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| <div class="title">crf_feature_gen.sql_in</div> </div> |
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| <a href="crf__feature__gen_8sql__in.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* ----------------------------------------------------------------------- */</span><span class="comment">/**</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * @file crf_feature_gen.sql_in </span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * @brief SQL function for POS/NER feature extraction</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * @date February 2012</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * @sa For an introduction to POS/NER feature extraction, see the module</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * description \ref grp_crf</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> */</span><span class="comment">/* ----------------------------------------------------------------------- */</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> m4_include(`SQLCommon.m4<span class="stringliteral">')</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="stringliteral"></span><span class="comment"></span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">/**</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * @brief This function extracts POS/NER features from the training data.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * @param segmenttbl Name of table containing all the tokenized training sentences. </span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * @param regextbl Name of table containing all the regular expressions to capture regex features.</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * @param dictionary Name of table containing the dictionary.</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * @param featuretbl features generated from the traning dataset</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * @param featureset unique featrue set generated from the training dataset </span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.crf_train_fgen(</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  segmenttbl text, </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  regextbl text, </div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  dictionary text,</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  featuretbl text,</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  featureset text) RETURNS void AS </div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> $$</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  origClientMinMessages = plpy.execute("SELECT setting AS setting FROM pg_settings WHERE name = \'client_min_messages\';")</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  plpy.execute("SET client_min_messages TO warning;")</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  plpy.execute("SELECT MADLIB_SCHEMA.create_schema_pg_temp();");</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  tmp1_feature = "pg_temp._madlib_tmp1_feature"</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  tmp_rtbl = "pg_temp._madlib_tmp_rtbl"</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  tmp_dense_mtbl = "pg_temp._madlib_tmp_dense_mtbl"</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  dense_mtbl = "pg_temp._madlib_dense_mtbl"</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  sparse_rtbl = "pg_temp._madlib_sparse_rtbl"</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  sparse_mtbl = "pg_temp._madlib_sparse_mtbl"</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  tmp_featureset = "pg_temp._madlib_tmp_featureset"</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  tmp_segmenttbl = "pg_temp._madlib_tmp_segmenttbl"</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  plpy.execute("""DROP TABLE IF EXISTS """ + tmp1_feature + """,""" + tmp_rtbl + """,""" + tmp_dense_mtbl + """,""" + dense_mtbl + """,""" + sparse_rtbl + """,""" + sparse_mtbl + """,""" + tmp_featureset + """,""" + tmp_segmenttbl + """;""")</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"><a class="code" href="crf__feature__gen_8sql__in.html#a80e9192613662ba6dfd3ac90057205ee"> 46</a></span>  </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  plpy.execute("""CREATE TABLE """ + tmp1_feature + """(start_pos integer,doc_id integer, f_name text, feature integer[]);""")</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  plpy.execute("""CREATE TABLE """ + tmp_rtbl + """(start_pos integer,doc_id integer, feature integer[]);""")</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  plpy.execute("""CREATE TABLE """ + tmp_dense_mtbl + """(start_pos integer,doc_id integer, feature integer[]);""")</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  plpy.execute("""CREATE TABLE """ + dense_mtbl + """(doc_id integer, dense_m integer[]);""")</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  plpy.execute("""CREATE TABLE """ + sparse_rtbl + """(doc_id integer,f_size integer, sparse_r integer[]);""")</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  plpy.execute("""CREATE TABLE """ + sparse_mtbl + """(sparse_m integer[]);""")</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  plpy.execute("""CREATE TABLE """ + tmp_featureset + """(f_name text, feature integer[]);""")</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  plpy.execute("""CREATE TABLE """ + tmp_segmenttbl + """(start_pos int,doc_id int,seg_text text,label int,max_pos int);""")</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  plpy.execute("""SET client_min_messages TO """ + str(origClientMinMessages[0]['setting<span class="stringliteral">']) + """;""")</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="stringliteral"> # replace digits with "DIGIT" keyword</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_segmenttbl + """ SELECT start_pos,doc_id,seg_text,label,max_pos FROM """ + segmenttbl + """ WHERE </span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="stringliteral"> NOT (seg_text ~ E'</span>^[-+]?