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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef CPPJIEBA_DICT_TRIE_HPP</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define CPPJIEBA_DICT_TRIE_HPP</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <iostream></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <fstream></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <cstring></span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <cstdlib></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <cmath></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <limits></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "glog/logging.h"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "StringUtils.hpp"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "Unicode.hpp"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "Trie.hpp"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span><a class="code" href="namespacecppjieba.html">cppjieba</a> {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using namespace </span><a class="code" href="namespacechatopera_1_1utils.html">chatopera::utils</a>;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">const</span> <span class="keywordtype">double</span> MIN_DOUBLE = -3.14e+100;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">const</span> <span class="keywordtype">double</span> MAX_DOUBLE = 3.14e+100;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> DICT_COLUMN_NUM = 3;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> UNKNOWN_TAG = <span class="stringliteral">""</span>;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classcppjieba_1_1DictTrie.html"> 27</a></span> <span class="keyword">class </span><a class="code" href="classcppjieba_1_1DictTrie.html">DictTrie</a> {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">enum</span> UserWordWeightOption {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  WordWeightMin,</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  WordWeightMedian,</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  WordWeightMax,</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }; <span class="comment">// enum UserWordWeightOption</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <a class="code" href="classcppjieba_1_1DictTrie.html">DictTrie</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>& dict_path, <span class="keyword">const</span> <span class="keywordtype">string</span>& user_dict_paths = <span class="stringliteral">""</span>, UserWordWeightOption user_word_weight_opt = WordWeightMedian) {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  Init(dict_path, user_dict_paths, user_word_weight_opt);</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  }</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  ~<a class="code" href="classcppjieba_1_1DictTrie.html">DictTrie</a>() {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">delete</span> trie_;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">bool</span> InsertUserWord(<span class="keyword">const</span> <span class="keywordtype">string</span>& word, <span class="keyword">const</span> <span class="keywordtype">string</span>& tag = UNKNOWN_TAG) {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a> node_info;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (!MakeNodeInfo(node_info, word, user_word_default_weight_, tag)) {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  active_node_infos_.push_back(node_info);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  trie_->InsertNode(node_info.word, &active_node_infos_.back());</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">bool</span> InsertUserWord(<span class="keyword">const</span> <span class="keywordtype">string</span>& word, <span class="keywordtype">int</span> freq, <span class="keyword">const</span> <span class="keywordtype">string</span>& tag = UNKNOWN_TAG) {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a> node_info;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">double</span> weight = freq ? log(1.0 * freq / freq_sum_) : user_word_default_weight_ ;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">if</span> (!MakeNodeInfo(node_info, word, weight, tag)) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  active_node_infos_.push_back(node_info);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  trie_->InsertNode(node_info.word, &active_node_infos_.back());</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a>* Find(RuneStrArray::const_iterator begin, RuneStrArray::const_iterator end)<span class="keyword"> const </span>{</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> trie_->Find(begin, end);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">void</span> Find(RuneStrArray::const_iterator begin,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  RuneStrArray::const_iterator end,</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  vector<struct Dag>&res,</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">size_t</span> max_word_len = MAX_WORD_LENGTH)<span class="keyword"> const </span>{</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  trie_->Find(begin, end, res, max_word_len);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  }</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">bool</span> Find(<span class="keyword">const</span> <span class="keywordtype">string</span>& word) {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">const</span> <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a> *tmp = NULL;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="classlimonp_1_1LocalVector.html">RuneStrArray</a> runes;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span> (!DecodeRunesInString(word, runes)) {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  VLOG(2) << <span class="stringliteral">"Decode failed."