Question

我愿确保查询<代码>I.B.M.。我也要确保<代码> 可通过查询<条码>代号<>。

利用Solr,在分析和问询时间上,我能利用什么象征性和过滤器来取得这两种结果?

Answer 1

For I.B.M. => ibm
you would need a solr.WordDelimiterFilterFactory, which would strip special chars and catenate word and numbers

catenateWords=“1”将压缩字句,并将I.B.M改为IBM。

Dismemberment => dismember
Need to include a stemmer filter (e.g. solr.PorterStemFilterFactory, solr.EnglishMinimalStemFilterFactory) which would index the roots of the words and provide matches for words which have the same roots.

此外,你还可以使用sol。二级医院案例不敏感的配对厂(IBM和ibm),溶剂。 ASCIIFolding Filter 处理外国性质的工厂。

您可以永远使用SynonymFilterFactory ,以绘制你认为是同义词。

您可以在问答和索引时间都这样做,以便两者相匹配和转换,结果是一致的。

e.g. field type def -

<fieldType name="text_en_splitting" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="true">
  <!-- Index and Query time -->
  <analyzer type="index">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
    <filter class="solr.LowerCaseFilterFactory"/>
        <!-- Stemmer -->
    <filter class="solr.PorterStemFilterFactory"/>
  </analyzer>
  <analyzer type="query">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.PorterStemFilterFactory"/>
  </analyzer>
</fieldType>

友情链接