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 <tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">A query that generates the union of documents produced by its subqueries, and that scores each document with the maximum score for that document as produced by any subquery, plus a tie breaking increment for any additional matching subqueries. This is useful when searching for a word in multiple fields with different boost factors (so that the fields cannot be combined equivalently into a single search field). We want the primary score to be the one associated with the highest boost, not the sum of the field scores (as <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_boolean_query.html" title="A Query that matches documents matching boolean combinations of other queries, e.g. TermQuerys, PhraseQuerys or other BooleanQuerys. ">BooleanQuery</a> would give). If the query is "albino elephant" this ensures that "albino" matching one field and "elephant" matching another gets a higher score than "albino" matching both fields. To get this result, use both <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_boolean_query.html" title="A Query that matches documents matching boolean combinations of other queries, e.g. TermQuerys, PhraseQuerys or other BooleanQuerys. ">BooleanQuery</a> and <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a>: for each term a <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a> searches for it in each field, while the set of these <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a>'s is combined into a <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_boolean_query.html" title="A Query that matches documents matching boolean combinations of other queries, e.g. TermQuerys, PhraseQuerys or other BooleanQuerys. ">BooleanQuery</a>. The tie breaker capability allows results that include the same term in multiple fields to be judged better than results that include this term in only the best of those multiple fields, without confusing this with the better case of two different terms in the multiple fields.  <a href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html#details">More...</a><br/></td></tr>
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 <p>Definition at line <a class="el" href="_disjunction_max_query_8cs_source.html#l00021">21</a> of file <a class="el" href="_disjunction_max_query_8cs_source.html">DisjunctionMaxQuery.cs</a>.</p>

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	<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">A query that generates the union of documents produced by its subqueries, and that scores each document with the maximum score for that document as produced by any subquery, plus a tie breaking increment for any additional matching subqueries. This is useful when searching for a word in multiple fields with different boost factors (so that the fields cannot be combined equivalently into a single search field). We want the primary score to be the one associated with the highest boost, not the sum of the field scores (as <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_boolean_query.html" title="A Query that matches documents matching boolean combinations of other queries, e.g. TermQuerys, PhraseQuerys or other BooleanQuerys. ">BooleanQuery</a> would give). If the query is "albino elephant" this ensures that "albino" matching one field and "elephant" matching another gets a higher score than "albino" matching both fields. To get this result, use both <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_boolean_query.html" title="A Query that matches documents matching boolean combinations of other queries, e.g. TermQuerys, PhraseQuerys or other BooleanQuerys. ">BooleanQuery</a> and <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a>: for each term a <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a> searches for it in each field, while the set of these <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a>'s is combined into a <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_boolean_query.html" title="A Query that matches documents matching boolean combinations of other queries, e.g. TermQuerys, PhraseQuerys or other BooleanQuerys. ">BooleanQuery</a>. The tie breaker capability allows results that include the same term in multiple fields to be judged better than results that include this term in only the best of those multiple fields, without confusing this with the better case of two different terms in the multiple fields. <a href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html#details">More...</a><br/></td></tr>
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	<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Expert: the <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_weight.html" title="Expert: Calculate query weights and build query scorers. The purpose of Weight is to ensure searching...">Weight</a> for <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_disjunction_max_query.html" title="A query that generates the union of documents produced by its subqueries, and that scores each docume...">DisjunctionMaxQuery</a>, used to normalize, score and explain these queries. <br/></td></tr>
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	<p>Definition at line <a class="el" href="_disjunction_max_query_8cs_source.html#l00021">21</a> of file <a class="el" href="_disjunction_max_query_8cs_source.html">DisjunctionMaxQuery.cs</a>.</p>

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