([0-9]{1,3}[,]?)*[0-9]{1,3}$<span class="stringliteral">' OR seg_text ~ E'</span>^[-+]?[0-9]*[.][0-9]+$<span class="stringliteral">');""")</span></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_segmenttbl + """ SELECT start_pos,doc_id,'</span>DIGIT<span class="stringliteral">',label,max_pos FROM """ + segmenttbl + """ WHERE </span></div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="stringliteral"> seg_text ~ E'</span>^[-+]?([0-9]{1,3}[,]?)*[0-9]{1,3}$<span class="stringliteral">' OR seg_text ~E'</span>^[-+]?[0-9]*[.][0-9]+$<span class="stringliteral">';""") </span></div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="stringliteral"> # insert into dictionary table</span></div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + dictionary + """(token, total)</span></div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="stringliteral"> SELECT seg_text, count(*)</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """ </span></div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="stringliteral"> GROUP BY seg_text;""")</span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="stringliteral"> # create a temporary table to store all the features</span></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="stringliteral"> # extract all the edge features</span></div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp1_feature + """(start_pos, doc_id, f_name, feature) </span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="stringliteral"> SELECT doc2.start_pos, doc2.doc_id, '</span>E.<span class="stringliteral">', ARRAY[doc1.label, doc2.label]</span></div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """ doc1, """ + tmp_segmenttbl + """ doc2</span></div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="stringliteral"> WHERE doc1.doc_id = doc2.doc_id AND doc1.start_pos+1 = doc2.start_pos;""")</span></div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="stringliteral"> #extract all the regex features</span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp1_feature + """(start_pos, doc_id, f_name, feature) </span></div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="stringliteral"> SELECT start_pos, doc_id, '</span>R_<span class="stringliteral">' || name, ARRAY[-1, label]</span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="stringliteral"> FROM """ + regextbl + """, """ + tmp_segmenttbl + """ </span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="stringliteral"> WHERE seg_text ~ pattern;""")</span></div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="stringliteral"> #extract all the start feature</span></div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp1_feature + """(start_pos, doc_id, f_name, feature) </span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="stringliteral"> SELECT start_pos, doc_id, '</span>S.<span class="stringliteral">', ARRAY[-1, label]</span></div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """ </span></div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="stringliteral"> WHERE start_pos = 0;""")</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="stringliteral"> #extract all the end featue</span></div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp1_feature + """(start_pos, doc_id, f_name, feature) </span></div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="stringliteral"> SELECT start_pos, doc_id, '</span>End.<span class="stringliteral">', ARRAY[-1, label]</span></div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """ </span></div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="stringliteral"> WHERE start_pos = max_pos;""")</span></div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="stringliteral"> #word feature</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp1_feature + """(start_pos, doc_id, f_name, feature) </span></div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="stringliteral"> SELECT start_pos, doc_id, '</span>W_<span class="stringliteral">' || seg_text, ARRAY[-1, label]</span></div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """;""")</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="stringliteral"> #unknown feature</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp1_feature + """(start_pos, doc_id, f_name, feature) </span></div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="stringliteral"> SELECT start_pos, doc_id, '</span>U<span class="stringliteral">', ARRAY[-1, label]</span></div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """ seg, """ + dictionary + """ dic</span></div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="stringliteral"> WHERE seg.seg_text = dic.token AND dic.total <= 1;""")</span></div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_featureset + """(f_name, feature) </span></div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="stringliteral"> SELECT DISTINCT f_name, feature</span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="stringliteral"> FROM """ + tmp1_feature + """;""")</span></div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="stringliteral"> plpy.execute("""DROP SEQUENCE IF EXISTS seq;</span></div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="stringliteral"> CREATE SEQUENCE seq START 1 INCREMENT 1;""")</span></div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="stringliteral"> #get all distcint features</span></div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + featureset + """(f_index, f_name, feature) </span></div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="stringliteral"> SELECT nextval('</span>seq<span class="stringliteral">')-1, f_name, feature</span></div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="stringliteral"> FROM """ + tmp_featureset + """;""")</span></div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="stringliteral"> </span></div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="stringliteral"> rv = plpy.execute("""SELECT COUNT(*) AS total_feature FROM """ + featureset + """;""")</span></div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_rtbl + """(start_pos,doc_id,feature)</span></div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="stringliteral"> SELECT start_pos, doc_id, array_cat(fset.feature, </span></div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="stringliteral"> ARRAY[f_index,start_pos, </span></div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="stringliteral"> CASE WHEN """ + tmp1_feature + """.feature = fset.feature THEN 1</span></div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="stringliteral"> ELSE 0</span></div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="stringliteral"> END] )</span></div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="stringliteral"> FROM """ + tmp1_feature + """, """ + featureset + """ fset</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="stringliteral"> WHERE """ + tmp1_feature + """.f_name = fset.f_name AND fset.f_name <> '</span>E.<span class="stringliteral">';""")</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + sparse_rtbl + """(doc_id, f_size, sparse_r)</span></div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="stringliteral"> SELECT doc_id,""" + str(rv[0]['</span>total_feature<span class="stringliteral">']) + """, </span></div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="stringliteral"> MADLIB_SCHEMA.array_union(feature::integer[] order by start_pos)</span></div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="stringliteral"> FROM """ + tmp_rtbl + """</span></div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="stringliteral"> GROUP BY doc_id;""")</span></div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_dense_mtbl + """(start_pos,doc_id,feature)</span></div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="stringliteral"> SELECT start_pos, doc_id, </span></div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="stringliteral"> array_cat(fset.feature, ARRAY[f_index,start_pos,1])</span></div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="stringliteral"> FROM """ + tmp1_feature + """, """ + featureset + """ fset</span></div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="stringliteral"> WHERE start_pos > 0 AND """ + tmp1_feature + """.f_name = fset.f_name AND """ + tmp1_feature + """.feature = fset.feature AND fset.f_name = '</span>E.<span class="stringliteral">';""")</span></div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + dense_mtbl + """(doc_id, dense_m)</span></div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="stringliteral"> SELECT doc_id, MADLIB_SCHEMA.array_union(feature::integer[] order by start_pos)</span></div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="stringliteral"> FROM """ + tmp_dense_mtbl + """</span></div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="stringliteral"> GROUP BY doc_id;""")</span></div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + sparse_mtbl + """(sparse_m)</span></div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="stringliteral"> SELECT MADLIB_SCHEMA.array_union(array_cat(ARRAY[f_index],feature))</span></div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="stringliteral"> FROM """ + featureset + """ fset</span></div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="stringliteral"> WHERE f_name = '</span>E.<span class="stringliteral">';""")</span></div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + featuretbl + """(doc_id, f_size, sparse_r, dense_m, sparse_m)</span></div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="stringliteral"> SELECT """ + sparse_rtbl + """.doc_id, f_size, sparse_r, dense_m, sparse_m </span></div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="stringliteral"> FROM """ + sparse_rtbl + """, """ + dense_mtbl + """, """ + sparse_mtbl + """</span></div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="stringliteral"> WHERE """ + sparse_rtbl + """.doc_id = """ + dense_mtbl + """.doc_id;""")</span></div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="stringliteral">$$ LANGUAGE plpythonu STRICT; </span></div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="stringliteral"></span><span class="comment"></span></div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">/**</span></div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * @brief This function extracts POS/NER features from the testing data.</span></div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> * This feature extraction function will produce two factor tables, "m table"</span></div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> * (\a viterbi_mtbl) and "r table" (\a viterbi_rtbl). The \a viterbi_mtbl</span></div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> * table and \a viterbi_rtbl table are used to calculate the best label</span></div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> * sequence for each sentence.</span></div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"> * - <em>viterbi_mtbl</em> table</span></div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> * encodes the edge features which are solely dependent on upon current label and</span></div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> * previous y value. The m table has three columns which are prev_label, label,</span></div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> * and value respectively.</span></div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> * If the number of labels in \f$ n \f$, then the m factor table will \f$ n^2 \f$</span></div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> * rows. Each row encodes the transition feature weight value from the previous label</span></div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> * to the current label.