I think Shane is refering to Global Context Analysis (vs. Local Context Analysis), which refers to a statistical anlisys of the context (sourrounding windows) around noun-phrases from the index for automatic thesauri construction and query expansion.
For more info, read the SIGIR'96 paper from Xu and Croft: http://citeseer.ifi.unizh.ch/cache/papers/cs/508/http:zSzzSzwww.cs.umass.edu zSz~xuzSzsigir96-final.pdf/xu96query.pdf Shane: In principle, Lucene does provide all the tools needed to perform GCA and LCA but there is nothing built directly in the API do perform these types of analysis. I've done some work in this area (more on variants of LCA) so if you provide me with more information on what you are trying to achieve, I might be able to help you. -- Joaquin -----Original Message----- From: Erik Hatcher [mailto:[EMAIL PROTECTED] Sent: Thursday, September 01, 2005 12:49 PM To: java-dev@lucene.apache.org Subject: Re: Global Analysis possible in Lucene? Shane - could you give us some details on what Global Analysis is and how it relates to full-text searching? I googled for it and came up with some heavy duty mathematical stuff, but did not see a direct relationship with information retrieval. Erik On Sep 1, 2005, at 9:36 AM, Shane O'Sullivan wrote: > Hi, > > Does anyone know if Lucene supports Global Analysis? I haven't seen > any documentation on it. > > Thanks > > Shane O'Sullivan > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
