多术语 solr 同义词问题

Question

我定义的同义词如下： facebook,fb,face book, face bk

现在当我搜索 facebook 时，解析的查询是

<str name="parsedquery_toString">
    text:facebook text:fb text:face text:face text:book text:bk
</str>

但是如果我搜索面子书，那么解析后的查询是

<str name="parsedquery_toString">
    text:face text:book
</str>

两个关键字的解析查询不应该相同吗？

这是我的配置片段：

<fieldType name="text_en" class="solr.TextField" positionIncrementGap="100">
  <analyzer type="index">
    <tokenizer class="solr.StandardTokenizerFactory"/>       
    <filter class="solr.StopFilterFactory"
            ignoreCase="true"
            words="lang/stopwords_en.txt"
            enablePositionIncrements="true"
            />
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EnglishPossessiveFilterFactory"/>
    <filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
    <filter class="solr.PorterStemFilterFactory"/>
  </analyzer>

  <analyzer type="query">
    <tokenizer class="solr.StandardTokenizerFactory"/>
    <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true" />
    <filter class="solr.StopFilterFactory"
            ignoreCase="true"
            words="lang/stopwords_en.txt"
            enablePositionIncrements="true"
            />
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EnglishPossessiveFilterFactory"/>
    <filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
    <filter class="solr.PorterStemFilterFactory"/>
  </analyzer>
</fieldType>

请查找synonym.txt

的内容

#some test synonym mappings unlikely to appear in real input text
aaafoo => aaabar
bbbfoo => bbbfoo bbbbar
cccfoo => cccbar cccbaz
fooaaa,baraaa,bazaaa

# Some synonym groups specific to this example
GB,gib,gigabyte,gigabytes
MB,mib,megabyte,megabytes
facebook,fb,face book, face bk
Television, Televisions, TV, TVs
#notice we use "gib" instead of "GiB" so any WordDelimiterFilter coming
#after us won't split it into two words.

# Synonym mappings can be used for spelling correction too
pixima => pixma

Answer 1

这是 Solr/Lucene 中的一个众所周知的问题，您可以在以下位置找到更多相关信息：

the lucene ticket
this blog post，请参阅标题为 Multi-word synonyms won't be matched in queries

如果你想解决这个问题，你有几个选择：

应用以上两个资源中提到的几个 plugings/parsers 之一。不利的是，每次升级 solr 等时都必须重做这些工作。
将同义词移动到索引时间。无论如何，这是首选，尽管它有其自身的缺点。

多术语 solr 同义词问题

Multi term solr synonym issue

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