/doc/tagger.tagger.Rater-class.html

http://github.com/apresta/tagger · HTML · 343 lines · 295 code · 27 blank · 21 comment · 0 complexity · 1c56af4820420d7c36c37efe1b62004b MD5 · raw file 

    

  1. <?xml version="1.0" encoding="ascii"?>
    2. 

  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    3. 

  3.           "DTD/xhtml1-transitional.dtd">
    4. 

  4. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    5. 

  5. <head>
    6. 

  6.   <title>tagger.tagger.Rater</title>
    7. 

  7.   <link rel="stylesheet" href="epydoc.css" type="text/css" />
    8. 

  8.   <script type="text/javascript" src="epydoc.js"></script>
    9. 

  9. </head>
    10. 

  10. 

  11. <body bgcolor="white" text="black" link="blue" vlink="#204080"
    12. 

  12.       alink="#204080">
    13. 

  13. <!-- ==================== NAVIGATION BAR ==================== -->
    14. 

  14. <table class="navbar" border="0" width="100%" cellpadding="0"
    15. 

  15.        bgcolor="#a0c0ff" cellspacing="0">
    16. 

  16.   <tr valign="middle">
    17. 

  17. 

  18.   <!-- Tree link -->
    19. 

  19.       <th>&nbsp;&nbsp;&nbsp;<a
    20. 

  20.         href="module-tree.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>
    21. 

  21. 

  22.   <!-- Index link -->
    23. 

  23.       <th>&nbsp;&nbsp;&nbsp;<a
    24. 

  24.         href="identifier-index.html">Indices</a>&nbsp;&nbsp;&nbsp;</th>
    25. 

  25. 

  26.   <!-- Help link -->
    27. 

  27.       <th>&nbsp;&nbsp;&nbsp;<a
    28. 

  28.         href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>
    29. 

  29. 

  30.   <!-- Project homepage -->
    31. 

  31.       <th class="navbar" align="right" width="100%">
    32. 

  32.         <table border="0" cellpadding="0" cellspacing="0">
    33. 

  33.           <tr><th class="navbar" align="center"
    34. 

  34.             ><a class="navbar" target="_top" href="http://github.com/apresta/tagger">tagger</a></th>
    35. 

  35.           </tr></table></th>
    36. 

  36.   </tr>
    37. 

  37. </table>
    38. 

  38. <table width="100%" cellpadding="0" cellspacing="0">
    39. 

  39.   <tr valign="top">
    40. 

  40.     <td width="100%">
    41. 

  41.       <span class="breadcrumbs">
    42. 

  42.         Package&nbsp;tagger ::
    43. 

  43.         <a href="tagger.tagger-module.html">Module&nbsp;tagger</a> ::
    44. 

  44.         Class&nbsp;Rater
    45. 

  45.       </span>
    46. 

  46.     </td>
    47. 

  47.     <td>
    48. 

  48.       <table cellpadding="0" cellspacing="0">
    49. 

  49.         <!-- hide/show private -->
    50. 

  50.         <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink"
    51. 

  51.     onclick="toggle_private();">hide&nbsp;private</a>]</span></td></tr>
    52. 

  52.         <tr><td align="right"><span class="options"
    53. 

  53.             >[<a href="frames.html" target="_top">frames</a
    54. 

  54.             >]&nbsp;|&nbsp;<a href="tagger.tagger.Rater-class.html"
    55. 

  55.             target="_top">no&nbsp;frames</a>]</span></td></tr>
    56. 

  56.       </table>
    57. 

  57.     </td>
    58. 

  58.   </tr>
    59. 

  59. </table>
    60. 

  60. <!-- ==================== CLASS DESCRIPTION ==================== -->
    61. 

  61. <h1 class="epydoc">Class Rater</h1><p class="nomargin-top"><span class="codelink"><a href="tagger.tagger-pysrc.html#Rater">source&nbsp;code</a></span></p>
    62. 

  62. <center>
    63. 