</span>;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  tmp = Find(runes.begin(), runes.end());</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span> (tmp == NULL) {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">bool</span> IsUserDictSingleChineseWord(<span class="keyword">const</span> Rune& word)<span class="keyword"> const </span>{</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> IsIn(user_dict_single_chinese_word_, word);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">double</span> GetMinWeight()<span class="keyword"> const </span>{</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> min_weight_;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">void</span> InserUserDictNode(<span class="keyword">const</span> <span class="keywordtype">string</span>& line) {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  vector<string> buf;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a> node_info;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  Split(line, buf, <span class="stringliteral">" "</span>);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span>(buf.size() == 1) {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  MakeNodeInfo(node_info,</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  buf[0],</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  user_word_default_weight_,</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  UNKNOWN_TAG);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (buf.size() == 2) {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  MakeNodeInfo(node_info,</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  buf[0],</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  user_word_default_weight_,</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  buf[1]);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (buf.size() == 3) {</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> freq = atoi(buf[1].c_str());</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  assert(freq_sum_ > 0.0);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">double</span> weight = log(1.0 * freq / freq_sum_);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  MakeNodeInfo(node_info, buf[0], weight, buf[2]);</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  static_node_infos_.push_back(node_info);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (node_info.word.size() == 1) {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  user_dict_single_chinese_word_.insert(node_info.word[0]);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</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"> 133</span>  <span class="keywordtype">void</span> LoadUserDict(<span class="keyword">const</span> vector<string>& buf) {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < buf.size(); i++) {</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  InserUserDictNode(buf[i]);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">void</span> LoadUserDict(<span class="keyword">const</span> set<string>& buf) {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  std::set<string>::const_iterator iter;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">for</span> (iter = buf.begin(); iter != buf.end(); iter++) {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  InserUserDictNode(*iter);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  }</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">void</span> LoadUserDict(<span class="keyword">const</span> <span class="keywordtype">string</span>& filePaths) {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  vector<string> files = Split(filePaths, <span class="stringliteral">"|;"</span>);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">size_t</span> lineno = 0;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < files.size(); i++) {</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  ifstream ifs(files[i].c_str());</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  CHECK(ifs.is_open()) << <span class="stringliteral">"open "</span> << files[i] << <span class="stringliteral">" failed"</span>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">string</span> line;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">for</span> (; getline(ifs, line); lineno++) {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> (line.size() == 0) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  InserUserDictNode(line);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">void</span> Init(<span class="keyword">const</span> <span class="keywordtype">string</span>& dict_path, <span class="keyword">const</span> <span class="keywordtype">string</span>& user_dict_paths, UserWordWeightOption user_word_weight_opt) {</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  LoadDict(dict_path);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  freq_sum_ = CalcFreqSum(static_node_infos_);</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  CalculateWeight(static_node_infos_, freq_sum_);</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  SetStaticWordWeights(user_word_weight_opt);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (user_dict_paths.size()) {</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  LoadUserDict(user_dict_paths);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  Shrink(static_node_infos_);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  CreateTrie(static_node_infos_);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordtype">void</span> CreateTrie(<span class="keyword">const</span> vector<DictUnit>& dictUnits) {</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  assert(dictUnits.size());</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  vector<Unicode> words;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  vector<const DictUnit*> valuePointers;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0 ; i < dictUnits.size(); i ++) {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  words.push_back(dictUnits[i].word);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  valuePointers.push_back(&dictUnits[i]);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  trie_ = <span class="keyword">new</span> <a class="code" href="classcppjieba_1_1Trie.html">Trie</a>(words, valuePointers);</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </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="keywordtype">bool</span> MakeNodeInfo(<a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a>& node_info,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">const</span> <span class="keywordtype">string</span>& word,</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">double</span> weight,</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">const</span> <span class="keywordtype">string</span>& tag) {</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (!DecodeRunesInString(word, node_info.word)) {</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  VLOG(2) << <span class="stringliteral">"Decode "</span> << word << <span class="stringliteral">" failed."</span>;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  node_info.weight = weight;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  node_info.tag = tag;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">void</span> LoadDict(<span class="keyword">const</span> <span class="keywordtype">string</span>& filePath) {</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  ifstream ifs(filePath.c_str());</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  CHECK(ifs.is_open()) << <span class="stringliteral">"open "</span> << filePath << <span class="stringliteral">" failed."