带/不带连字符的 Solr 搜索

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。我在“文本”字段中创建了两个文档，一个带有“wifi”，一个带有“wi-fi”。

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，搜索结果中只会出现带有“wi-fi”的文档。

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>

以下是分析的结果：https : //www.evernote.com/shard/s7/sh/f1bab83a-7fd5-4bf3-9e67-239ea0c71441/98b1103577638734fb9335f755591/b8034fb9335f7555591/b8034fb9335f7555591/b82 ).png

搜索“wi-fi”时的查询调试。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>

谢谢你的帮助。

Answer 1

您需要调整架构的分析方面。debugQuery=true 和 Solr 分析工具是查找此类错误的好帮手。

根据您的配置，搜索 wifi 会产生以下查询：

wifi
"parsedquery_toString": "text:wifi",

和无线网络

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

我们的配置的分析端没有生成 wi-fi 的匹配项。

如果我们更改分析端的过滤器以不生成单词部分：

  <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",

对于无线网络：

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

与分析工具中 wi-fi 和 wifi 的索引术语相匹配

wi-fi, wi, fi, wifi
wifi

注意：在此示例中，文本是我们的默认字段