> If i analyse this field type in analysis.jsp, the follwoing
> are the results
> if i give "running" its stems word to run which is fine
> If i give "machine" why is that it stems to "machin", now
> from where does
> this word come from
> If i give "revolutionary" it stems to "revolutionari", i
> thought it should
> stem to revolution.
Stemmers used in Information Retrieval are not for human consumption. Reducing
revolutionary to revolutionari do not change the fact that query revolutionary
will return documents containing revolutionary.
> How does stemming work?
> Does it reduces adverb to verb etc..., or we have to
> customize it.
Stemmers aim to remove inflectional suffixes from words. Snowball stemmers are
rule based stemmers. Rules and endings are defined. e.g. if ending s remove it.
apples -> apple
It will be difficult to customize existing snowball stemmers, i guess.
If you are looking for a less aggressive stemmer then you can use KStem.