</span>;</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordtype">string</span> line;</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  vector<string> buf;</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a> node_info;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> lineno = 0; getline(ifs, line); lineno++) {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  Split(line, buf, <span class="stringliteral">" "</span>);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  CHECK(buf.size() == DICT_COLUMN_NUM) << <span class="stringliteral">"split result illegal, line:"</span> << line;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  MakeNodeInfo(node_info,</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  buf[0],</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  atof(buf[1].c_str()),</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  buf[2]);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  static_node_infos_.push_back(node_info);</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> WeightCompare(<span class="keyword">const</span> <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a>& lhs, <span class="keyword">const</span> <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a>& rhs) {</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> lhs.weight < rhs.weight;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordtype">void</span> SetStaticWordWeights(UserWordWeightOption option) {</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  CHECK(!static_node_infos_.empty());</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  vector<DictUnit> x = static_node_infos_;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  sort(x.begin(), x.end(), WeightCompare);</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  min_weight_ = x[0].weight;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  max_weight_ = x[x.size() - 1].weight;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  median_weight_ = x[x.size() / 2].weight;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">switch</span> (option) {</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">case</span> WordWeightMin:</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  user_word_default_weight_ = min_weight_;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">case</span> WordWeightMedian:</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  user_word_default_weight_ = median_weight_;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  user_word_default_weight_ = max_weight_;</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordtype">double</span> CalcFreqSum(<span class="keyword">const</span> vector<DictUnit>& node_infos)<span class="keyword"> const </span>{</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordtype">double</span> sum = 0.0;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < node_infos.size(); i++) {</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  sum += node_infos[i].weight;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> sum;</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordtype">void</span> CalculateWeight(vector<DictUnit>& node_infos, <span class="keywordtype">double</span> sum)<span class="keyword"> const </span>{</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  assert(sum > 0.0);</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < node_infos.size(); i++) {</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="code" href="structcppjieba_1_1DictUnit.html">DictUnit</a>& node_info = node_infos[i];</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  assert(node_info.weight > 0.0);</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  node_info.weight = log(<span class="keywordtype">double</span>(node_info.weight) / sum);</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  }</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordtype">void</span> Shrink(vector<DictUnit>& units)<span class="keyword"> const </span>{</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  vector<DictUnit>(units.begin(), units.end()).swap(units);</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  vector<DictUnit> static_node_infos_;</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  deque<DictUnit> active_node_infos_; <span class="comment">// must not be vector</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <a class="code" href="classcppjieba_1_1Trie.html">Trie</a> * trie_;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordtype">double</span> freq_sum_;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordtype">double</span> min_weight_;</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordtype">double</span> max_weight_;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordtype">double</span> median_weight_;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordtype">double</span> user_word_default_weight_;</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  unordered_set<Rune> user_dict_single_chinese_word_;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> };</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> }</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classlimonp_1_1LocalVector_html"><div class="ttname"><a href="classlimonp_1_1LocalVector.html">limonp::LocalVector< struct RuneStr ></a></div></div>
<div class="ttc" id="namespacecppjieba_html"><div class="ttname"><a href="namespacecppjieba.html">cppjieba</a></div><div class="ttdef"><b>Definition:</b> DictTrie.hpp:18</div></div>
<div class="ttc" id="structcppjieba_1_1DictUnit_html"><div class="ttname"><a href="structcppjieba_1_1DictUnit.html">cppjieba::DictUnit</a></div><div class="ttdef"><b>Definition:</b> Trie.hpp:15</div></div>
<div class="ttc" id="namespacechatopera_1_1utils_html"><div class="ttname"><a href="namespacechatopera_1_1utils.html">chatopera::utils</a></div><div class="ttdef"><b>Definition:</b> MathUtils.hpp:21</div></div>
<div class="ttc" id="classcppjieba_1_1DictTrie_html"><div class="ttname"><a href="classcppjieba_1_1DictTrie.html">cppjieba::DictTrie</a></div><div class="ttdef"><b>Definition:</b> DictTrie.hpp:27</div></div>
<div class="ttc" id="classcppjieba_1_1Trie_html"><div class="ttname"><a href="classcppjieba_1_1Trie.html">cppjieba::Trie</a></div><div class="ttdef"><b>Definition:</b> Trie.hpp:51</div></div>
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