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<title>Xapian: API Documentation: xapian/weight.h File Reference</title>
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<p>Weighting scheme API.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1Weight.html">Xapian::Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Abstract base class for weighting schemes. <a href="classXapian_1_1Weight.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1BoolWeight.html">Xapian::BoolWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Class implementing a "boolean" weighting scheme. <a href="classXapian_1_1BoolWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1TfIdfWeight.html">Xapian::TfIdfWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing the tf-idf weighting scheme. <a href="classXapian_1_1TfIdfWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1BM25Weight.html">Xapian::BM25Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing the BM25 probabilistic formula. <a href="classXapian_1_1BM25Weight.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1BM25PlusWeight.html">Xapian::BM25PlusWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing the BM25+ probabilistic formula. <a href="classXapian_1_1BM25PlusWeight.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1TradWeight.html">Xapian::TradWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing the traditional probabilistic formula. <a href="classXapian_1_1TradWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1InL2Weight.html">Xapian::InL2Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the InL2 weighting scheme. <a href="classXapian_1_1InL2Weight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1IfB2Weight.html">Xapian::IfB2Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the IfB2 weighting scheme. <a href="classXapian_1_1IfB2Weight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1IneB2Weight.html">Xapian::IneB2Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the IneB2 weighting scheme. <a href="classXapian_1_1IneB2Weight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1BB2Weight.html">Xapian::BB2Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the BB2 weighting scheme. <a href="classXapian_1_1BB2Weight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1DLHWeight.html">Xapian::DLHWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the DLH weighting scheme, which is a representative scheme of the Divergence from Randomness Framework by Gianni Amati. <a href="classXapian_1_1DLHWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PL2Weight.html">Xapian::PL2Weight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the PL2 weighting scheme. <a href="classXapian_1_1PL2Weight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PL2PlusWeight.html">Xapian::PL2PlusWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing the PL2+ probabilistic formula. <a href="classXapian_1_1PL2PlusWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1DPHWeight.html">Xapian::DPHWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This class implements the DPH weighting scheme. <a href="classXapian_1_1DPHWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1LMWeight.html">Xapian::LMWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing the Language Model formula. <a href="classXapian_1_1LMWeight.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1CoordWeight.html">Xapian::CoordWeight</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classXapian_1_1Weight.html" title="Abstract base class for weighting schemes. ">Xapian::Weight</a> subclass implementing Coordinate Matching. <a href="classXapian_1_1CoordWeight.html#details">More...</a><br /></td></tr>
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<tr class="memdesc:namespaceXapian"><td class="mdescLeft"> </td><td class="mdescRight">The <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library. ">Xapian</a> namespace contains public interfaces for the <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library. ">Xapian</a> library. <br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Weighting scheme API. </p>
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Documentation for Xapian (version 1.4.3).<br>
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