  63. <center>  <map id="class_hierarchy_for_rater" name="class_hierarchy_for_rater">
    64. 

  64. <area shape="rect" id="node1" href="tagger.extras.NaiveRater-class.html" title="extras.NaiveRater" alt="" coords="5,61,149,88"/>
    65. 

  65. <area shape="rect" id="node2" href="tagger.tagger.Rater-class.html" title="Rater" alt="" coords="48,5,107,32"/>
    66. 

  66. </map>
    67. 

  67.   <img src="class_hierarchy_for_rater.gif" alt='' usemap="#class_hierarchy_for_rater" ismap="ismap" class="graph-without-title" />
    68. 

  68. </center>
    69. 

  69. </center>
    70. 

  70. <hr />
    71. 

  71. <p>Class for estimating the relevance of tags</p>
    72. 

  72.   <p>(the default implementation uses TF (term frequency) multiplied by 
    73. 

  73.   weight, but any other reasonable measure is fine; a quite rudimental 
    74. 

  74.   heuristic tries to discard redundant tags)</p>
    75. 

  75. 

  76. <!-- ==================== INSTANCE METHODS ==================== -->
    77. 

  77. <a name="section-InstanceMethods"></a>
    78. 

  78. <table class="summary" border="1" cellpadding="3"
    79. 

  79.        cellspacing="0" width="100%" bgcolor="white">
    80. 

  80. <tr bgcolor="#70b0f0" class="table-header">
    81. 

  81.   <td colspan="2" class="table-header">
    82. 

  82.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    83. 

  83.       <tr valign="top">
    84. 

  84.         <td align="left"><span class="table-header">Instance Methods</span></td>
    85. 

  85.         <td align="right" valign="top"
    86. 

  86.          ><span class="options">[<a href="#section-InstanceMethods"
    87. 

  87.          class="privatelink" onclick="toggle_private();"
    88. 

  88.          >hide private</a>]</span></td>
    89. 

  89.       </tr>
    90. 

  90.     </table>
    91. 

  91.   </td>
    92. 

  92. </tr>
    93. 

  93. <tr>
    94. 

  94.     <td width="15%" align="right" valign="top" class="summary">
    95. 

  95.       <span class="summary-type">&nbsp;</span>
    96. 

  96.     </td><td class="summary">
    97. 

  97.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    98. 

  98.         <tr>
    99. 

  99.           <td><span class="summary-sig"><a href="tagger.tagger.Rater-class.html#__call__" class="summary-sig-name">__call__</a>(<span class="summary-sig-arg">self</span>,
    100. 

  100.         <span class="summary-sig-arg">tags</span>)</span><br />
    101. 

  101.       Returns:
    102. 

  102.       a list of unique (multi)tags sorted by relevance</td>
    103. 

  103.           <td align="right" valign="top">
    104. 

  104.             <span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.__call__">source&nbsp;code</a></span>
    105. 

  105.             
    106. 

  106.           </td>
    107. 

  107.         </tr>
    108. 

  108.       </table>
    109. 

  109.       
    110. 

  110.     </td>
    111. 

  111.   </tr>
    112. 

  112. <tr>
    113. 

  113.     <td width="15%" align="right" valign="top" class="summary">
    114. 

  114.       <span class="summary-type">&nbsp;</span>
    115. 

  115.     </td><td class="summary">
    116. 

  116.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    117. 

  117.         <tr>
    118. 

  118.           <td><span class="summary-sig"><a href="tagger.tagger.Rater-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
    119. 

  119.         <span class="summary-sig-arg">weights</span>,
    120. 

  120.         <span class="summary-sig-arg">multitag_size</span>=<span class="summary-sig-default">3</span>)</span><br />
    121. 

  121.       Returns:
    122. 

  122.       a new <a href="tagger.tagger.Rater-class.html" class="link">Rater</a>
    123. 

  123.       object</td>
    124. 

  124.           <td align="right" valign="top">
    125. 

  125.             <span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.__init__">source&nbsp;code</a></span>
    126. 