</span></div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> * \a startFeature is considered as a special edge feature which is from the</span></div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> * beginning to the first token. Likewise, \a endFeature can be considered</span></div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> * as a special edge feature which is from the last token to the very end.</span></div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> * So m table encodes the edgeFeature, startFeature, and endFeature.</span></div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> * If the total number of labels in the label space is 45 from 0 to 44,</span></div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> * then the m factor array is as follows:</span></div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> * <pre></span></div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> * 0 1 2 3 4 5...44</span></div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> * startFeature -1 a a a a a a...a</span></div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> * edgeFeature 0 a a a a a a...a</span></div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * edgeFeature 1 a a a a a a...a</span></div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * ...</span></div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * edgeFeature 44 a a a a a a...a</span></div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> * endFeature 45 a a a a a a...a</pre></span></div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> * - viterbi_r table</span></div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"> * is related to specific tokens. It encodes the single state features,</span></div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> * e.g., wordFeature, RegexFeature for all tokens. The r table is represented</span></div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> * in the following way.</span></div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> * <pre></span></div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> * 0 1 2 3 4...44</span></div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> * token1 a a a a a...a</span></div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> * token2 a a a a a...a</pre></span></div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> * @param segmenttbl Name of table containing all the tokenized testing sentences.</span></div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> * @param dictionary Name of table containing the dictionary.</span></div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> * @param labeltbl Name of table containing the the label space used in POS or other NLP tasks.</span></div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> * @param regextbl Name of table containing all the regular expressions to capture regex features.</span></div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"> * @param viterbi_mtbl Name of table to store the m factors.</span></div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"> * @param viterbi_rtbl Name of table to store the r factors.</span></div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.crf_test_fgen(</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  segmenttbl text,</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  dictionary text,</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  labeltbl text,</div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  regextbl text,</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  featuretbl text,</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  viterbi_mtbl text,</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  viterbi_rtbl text) RETURNS void AS</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>  # Clear m&r tables</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  plpy.execute("""</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  DROP TABLE IF EXISTS {viterbi_mtbl}, {viterbi_rtbl};</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  """.format(</div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  viterbi_mtbl = viterbi_mtbl,</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  viterbi_rtbl = viterbi_rtbl</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  ))</div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  # Create m&r factor table</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  plpy.execute("""</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  CREATE TABLE {viterbi_mtbl} (score integer[][]);</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  """.format(viterbi_mtbl = viterbi_mtbl));</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  plpy.execute("""</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  CREATE TABLE {viterbi_rtbl}</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"><a class="code" href="crf__feature__gen_8sql__in.html#a14382e24235202905e522ef513966dee"> 231</a></span>  (seg_text text, label integer, score integer);</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  """.format(viterbi_rtbl = viterbi_rtbl))</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  # Create index for performance</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  plpy.execute("""</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  CREATE INDEX {viterbi_rtbl}_idx ON {viterbi_rtbl} (seg_text)</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  """.format(viterbi_rtbl = viterbi_rtbl))</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  origClientMinMessages = plpy.execute("SELECT setting AS setting FROM pg_settings WHERE name = \'client_min_messages\';")</div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  plpy.execute("SET client_min_messages TO warning;")</div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  