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The following page has been changed by HarryWagner: http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters ------------------------------------------------------------------------------ == Stemming == - There are two types of stemming strategies: + There are three types of stemming strategies: * [http://tartarus.org/~martin/PorterStemmer/ Porter] or Reduction stemming — A transforming algorithm that reduces any of the forms of a word such "runs, running, ran", to its elemental root e.g., "run". Porter stemming must be performed ''both'' at insertion time and at query time. * Expansion stemming — Takes a root word and 'expands' it to all of its various forms — can be used ''either'' at insertion time ''or'' at query time. One way to approach this is by using the [#SynonymFilter SynonymFilterFactory] + * [wiki:/Kstem KStem], an alternative to Porter for developers looking for a less agressive stemmer. == Analyzers ==