  126.             
    127. 

  127.           </td>
    128. 

  128.         </tr>
    129. 

  129.       </table>
    130. 

  130.       
    131. 

  131.     </td>
    132. 

  132.   </tr>
    133. 

  133. <tr>
    134. 

  134.     <td width="15%" align="right" valign="top" class="summary">
    135. 

  135.       <span class="summary-type">&nbsp;</span>
    136. 

  136.     </td><td class="summary">
    137. 

  137.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    138. 

  138.         <tr>
    139. 

  139.           <td><span class="summary-sig"><a href="tagger.tagger.Rater-class.html#create_multitags" class="summary-sig-name">create_multitags</a>(<span class="summary-sig-arg">self</span>,
    140. 

  140.         <span class="summary-sig-arg">tags</span>)</span><br />
    141. 

  141.       Returns:
    142. 

  142.       a list of multitags</td>
    143. 

  143.           <td align="right" valign="top">
    144. 

  144.             <span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.create_multitags">source&nbsp;code</a></span>
    145. 

  145.             
    146. 

  146.           </td>
    147. 

  147.         </tr>
    148. 

  148.       </table>
    149. 

  149.       
    150. 

  150.     </td>
    151. 

  151.   </tr>
    152. 

  152. <tr>
    153. 

  153.     <td width="15%" align="right" valign="top" class="summary">
    154. 

  154.       <span class="summary-type">&nbsp;</span>
    155. 

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

  156.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    157. 

  157.         <tr>
    158. 

  158.           <td><span class="summary-sig"><a href="tagger.tagger.Rater-class.html#rate_tags" class="summary-sig-name">rate_tags</a>(<span class="summary-sig-arg">self</span>,
    159. 

  159.         <span class="summary-sig-arg">tags</span>)</span></td>
    160. 

  160.           <td align="right" valign="top">
    161. 

  161.             <span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.rate_tags">source&nbsp;code</a></span>
    162. 

  162.             
    163. 

  163.           </td>
    164. 

  164.         </tr>
    165. 

  165.       </table>
    166. 

  166.       
    167. 

  167.     </td>
    168. 

  168.   </tr>
    169. 

  169. </table>
    170. 

  170. <!-- ==================== METHOD DETAILS ==================== -->
    171. 

  171. <a name="section-MethodDetails"></a>
    172. 

  172. <table class="details" border="1" cellpadding="3"
    173. 

  173.        cellspacing="0" width="100%" bgcolor="white">
    174. 

  174. <tr bgcolor="#70b0f0" class="table-header">
    175. 

  175.   <td colspan="2" class="table-header">
    176. 

  176.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    177. 

  177.       <tr valign="top">
    178. 

  178.         <td align="left"><span class="table-header">Method Details</span></td>
    179. 

  179.         <td align="right" valign="top"
    180. 

  180.          ><span class="options">[<a href="#section-MethodDetails"
    181. 

  181.          class="privatelink" onclick="toggle_private();"
    182. 

  182.          >hide private</a>]</span></td>
    183. 

  183.       </tr>
    184. 

  184.     </table>
    185. 

  185.   </td>
    186. 

  186. </tr>
    187. 

  187. </table>
    188. 

  188. <a name="__call__"></a>
    189. 

  189. <div>
    190. 

  190. <table class="details" border="1" cellpadding="3"
    191. 

  191.        cellspacing="0" width="100%" bgcolor="white">
    192. 

  192. <tr><td>
    193. 

  193.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    194. 

  194.   <tr valign="top"><td>
    195. 

  195.   <h3 class="epydoc"><span class="sig"><span class="sig-name">__call__</span>(<span class="sig-arg">self</span>,
    196. 

  196.         <span class="sig-arg">tags</span>)</span>
    197. 

  197.     <br /><em class="fname">(Call operator)</em>
    198. 

  198.   </h3>
    199. 

  199.   </td><td align="right" valign="top"
    200. 

  200.     ><span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.__call__">source&nbsp;code</a></span>&nbsp;
    201. 