plpy.execute("SELECT MADLIB_SCHEMA.create_schema_pg_temp();")</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>  prev_labeltbl = "pg_temp._madlib_prev_labeltbl"</div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  segment_hashtbl = "pg_temp._madlib_segment_hashtbl"</div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  unknown_segment_hashtbl = "pg_temp._madlib_unknown_segment_hashtbl"</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  rtbl = "pg_temp._madlib_rtbl"</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  mtbl = "pg_temp._madlib_mtbl"</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  tmp_segmenttbl = "pg_temp._madlib_tmp_segmenttbl"</div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  tmp_dict = "pg_temp._madlib_tmp_dict"</div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  plpy.execute("""DROP TABLE IF EXISTS """ + prev_labeltbl + """,""" + segment_hashtbl + """,""" + unknown_segment_hashtbl + """,""" + rtbl + """,""" + mtbl + """,""" + tmp_segmenttbl + """,""" + tmp_dict + """;""")</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  plpy.execute("""CREATE TABLE """ + prev_labeltbl + """(id int);""")</div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  # Insert unique tokens into the """ + segment_hashtbl + """</div> |
| <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  plpy.execute("CREATE TABLE """ + segment_hashtbl + """(seg_text text);""")</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>  # create a temp partial dictionary table which stores the words whose occurance</div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  # is below certain threshold, refer to the CRF Package</div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  plpy.execute("""CREATE TABLE """ + unknown_segment_hashtbl + """(seg_text text);""")</div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  # Generate a sparse matrix to store the r factors</div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  plpy.execute("""CREATE TABLE """ + rtbl + """ (seg_text text NOT NULL, label integer, value double precision);""")</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>  # Generate M factor table</div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  plpy.execute("""CREATE TABLE """ + mtbl + """(prev_label integer, label integer, value double precision);""")</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>  # temp tables to keep segments and dictionary with all digits replaced by the word 'DIGIT<span class="stringliteral">'</span></div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="stringliteral"> plpy.execute("""CREATE TABLE """ + tmp_segmenttbl + """(start_pos int,doc_id int,seg_text text,max_pos int);""")</span></div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="stringliteral"> plpy.execute("""CREATE TABLE """+ tmp_dict + """(token text, total int);""")</span></div> |
| <div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="stringliteral"> plpy.execute("""SET client_min_messages TO """ + str(origClientMinMessages[0]['</span>setting<span class="stringliteral">']) + """;""")</span></div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="stringliteral"> # Calculate the number of labels in the label space</span></div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="stringliteral"> rv = plpy.execute("""SELECT COUNT(*) AS total_label FROM """ + labeltbl + """;""")</span></div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="stringliteral"> nlabel = rv[0]['</span>total_label<span class="stringliteral">']</span></div> |
| <div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="stringliteral"> # replace digits with "DIGIT" keyword</span></div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_segmenttbl + """ SELECT start_pos,doc_id,seg_text,max_pos FROM """ + segmenttbl + """ WHERE</span></div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="stringliteral"> NOT (seg_text ~ E'</span>^[-+]?([0-9]{1,3}[,]?)*[0-9]{1,3}$<span class="stringliteral">' OR seg_text ~ E'</span>^[-+]?[0-9]*[.][0-9]+$<span class="stringliteral">');""")</span></div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + tmp_segmenttbl + """ SELECT start_pos,doc_id,'</span>DIGIT<span class="stringliteral">',max_pos FROM """ + segmenttbl + """ WHERE </span></div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="stringliteral"> seg_text ~ E'</span>^[-+]?([0-9]{1,3}[,]?)*[0-9]{1,3}$<span class="stringliteral">' OR seg_text ~E'</span>^[-+]?[0-9]*[.][0-9]+$<span class="stringliteral">';""")</span></div> |
| <div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """+ tmp_dict + """ SELECT token,sum(total) FROM """ + dictionary + """ GROUP BY token </span></div> |
| <div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="stringliteral"> HAVING (token NOT LIKE E'</span>^[-+]?([0-9]{1,3}[,]?)*[0-9]{1,3}$<span class="stringliteral">' AND token NOT LIKE E'</span>^[-+]?[0-9]*[.][0-9]+$<span class="stringliteral">');""")</span></div> |
| <div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """+ tmp_dict + """ SELECT '</span>DIGIT<span class="stringliteral">',sum(total) FROM """ + dictionary + """ WHERE </span></div> |
| <div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="stringliteral"> (token ~ E'</span>^[-+]?([0-9]{1,3}[,]?)*[0-9]{1,3}$<span class="stringliteral">' OR token ~ E'</span>^[-+]?[0-9]*[.][0-9]+$<span class="stringliteral">') GROUP BY token;""")</span></div> |
| <div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + segment_hashtbl + """(seg_text)</span></div> |
