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Posted to solr-commits@lucene.apache.org by Apache Wiki <wi...@apache.org> on 2009/01/31 08:33:26 UTC
[Solr Wiki] Trivial Update of "AnalyzersTokenizersTokenFilters" by AnuragGoel
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The following page has been changed by AnuragGoel:
http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters
The comment on the change is:
Fixed typo
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== Stemming ==
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.
+ * [http://tartarus.org/~martin/PorterStemmer/ Porter] or Reduction stemming — A transforming algorithm that reduces any of the forms of a word such as "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.