
|
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> }</div>
|
|
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> </div>
|
|
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordtype">void</span> KernelParameters::set_probability(<span class="keywordtype">bool</span> probability)</div>
|
|
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> {</div>
|
|
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> probability_ = probability;</div>
|
|
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> }</div>
|
|
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
|
|
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordtype">void</span> KernelParameters::set_multiclass_strategy(MulticlassStrategy strategy)</div>
|
|
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> {</div>
|
|
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> multiclass_strategy_ = strategy;</div>
|
|
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> }</div>
|
|
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> </div>
|
|
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordtype">void</span> KernelParameters::validate()<span class="keyword"> const</span></div>
|
|
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span><span class="keyword"> </span>{</div>
|
|
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="comment">// Validate common parameters</span></div>
|
|
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">if</span> (C_ <= 0.0) {</div>
|
|
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"C must be positive"</span>);</div>
|
|
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> }</div>
|
|
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div>
|
|
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">if</span> (tolerance_ <= 0.0) {</div>
|
|
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Tolerance must be positive"</span>);</div>
|
|
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> }</div>
|
|
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> </div>
|
|
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">if</span> (max_iterations_ <= 0 && max_iterations_ != -1) {</div>
|
|
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Max iterations must be positive or -1"</span>);</div>
|
|
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> }</div>
|
|
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> </div>
|
|
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keywordflow">if</span> (cache_size_ < 0.0) {</div>
|
|
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Cache size must be non-negative"</span>);</div>
|
|
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> }</div>
|
|
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> </div>
|
|
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="comment">// Validate kernel-specific parameters</span></div>
|
|
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> validate_kernel_parameters();</div>
|
|
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> }</div>
|
|
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div>
|
|
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keywordtype">void</span> KernelParameters::validate_kernel_parameters()<span class="keyword"> const</span></div>
|
|
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span><span class="keyword"> </span>{</div>
|
|
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordflow">switch</span> (kernel_type_) {</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">case</span> KernelType::LINEAR:</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="comment">// Linear kernel has no additional parameters to validate</span></div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> </div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keywordflow">case</span> KernelType::RBF:</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <span class="keywordflow">if</span> (gamma_ > 0.0 || gamma_ == -1.0) {</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="comment">// Valid gamma (positive or auto)</span></div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"RBF kernel gamma must be positive or auto (-1)"</span>);</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> }</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> </div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keywordflow">case</span> KernelType::POLYNOMIAL:</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordflow">if</span> (degree_ < 1) {</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Polynomial degree must be >= 1"</span>);</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> }</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="keywordflow">if</span> (gamma_ > 0.0 || gamma_ == -1.0) {</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// Valid gamma</span></div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Polynomial kernel gamma must be positive or auto (-1)"</span>);</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> }</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <span class="comment">// coef0 can be any real number</span></div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> </div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">case</span> KernelType::SIGMOID:</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> <span class="keywordflow">if</span> (gamma_ > 0.0 || gamma_ == -1.0) {</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="comment">// Valid gamma</span></div>
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|
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> } <span class="keywordflow">else</span> {</div>
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|
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Sigmoid kernel gamma must be positive or auto (-1)"</span>);</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> }</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="comment">// coef0 can be any real number</span></div>
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|
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> }</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> }</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> </div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> nlohmann::json KernelParameters::get_default_parameters(KernelType kernel)</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> {</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> nlohmann::json defaults = {</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> {<span class="stringliteral">"C"</span>, 1.0},</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> {<span class="stringliteral">"tolerance"</span>, 1e-3},</div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> {<span class="stringliteral">"max_iterations"</span>, -1},</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> {<span class="stringliteral">"probability"</span>, <span class="keyword">false</span>},</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> {<span class="stringliteral">"multiclass_strategy"</span>, <span class="stringliteral">"ovr"</span>},</div>
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|
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> {<span class="stringliteral">"cache_size"</span>, 200.0}</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> };</div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> </div>
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|
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">switch</span> (kernel) {</div>
|
|
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="keywordflow">case</span> KernelType::LINEAR:</div>
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|
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> defaults[<span class="stringliteral">"kernel"</span>] = <span class="stringliteral">"linear"</span>;</div>
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|
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> </div>
|
|
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <span class="keywordflow">case</span> KernelType::RBF:</div>
|
|
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> defaults[<span class="stringliteral">"kernel"</span>] = <span class="stringliteral">"rbf"</span>;</div>
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|
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> defaults[<span class="stringliteral">"gamma"</span>] = -1.0; <span class="comment">// Auto gamma</span></div>
|
|
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div>
|
|
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keywordflow">case</span> KernelType::POLYNOMIAL:</div>
|
|
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> defaults[<span class="stringliteral">"kernel"</span>] = <span class="stringliteral">"polynomial"</span>;</div>
|
|
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> defaults[<span class="stringliteral">"degree"</span>] = 3;</div>
|
|
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> defaults[<span class="stringliteral">"gamma"</span>] = -1.0; <span class="comment">// Auto gamma</span></div>
|
|
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> defaults[<span class="stringliteral">"coef0"</span>] = 0.0;</div>
|
|
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> </div>
|
|
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keywordflow">case</span> KernelType::SIGMOID:</div>
|
|
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> defaults[<span class="stringliteral">"kernel"</span>] = <span class="stringliteral">"sigmoid"</span>;</div>
|
|
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> defaults[<span class="stringliteral">"gamma"</span>] = -1.0; <span class="comment">// Auto gamma</span></div>
|
|
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> defaults[<span class="stringliteral">"coef0"</span>] = 0.0;</div>
|
|
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> }</div>
|
|
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> </div>
|
|
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keywordflow">return</span> defaults;</div>
|
|
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> }</div>
|
|
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> </div>
|
|
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keywordtype">void</span> KernelParameters::reset_to_defaults()</div>
|
|
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> {</div>
|
|
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keyword">auto</span> defaults = get_default_parameters(kernel_type_);</div>
|
|
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> set_parameters(defaults);</div>
|
|
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> }</div>
|
|
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> </div>
|
|
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> <span class="keywordtype">void</span> KernelParameters::set_gamma_auto()</div>
|
|
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> {</div>
|
|
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> gamma_ = -1.0;</div>
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|
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> }</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> </div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span>} <span class="comment">// namespace svm_classifier</span></div>
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