| <div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="stringliteral"> SELECT DISTINCT seg_text</span></div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="stringliteral"> FROM """ + tmp_segmenttbl + """;""")</span></div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + unknown_segment_hashtbl + """(seg_text)</span></div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="stringliteral"> ((SELECT DISTINCT seg_text</span></div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="stringliteral"> FROM """ + segment_hashtbl + """)</span></div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="stringliteral"> EXCEPT</span></div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="stringliteral"> (SELECT DISTINCT token</span></div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="stringliteral"> FROM """+ tmp_dict + """ </span></div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="stringliteral"> WHERE total>1));""")</span></div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + prev_labeltbl + """</span></div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="stringliteral"> SELECT id</span></div> |
| <div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="stringliteral"> FROM """ + labeltbl + """;</span></div> |
| <div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="stringliteral"> INSERT INTO """ + prev_labeltbl + """ VALUES(-1);</span></div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="stringliteral"> INSERT INTO """ + prev_labeltbl + """ VALUES( """ + str(nlabel) + """);""")</span></div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="stringliteral"> # Generate sparse M factor table</span></div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + mtbl + """(prev_label, label, value)</span></div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="stringliteral"> SELECT prev_label.id, label.id, 0</span></div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="stringliteral"> FROM """ + labeltbl + """ AS label,</span></div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="stringliteral"> """ + prev_labeltbl + """ as prev_label;""")</span></div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="stringliteral"> # EdgeFeature and startFeature, startFeature can be considered as a special edgeFeature</span></div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + mtbl + """(prev_label, label, value)</span></div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="stringliteral"> SELECT prev_label_id,label_id,weight</span></div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="stringliteral"> FROM """ + featuretbl + """ AS features</span></div> |
| <div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="stringliteral"> WHERE features.prev_label_id<>-1 OR features.name = '</span>S.<span class="stringliteral">';""")</span></div> |
| <div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="stringliteral"> # EndFeature, endFeature can be considered as a special edgeFeature</span></div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + mtbl + """(prev_label, label, value)</span></div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="stringliteral"> SELECT """ + str(nlabel) + """, label_id, weight</span></div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="stringliteral"> FROM """ + featuretbl + """ AS features</span></div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="stringliteral"> WHERE features.name = '</span>End.<span class="stringliteral">';""")</span></div> |
| <div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="stringliteral">m4_ifdef(`__HAS_ORDERED_AGGREGATES__'</span>, `</div> |
| <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  plpy.execute(<span class="stringliteral">""</span><span class="stringliteral">"INSERT INTO "</span><span class="stringliteral">""</span> + viterbi_mtbl + <span class="stringliteral">""</span><span class="stringliteral">"</span></div> |
| <div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="stringliteral"> SELECT array_agg(weight ORDER BY prev_label,label)</span></div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="stringliteral"> FROM (SELECT prev_label, label, (SUM(value)*1000)::integer AS weight</span></div> |
| <div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="stringliteral"> FROM "</span><span class="stringliteral">""</span> + mtbl + <span class="stringliteral">""</span><span class="stringliteral">"</span></div> |
| <div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="stringliteral"> GROUP BY prev_label,label</span></div> |
| <div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="stringliteral"> ORDER BY prev_label,label) as TEMP_MTBL;"</span><span class="stringliteral">""</span>.format(</div> |
| <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  viterbi_mtbl = viterbi_mtbl</div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  ))</div> |
| <div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="stringliteral">', `</span></div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="stringliteral"> plpy.execute("""INSERT INTO """ + viterbi_mtbl + """</span></div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="stringliteral"> SELECT ARRAY(</span></div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="stringliteral"> SELECT</span></div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="stringliteral"> (SUM(value) * 1000)::integer</span></div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="stringliteral"> FROM</span></div> |
| <div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="stringliteral"> """ + mtbl + """</span></div> |
| <div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="stringliteral"> GROUP BY</span></div> |