  201.     </td>
    202. 

  202.   </tr></table>
    203. 

  203.   
    204. 

  204.   
    205. 

  205.   <dl class="fields">
    206. 

  206.     <dt>Parameters:</dt>
    207. 

  207.     <dd><ul class="nomargin-top">
    208. 

  208.         <li><strong class="pname"><code>tags</code></strong> - a list of (preferably stemmed) tags</li>
    209. 

  209.     </ul></dd>
    210. 

  210.     <dt>Returns:</dt>
    211. 

  211.         <dd>a list of unique (multi)tags sorted by relevance</dd>
    212. 

  212.   </dl>
    213. 

  213. </td></tr></table>
    214. 

  214. </div>
    215. 

  215. <a name="__init__"></a>
    216. 

  216. <div>
    217. 

  217. <table class="details" border="1" cellpadding="3"
    218. 

  218.        cellspacing="0" width="100%" bgcolor="white">
    219. 

  219. <tr><td>
    220. 

  220.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    221. 

  221.   <tr valign="top"><td>
    222. 

  222.   <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
    223. 

  223.         <span class="sig-arg">weights</span>,
    224. 

  224.         <span class="sig-arg">multitag_size</span>=<span class="sig-default">3</span>)</span>
    225. 

  225.     <br /><em class="fname">(Constructor)</em>
    226. 

  226.   </h3>
    227. 

  227.   </td><td align="right" valign="top"
    228. 

  228.     ><span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.__init__">source&nbsp;code</a></span>&nbsp;
    229. 

  229.     </td>
    230. 

  230.   </tr></table>
    231. 

  231.   
    232. 

  232.   
    233. 

  233.   <dl class="fields">
    234. 

  234.     <dt>Parameters:</dt>
    235. 

  235.     <dd><ul class="nomargin-top">
    236. 

  236.         <li><strong class="pname"><code>weights</code></strong> - a dictionary of weights normalized in the interval [0,1]</li>
    237. 

  237.         <li><strong class="pname"><code>multitag_size</code></strong> - maximum size of tags formed by multiple unit tags</li>
    238. 

  238.     </ul></dd>
    239. 

  239.     <dt>Returns:</dt>
    240. 

  240.         <dd>a new <a href="tagger.tagger.Rater-class.html" 
    241. 

  241.           class="link">Rater</a> object</dd>
    242. 

  242.   </dl>
    243. 

  243. </td></tr></table>
    244. 

  244. </div>
    245. 

  245. <a name="create_multitags"></a>
    246. 

  246. <div>
    247. 

  247. <table class="details" border="1" cellpadding="3"
    248. 

  248.        cellspacing="0" width="100%" bgcolor="white">
    249. 

  249. <tr><td>
    250. 

  250.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    251. 

  251.   <tr valign="top"><td>
    252. 

  252.   <h3 class="epydoc"><span class="sig"><span class="sig-name">create_multitags</span>(<span class="sig-arg">self</span>,
    253. 

  253.         <span class="sig-arg">tags</span>)</span>
    254. 

  254.   </h3>
    255. 

  255.   </td><td align="right" valign="top"
    256. 

  256.     ><span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.create_multitags">source&nbsp;code</a></span>&nbsp;
    257. 

  257.     </td>
    258. 

  258.   </tr></table>
    259. 

  259.   
    260. 

  260.   
    261. 

  261.   <dl class="fields">
    262. 

  262.     <dt>Parameters:</dt>
    263. 

  263.     <dd><ul class="nomargin-top">
    264. 

  264.         <li><strong class="pname"><code>tags</code></strong> - a list of tags (respecting the order in the text)</li>
    265. 

  265.     </ul></dd>
    266. 

  266.     <dt>Returns:</dt>
    267. 

  267.         <dd>a list of multitags</dd>
    268. 

  268.   </dl>
    269. 

  269. </td></tr></table>
    270. 

  270. </div>
    271. 

  271. <a name="rate_tags"></a>
    272. 

