如何在Solr中配置词干？

Question

我添加到索尔索引:"美国".当我搜索"美国"时,没有结果.

如何配置schema.xml以获得结果？

目前的配置:

<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
            <analyzer type="index">
                <tokenizer class="solr.WhitespaceTokenizerFactory" />
                <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true" />
                <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
                <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" />
                <filter class="solr.LowerCaseFilterFactory" />
                <filter class="solr.EnglishPorterFilterFactory" protected="protwords.txt" />
                <filter class="solr.RemoveDuplicatesTokenFilterFactory" />
                <filter class="solr.PorterStemFilterFactory"/>
            </analyzer>
            <analyzer type="query">
                <tokenizer class="solr.WhitespaceTokenizerFactory" />
                <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true" />
                <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
                <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" />
                <filter class="solr.LowerCaseFilterFactory" />
                <filter class="solr.EnglishPorterFilterFactory" protected="protwords.txt" />
                <filter class="solr.RemoveDuplicatesTokenFilterFactory" />
                <filter class="solr.PorterStemFilterFactory"/>
            </analyzer>
        </fieldType>

Answer 1

为什么你会有两个词干器？
尝试EnglishPorterFilterFactory从两种分析器类型中删除（已弃用），重建索引，然后尝试搜索American是否会产生America。

如果这不起作用，您可以尝试的另一件事是删除两个词干过滤器并SnowballPorterFilterFactory添加language="English"。