| <div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="stringliteral"> prev_label, label</span></div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="stringliteral"> ORDER BY</span></div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="stringliteral"> prev_label, label</span></div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="stringliteral"> );""".format(</span></div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="stringliteral"> viterbi_mtbl = viterbi_mtbl</span></div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="stringliteral"> ))</span></div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="stringliteral">'</span>)</div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  plpy.execute(<span class="stringliteral">""</span><span class="stringliteral">"INSERT INTO "</span><span class="stringliteral">""</span> + rtbl + <span class="stringliteral">""</span><span class="stringliteral">"(seg_text, label, value)</span></div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="stringliteral"> SELECT segment_hashtbl.seg_text, labels.id, 0</span></div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="stringliteral"> FROM "</span><span class="stringliteral">""</span> + segment_hashtbl + <span class="stringliteral">""</span><span class="stringliteral">" segment_hashtbl,</span></div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="stringliteral"> "</span><span class="stringliteral">""</span> + labeltbl + <span class="stringliteral">""</span><span class="stringliteral">" AS labels;"</span><span class="stringliteral">""</span>)</div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="preprocessor"> # RegExFeature</span></div> |
| <div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="preprocessor"></span> plpy.execute(<span class="stringliteral">""</span><span class="stringliteral">"INSERT INTO "</span><span class="stringliteral">""</span> + rtbl + <span class="stringliteral">""</span><span class="stringliteral">"(seg_text, label, value)</span></div> |
| <div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="stringliteral"> SELECT segment_hashtbl.seg_text, features.label_id, features.weight</span></div> |
| <div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="stringliteral"> FROM "</span><span class="stringliteral">""</span> + segment_hashtbl + <span class="stringliteral">""</span><span class="stringliteral">" AS segment_hashtbl,</span></div> |
| <div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="stringliteral"> "</span><span class="stringliteral">""</span> + featuretbl + <span class="stringliteral">""</span><span class="stringliteral">" AS features,</span></div> |
| <div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="stringliteral"> "</span><span class="stringliteral">""</span> + regextbl + <span class="stringliteral">""</span><span class="stringliteral">" AS regex</span></div> |
| <div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="stringliteral"> WHERE segment_hashtbl.seg_text ~ regex.pattern</span></div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="stringliteral"> AND features.name ='R_' || regex.name;"</span><span class="stringliteral">""</span>)</div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="preprocessor"> # UnknownFeature</span></div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="preprocessor"></span> plpy.execute(<span class="stringliteral">""</span><span class="stringliteral">"INSERT INTO "</span><span class="stringliteral">""</span> + rtbl + <span class="stringliteral">""</span><span class="stringliteral">"(seg_text, label, value)</span></div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="stringliteral"> SELECT segment_hashtbl.seg_text, features.label_id, features.weight</span></div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="stringliteral"> FROM "</span><span class="stringliteral">""</span> + unknown_segment_hashtbl + <span class="stringliteral">""</span><span class="stringliteral">" AS segment_hashtbl,</span></div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="stringliteral"> "</span><span class="stringliteral">""</span> + featuretbl + <span class="stringliteral">""</span><span class="stringliteral">" AS features</span></div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="stringliteral"> WHERE features.name = 'U';"</span><span class="stringliteral">""</span>)</div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor"> # Wordfeature</span></div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor"></span> plpy.execute(<span class="stringliteral">""</span><span class="stringliteral">"INSERT INTO "</span><span class="stringliteral">""</span> + rtbl + <span class="stringliteral">""</span><span class="stringliteral">"(seg_text, label, value)</span></div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="stringliteral"> SELECT seg_text, label_id, weight</span></div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="stringliteral"> FROM "</span><span class="stringliteral">""</span> + segment_hashtbl + <span class="stringliteral">""</span><span class="stringliteral">",</span></div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="stringliteral"> "</span><span class="stringliteral">""</span> + featuretbl + <span class="stringliteral">""</span><span class="stringliteral">"</span></div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="stringliteral"> WHERE name = 'W_' || seg_text;"</span><span class="stringliteral">""</span>)</div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="preprocessor"> # Factor table</span></div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="preprocessor"></span> plpy.execute(<span class="stringliteral">""</span><span class="stringliteral">"INSERT INTO "</span><span class="stringliteral">""</span> + viterbi_rtbl + <span class="stringliteral">""</span><span class="stringliteral">"(seg_text, label, score)</span></div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="stringliteral"> SELECT seg_text,label,(SUM(value)*1000)::integer AS score</span></div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="stringliteral"> FROM "</span><span class="stringliteral">""</span> + rtbl + <span class="stringliteral">""</span><span class="stringliteral">"</span></div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="stringliteral"> GROUP BY seg_text,label;"</span><span class="stringliteral">""</span>)</div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span> $$ LANGUAGE plpythonu STRICT;</div> |
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