  272. <div>
    273. 

  273. <table class="details" border="1" cellpadding="3"
    274. 

  274.        cellspacing="0" width="100%" bgcolor="white">
    275. 

  275. <tr><td>
    276. 

  276.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    277. 

  277.   <tr valign="top"><td>
    278. 

  278.   <h3 class="epydoc"><span class="sig"><span class="sig-name">rate_tags</span>(<span class="sig-arg">self</span>,
    279. 

  279.         <span class="sig-arg">tags</span>)</span>
    280. 

  280.   </h3>
    281. 

  281.   </td><td align="right" valign="top"
    282. 

  282.     ><span class="codelink"><a href="tagger.tagger-pysrc.html#Rater.rate_tags">source&nbsp;code</a></span>&nbsp;
    283. 

  283.     </td>
    284. 

  284.   </tr></table>
    285. 

  285.   
    286. 

  286.   
    287. 

  287.   <dl class="fields">
    288. 

  288.     <dt>Parameters:</dt>
    289. 

  289.     <dd><ul class="nomargin-top">
    290. 

  290.         <li><strong class="pname"><code>tags</code></strong> - a list of tags to be assigned a rating</li>
    291. 

  291.     </ul></dd>
    292. 

  292.   </dl>
    293. 

  293. </td></tr></table>
    294. 

  294. </div>
    295. 

  295. <br />
    296. 

  296. <!-- ==================== NAVIGATION BAR ==================== -->
    297. 

  297. <table class="navbar" border="0" width="100%" cellpadding="0"
    298. 

  298.        bgcolor="#a0c0ff" cellspacing="0">
    299. 

  299.   <tr valign="middle">
    300. 

  300. 

  301.   <!-- Tree link -->
    302. 

  302.       <th>&nbsp;&nbsp;&nbsp;<a
    303. 

  303.         href="module-tree.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>
    304. 

  304. 

  305.   <!-- Index link -->
    306. 

  306.       <th>&nbsp;&nbsp;&nbsp;<a
    307. 

  307.         href="identifier-index.html">Indices</a>&nbsp;&nbsp;&nbsp;</th>
    308. 

  308. 

  309.   <!-- Help link -->
    310. 

  310.       <th>&nbsp;&nbsp;&nbsp;<a
    311. 

  311.         href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>
    312. 

  312. 

  313.   <!-- Project homepage -->
    314. 

  314.       <th class="navbar" align="right" width="100%">
    315. 

  315.         <table border="0" cellpadding="0" cellspacing="0">
    316. 

  316.           <tr><th class="navbar" align="center"
    317. 

  317.             ><a class="navbar" target="_top" href="http://github.com/apresta/tagger">tagger</a></th>
    318. 

  318.           </tr></table></th>
    319. 

  319.   </tr>
    320. 

  320. </table>
    321. 

  321. <table border="0" cellpadding="0" cellspacing="0" width="100%%">
    322. 

  322.   <tr>
    323. 

  323.     <td align="left" class="footer">
    324. 

  324.     Generated by Epydoc 3.0.1 on Wed Jun  8 01:57:46 2011
    325. 

  325.     </td>
    326. 

  326.     <td align="right" class="footer">
    327. 

  327.       <a target="mainFrame" href="http://epydoc.sourceforge.net"
    328. 

  328.         >http://epydoc.sourceforge.net</a>
    329. 

  329.     </td>
    330. 

  330.   </tr>
    331. 

  331. </table>
    332. 

  332. 

  333. <script type="text/javascript">
    334. 

  334.   <!--
    335. 

  335.   // Private objects are initially displayed (because if
    336. 

  336.   // javascript is turned off then we want them to be
    337. 

  337.   // visible); but by default, we want to hide them.  So hide
    338. 

  338.   // them unless we have a cookie that says to show them.
    339. 

  339.   checkCookie();
    340. 

  340.   // -->
    341. 

  341. </script>
    342. 

  342. </body>
    343. 

  343. </html>
    344.