Hi Andrew, Thanks for your quick reply. I tried with e*t and that did not return any results. I am using Lucene 2.2. The full word elephant returned one hit as I am using the same analayzer for indexing and searching. I uploaded the java class I used for testing this. Thanks JB
Andrew Gilmartin-2 wrote: > > --- On Thu, 7/24/08, JBTech <[EMAIL PROTECTED]> wrote: > >> Is there a way to avoid stemming in certain cases? > > As a general rule, make the query intelligent and not the index. > Therefore, index your text verbatim. Small changes like changing terms to > lowercase and removing possessives are fine. You now have an index upon > which you can make intelligent queries. > > An intelligent query requires keeping track of several collections of > term-to-term(s) mappings. For example, stemmed-term to verbatim-term(s). > Now, convert the users search for "elephant is a big animal" into > something akin to > > ( (elephant^10) OR (A) OR (B) ) AND > ( (big^10) OR (C) ) AND > ( (animal^10) OR (D) ) > > Where A and B are other terms with the same stemming as elephant, C is > another term with the same stemming as big, and D is a another term with > the same stemming as animal. Adding the boost ensures that a verbatim > match pushes the document's rank higher and so ensure that what the user > asked for is closer to the top. > > This basic idea of making the queries more intelligent by broadening them > and boosting term weights gives you a lot of control over the query and > how results are ranked. The same control is not possible by making the > index more intelligent. > > Don't worry about Lucene's performance with complex queries. My experience > is that it is very fast. > > And to answer your specific question, search for "e*t" will work as is. > > -- Andrew > > > > > http://www.nabble.com/file/p18652365/Testing.java Testing.java -- View this message in context: http://www.nabble.com/issues-with-wildcard-search-and-snowball-english-analyzer-tp18641947p18652365.html Sent from the Lucene - General mailing list archive at Nabble.com.
