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| Fuzzifies ALL terms provided as strings and then picks the best n differentiating terms. | |
| In effect this mixes the behaviour of FuzzyQuery and MoreLikeThis but with special consideration | |
| of fuzzy scoring factors. | |
| This generally produces good results for queries where users may provide details in a number of | |
| fields and have no knowledge of boolean query syntax and also want a degree of fuzzy matching and | |
| a fast query. | |
| For each source term the fuzzy variants are held in a BooleanQuery with no coord factor (because | |
| we are not looking for matches on multiple variants in any one doc). Additionally, a specialized | |
| TermQuery is used for variants and does not use that variant term's IDF because this would favour rarer | |
| terms eg misspellings. Instead, all variants use the same IDF ranking (the one for the source query | |
| term) and this is factored into the variant's boost. If the source query term does not exist in the | |
| index the average IDF of the variants is used. | |
| </div><p /><b>Namespace:</b> <a href="5715bafd-c3a8-9ed0-225c-3c4cececbdc0.htm">Lucene.Net.Search</a><br /><b>Assembly:</b> <span sdata="assembly">Lucene.Net.Contrib.Queries</span> (in Lucene.Net.Contrib.Queries.dll) Version: 2.9.2.0 (2.9.2)<h1 class="heading"><span onclick="ExpandCollapse(syntaxToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(syntaxToggle, event)" tabindex="0"><img id="syntaxToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Syntax</span></h1><div id="syntaxSection" class="section" name="collapseableSection" style=""><div id="syntaxCodeBlocks" class="code"><span codeLanguage="CSharp"><table><tr><th>C#</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">class</span> <span class="identifier">FuzzyLikeThisQuery</span> : <a href="92f5b96d-ab32-4c16-79a2-bdc2e707f1fe.htm">Query</a></pre></td></tr></table></span><span codeLanguage="VisualBasicDeclaration"><table><tr><th>Visual Basic</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">Class</span> <span class="identifier">FuzzyLikeThisQuery</span> _ | |
| <span class="keyword">Inherits</span> <a href="92f5b96d-ab32-4c16-79a2-bdc2e707f1fe.htm">Query</a></pre></td></tr></table></span><span codeLanguage="ManagedCPlusPlus"><table><tr><th>Visual C++</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">FuzzyLikeThisQuery</span> : <span class="keyword">public</span> <a href="92f5b96d-ab32-4c16-79a2-bdc2e707f1fe.htm">Query</a></pre></td></tr></table></span></div></div><h1 class="heading"><span onclick="ExpandCollapse(familyToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(familyToggle, event)" tabindex="0"><img id="familyToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Inheritance Hierarchy</span></h1><div id="familySection" class="section" name="collapseableSection" style=""><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>Object</a><br /> <a href="92f5b96d-ab32-4c16-79a2-bdc2e707f1fe.htm">Lucene.Net.Search<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>Query</a><br /> <span class="selflink">Lucene.Net.Search<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>FuzzyLikeThisQuery</span><br /></div><h1 class="heading"><span onclick="ExpandCollapse(seeAlsoToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(seeAlsoToggle, event)" tabindex="0"><img id="seeAlsoToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />See Also</span></h1><div id="seeAlsoSection" class="section" name="collapseableSection" style=""><div class="seeAlsoStyle"><a href="a61f401a-d45e-60a4-9e46-edf8a4ce34e5.htm">FuzzyLikeThisQuery Members</a></div><div class="seeAlsoStyle"><a href="5715bafd-c3a8-9ed0-225c-3c4cececbdc0.htm">Lucene.Net.Search Namespace</a></div></div></div><div id="footer"><div class="footerLine"><img width="100%" height="3px" src="../icons/footer.gif" alt="Footer image" title="Footer image" /></div><A NAME="feedback"></A><span id="fb" class="feedbackcss"></span></div></div></body></html> |