solr-跳过返回与原始搜索相同文档的建议

Question

我有搜索建议工作得很好，我喜欢我得到建议，即使原始关键字返回结果（如果我们的集合中有拼写错误的文档）。但是，通常情况下，我会收到返回完全相同结果的建议。前。我搜索黄色薄荷罐，我得到"你的意思是黄色薄荷罐？"

有没有办法删除返回与原始术语相同结果的建议？

我正在使用solr4.6.0 这是solrconfig的信息。xml

<searchComponent name="spellcheck" class="solr.SpellCheckComponent">
        <str name="queryAnalyzerFieldType">text_general</str>
        <!-- a spellchecker built from a field of the main index -->
        <lst name="spellchecker">
          <str name="name">default</str>
          <str name="field">spell2</str>
          <str name="classname">solr.DirectSolrSpellChecker</str>
          <!-- the spellcheck distance measure used, the default is the internal levenshtein -->
          <str name="distanceMeasure">internal</str>
          <!-- minimum accuracy needed to be considered a valid spellcheck suggestion -->
          <float name="accuracy">0.1</float>
          <!-- the maximum #edits we consider when enumerating terms: can be 1 or 2 -->
          <int name="maxEdits">2</int>
          <!-- the minimum shared prefix when enumerating terms -->
          <int name="minPrefix">0</int> <!-- if set to 1, must start with same letter -->
          <!-- maximum number of inspections per result. -->
          <int name="maxInspections">5</int>
          <!-- minimum length of a query term to be considered for correction -->
          <int name="minQueryLength">4</int>
          <!-- maximum threshold of documents a query term can appear to be considered for correction -->
          <float name="maxQueryFrequency">0.01</float>
        </lst>
        <!-- a spellchecker that can break or combine words.  See "/spell" handler below for usage -->
        <lst name="spellchecker">
          <str name="name">wordbreak</str>
          <str name="classname">solr.WordBreakSolrSpellChecker</str>
          <str name="field">spell2</str>
          <str name="combineWords">true</str>
          <str name="breakWords">true</str>
          <int name="maxChanges">10</int>
          <str name="buildOnCommit">true</str>
          <int name="minBreakLength">3</int>
        </lst>
      </searchComponent>

     <requestHandler name="/spell" class="solr.SearchHandler" startup="lazy">
        <lst name="defaults">
            <str name="echoParams">none</str>
           <int name="rows">10</int>
          <str name="df">contents</str>
          <str name="defType">edismax</str>
          <str name="spellcheck.dictionary">default</str>
          <str name="spellcheck.dictionary">wordbreak</str>
          <str name="spellcheck">on</str>
          <str name="spellcheck.extendedResults">false</str>       
          <str name="spellcheck.count">10</str>
          <str name="spellcheck.alternativeTermCount">25</str>
          <str name="spellcheck.maxResultsForSuggest">25</str>
          <str name="spellcheck.collate">true</str>
          <str name="spellcheck.maxCollationTries">10</str>
          <str name="spellcheck.maxCollations">5</str>         
          <str name="spellcheck.onlyMorePopular">false</str>
          <str name="spellcheck.collateParam.defType">dismax</str>
        </lst>
        <arr name="last-components">
          <str>spellcheck</str>
        </arr>
      </requestHandler>

这是来自schema的信息。xml

 <fieldType name="text_general" class="solr.TextField" positionIncrementGap="100">
      <analyzer type="index">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
    <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
        <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
      <analyzer type="query">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
         <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
        <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
    </fieldType>

<field name="spell2" type="text_general" indexed="true" stored="false" required="false" multiValued="true" /> 

示例查询 - http://localhost:8985/solr/(collection)/spell?q=yellow%20buttermints 申报表

<str name="collation">yellow (butter mints)</str> 
  <str name="collation">yellow buttermint</str> 

"yellow buttermints"和"yellow buttermint"返回相同的结果。

Answer 1

我不认为有一个明确的方法来保证这一点。但这肯定会有所帮助 -

1. 在查询和索引时添加此过滤器-EnglishMinimalStemFilterFactory

   https://cwiki.apache.org/confluence/display/solr/Filter+Descriptions#FilterDescriptions-EnglishMinimalStemFilter

2. 我不确定在这种情况下SynonymFilterFactory是否会如何工作。你也可以不用它试试