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http://github.com/apresta/tagger · HTML · 249 lines · 217 code · 11 blank · 21 comment · 0 complexity · d3f93963216efdfea24f9d513192ebe7 MD5 · raw file 

    

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  42.         Package&nbsp;tagger ::
    43. 

  43.         Module&nbsp;tagger
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  44.       </span>
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  54.             target="_top">no&nbsp;frames</a>]</span></td></tr>
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  59. <!-- ==================== MODULE DESCRIPTION ==================== -->
    60. 

  60. <h1 class="epydoc">Module tagger</h1><p class="nomargin-top"><span class="codelink"><a href="tagger.tagger-pysrc.html">source&nbsp;code</a></span></p>
    61. 

  61. <p>====== tagger ======</p>
    62. 

  62.   <p>Module for extracting tags from text documents.</p>
    63. 

  63.   <p>Copyright (C) 2011 by Alessandro Presta</p>
    64. 

  64.   <h1 class="heading">Configuration</h1>
    65. 

  65.     <p>Dependencies: python2.7, stemming, nltk (optional), lxml (optional),
    66. 

  66.     tkinter (optional)</p>
    67. 

  67.     <p>You can install the stemming package with:</p>
    68. 

  68. <pre class="literalblock">
    69. 

  69.    $ easy_install stemming
    70. 

  70. </pre>
    71. 

  71.   <h1 class="heading">Usage</h1>
    72. 

  72.     <p>Tagging a text document from Python:</p>
    73. 

  73. <pre class="literalblock">
    74. 

  74.    import tagger
    75. 

  75.    weights = pickle.load(open('data/dict.pkl', 'rb')) # or your own dictionary
    76. 

  76.    myreader = tagger.Reader() # or your own reader class
    77. 

  77.    mystemmer = tagger.Stemmer() # or your own stemmer class
    78. 

  78.    myrater = tagger.Rater(weights) # or your own... (you got the idea)
    79. 

  79.    mytagger = Tagger(myreader, mystemmer, myrater)
    80. 

  80.    best_3_tags = mytagger(text_string, 3)
    81. 

  81. </pre>
    82. 

  82.     <p>Running the module as a script:</p>
    83. 

  83. <pre class="literalblock">
    84. 

  84.    $ ./tagger.py &lt;text document(s) to tag&gt;
    85. 

  85. </pre>
    86. 

  86.     <p>Example:</p>
    87. 

  87. <pre class="literalblock">
    88. 

  88.    $ ./tagger.py tests/*
    89. 

  89.    Loading dictionary... 
    90. 

  90.    Tags for  tests/bbc1.txt :
    91. 

  91.    ['bin laden', 'obama', 'pakistan', 'killed', 'raid']
    92. 

  92.    Tags for  tests/bbc2.txt :
    93. 

  93.    ['jo yeates', 'bristol', 'vincent tabak', 'murder', 'strangled']
    94. 

  94.    Tags for  tests/bbc3.txt :
    95. 

  95.    ['snp', 'party', 'election', 'scottish', 'labour']
    96. 

  96.    Tags for  tests/guardian1.txt :
    97. 

  97.    ['bin laden', 'al-qaida', 'killed', 'pakistan', 'al-fawwaz']
    98. 

  98.    Tags for  tests/guardian2.txt :
    99. 

  99.    ['clegg', 'tory', 'lib dem', 'party', 'coalition']
    100. 

  100.    Tags for  tests/post1.txt :
    101. 

  101.    ['sony', 'stolen', 'playstation network', 'hacker attack', 'lawsuit']
    102. 

  102.    Tags for  tests/wikipedia1.txt :
    103. 

  103.    ['universe', 'anthropic principle', 'observed', 'cosmological', 'theory']
    104. 

  104.    Tags for  tests/wikipedia2.txt :
    105. 

  105.    ['beetroot', 'beet', 'betaine', 'blood pressure', 'dietary nitrate']
    106. 

  106.    Tags for  tests/wikipedia3.txt :
    107. 

  107.    ['the lounge lizards', 'jazz', 'john lurie', 'musical', 'albums']
    108. 

  108. </pre>
    109. 

    110. 

  110. <!-- ==================== CLASSES ==================== -->
    111. 

  111. <a name="section-Classes"></a>
    112. 

  112. <table class="summary" border="1" cellpadding="3"
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  118.         <td align="left"><span class="table-header">Classes</span></td>
    119. 

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  128.     <td width="15%" align="right" valign="top" class="summary">
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  129.       <span class="summary-type">&nbsp;</span>
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  130.     </td><td class="summary">
    131. 

  131.         <a href="tagger.tagger.Tag-class.html" class="summary-name">Tag</a><br />
    132. 

  132.       General class for tags (small units of text)
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  133.     </td>
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  137.       <span class="summary-type">&nbsp;</span>
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  138.     </td><td class="summary">
    139. 

  139.         <a href="tagger.tagger.MultiTag-class.html" class="summary-name">MultiTag</a><br />
    140. 

  140.       Class for aggregates of tags (usually next to each other in the 
    141. 

  141.         document)
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  147.     </td><td class="summary">
    148. 

  148.         <a href="tagger.tagger.Reader-class.html" class="summary-name">Reader</a><br />
    149. 

  149.       Class for parsing a string of text to obtain tags
    150. 

  150.     </td>
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  151.   </tr>
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  153.     <td width="15%" align="right" valign="top" class="summary">
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  154.       <span class="summary-type">&nbsp;</span>
    155. 

  155.     </td><td class="summary">
    156. 

  156.         <a href="tagger.tagger.Stemmer-class.html" class="summary-name">Stemmer</a><br />
    157. 

  157.       Class for extracting the stem of a word
    158. 

  158.     </td>
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  159.   </tr>
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  160. <tr>
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  161.     <td width="15%" align="right" valign="top" class="summary">
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  162.       <span class="summary-type">&nbsp;</span>
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  163.     </td><td class="summary">
    164. 

  164.         <a href="tagger.tagger.Rater-class.html" class="summary-name">Rater</a><br />
    165. 

  165.       Class for estimating the relevance of tags
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  166.     </td>
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  167.   </tr>
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  169.     <td width="15%" align="right" valign="top" class="summary">
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  170.       <span class="summary-type">&nbsp;</span>
    171. 

  171.     </td><td class="summary">
    172. 

  172.         <a href="tagger.tagger.Tagger-class.html" class="summary-name">Tagger</a><br />
    173. 

  173.       Master class for tagging text documents
    174. 

  174.     </td>
    175. 

  175.   </tr>
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  176. </table>
    177. 

  177. <!-- ==================== VARIABLES ==================== -->
    178. 

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    198. 

  198.         <a name="__package__"></a><span class="summary-name">__package__</span> = <code title="'tagger'"><code class="variable-quote">'</code><code class="variable-string">tagger</code><code class="variable-quote">'</code></code>
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