Solr 搜索 with/without 连字符

Question

我在尝试使用带连字符和不带连字符的单词获取相关搜索结果时遇到问题。我创建了两份文档，一份 "wifi" 和一份 "wi-fi" 在 "text" 字段中。

搜索"wifi"时，两个文档都出现在搜索结果中，这很好。搜索"wi-fi"时，只有"wi-fi"的文档出现在搜索结果中。

这是我的配置：

<field name="text" type="text" indexed="true" stored="true" omitNorms="true" />

<fieldType name="text" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="true">
  <analyzer type="index">
      <tokenizer class="solr.WhitespaceTokenizerFactory"/>
      <charFilter class="solr.HTMLStripCharFilterFactory"/>
      <filter class="solr.ASCIIFoldingFilterFactory" />
      <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
      <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1" preserveOriginal="1" />
      <filter class="solr.LowerCaseFilterFactory"/>
      <filter class="solr.PorterStemFilterFactory"/>
      <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
  </analyzer>
  <analyzer type="query">
      <tokenizer class="solr.WhitespaceTokenizerFactory"/>
      <charFilter class="solr.HTMLStripCharFilterFactory"/>
      <filter class="solr.ASCIIFoldingFilterFactory" />
      <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
      <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1" preserveOriginal="1" />
      <filter class="solr.LowerCaseFilterFactory"/>
      <filter class="solr.PorterStemFilterFactory"/>
      <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
  </analyzer>
</fieldType>

这是分析的结果：https://www.evernote.com/shard/s7/sh/f1bab83a-7fd5-4bf3-9e67-239ea0c71441/98b1103577638734fb9335f755591b82/deep/0/Solr-Admin-(jeanfrancoiscote.egzakt.com).png

搜索时查询的调试 "wi-fi"。我不知道为什么它找不到两个文件:

<?xml version="1.0" encoding="UTF-8"?>
<response>

<lst name="responseHeader">
  <int name="status">0</int>
  <int name="QTime">1</int>
  <lst name="params">
    <str name="debugQuery">true</str>
    <str name="indent">true</str>
    <str name="q">wi-fi</str>
    <str name="wt">xml</str>
  </lst>
</lst>
<result name="response" numFound="1" start="0">
  <doc>
    <int name="id">1869</int>
    <str name="route">@sujet_simple?sujet_id=1869&amp;slug=wi-fi</str>
    <str name="name">Wi-fi</str>
    <str name="text">&lt;p&gt;
    Wi-fi&lt;/p&gt;
</str>
    <long name="_version_">1493472450933948416</long></doc>
</result>
<lst name="debug">
  <str name="rawquerystring">wi-fi</str>
  <str name="querystring">wi-fi</str>
  <str name="parsedquery">MultiPhraseQuery(text:"(wi-fi wi) (fi wifi)")</str>
  <str name="parsedquery_toString">text:"(wi-fi wi) (fi wifi)"</str>
  <lst name="explain">
    <str name="1869">
30.33298 = (MATCH) weight(text:"(wi-fi wi) (fi wifi)" in 0) [DefaultSimilarity], result of:
  30.33298 = score(doc=0,freq=1.0 = phraseFreq=1.0
), product of:
    0.99999994 = queryWeight, product of:
      30.332981 = idf(), sum of:
        7.684612 = idf(docFreq=1, maxDocs=1600)
        7.684612 = idf(docFreq=1, maxDocs=1600)
        7.684612 = idf(docFreq=1, maxDocs=1600)
        7.2791467 = idf(docFreq=2, maxDocs=1600)
      0.032967415 = queryNorm
    30.332981 = fieldWeight in 0, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = phraseFreq=1.0
      30.332981 = idf(), sum of:
        7.684612 = idf(docFreq=1, maxDocs=1600)
        7.684612 = idf(docFreq=1, maxDocs=1600)
        7.684612 = idf(docFreq=1, maxDocs=1600)
        7.2791467 = idf(docFreq=2, maxDocs=1600)
      1.0 = fieldNorm(doc=0)
</str>
  </lst>
  <str name="QParser">LuceneQParser</str>
  <lst name="timing">
    <double name="time">1.0</double>
    <lst name="prepare">
      <double name="time">0.0</double>
      <lst name="query">
        <double name="time">0.0</double>
      </lst>
      <lst name="facet">
        <double name="time">0.0</double>
      </lst>
      <lst name="mlt">
        <double name="time">0.0</double>
      </lst>
      <lst name="highlight">
        <double name="time">0.0</double>
      </lst>
      <lst name="stats">
        <double name="time">0.0</double>
      </lst>
      <lst name="debug">
        <double name="time">0.0</double>
      </lst>
    </lst>
    <lst name="process">
      <double name="time">1.0</double>
      <lst name="query">
        <double name="time">0.0</double>
      </lst>
      <lst name="facet">
        <double name="time">0.0</double>
      </lst>
      <lst name="mlt">
        <double name="time">0.0</double>
      </lst>
      <lst name="highlight">
        <double name="time">0.0</double>
      </lst>
      <lst name="stats">
        <double name="time">0.0</double>
      </lst>
      <lst name="debug">
        <double name="time">1.0</double>
      </lst>
    </lst>
  </lst>
</lst>
</response>

感谢您的帮助。

Answer 1

您需要调整架构的分析端。 debugQuery=true 和 Solr 分析工具是您发现此类错误的好帮手。

根据您的配置搜索 wifi 会产生以下查询：

wifi
"parsedquery_toString": "text:wifi",

和 wi-fi

wi-fi
"parsedquery_toString": "text:\"(wi-fi wi) (fi wifi)\"",

我们配置的分析端生成 none 个 wi-fi 匹配项。

如果我们改变分析端的过滤器不产生单词部分：

  <filter class="solr.WordDelimiterFilterFactory" generateWordParts="0" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1" preserveOriginal="1" />

我们得到以下为 wifi 生成的搜索短语

parsedquery_toString": "text:wifi",

对于 Wi-Fi：

"parsedquery_toString": "text:wi-fi text:wifi"

匹配分析工具中 wi-fi 和 wifi 的索引词

wi-fi, wi, fi, wifi
wifi

注意：文本是本例中的默认字段

Solr 搜索 with/without 连字符

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