Hi Guys.
Apologies........ U got it bingo,Am trying to do something similar as u replied. But there is a glitch in the process If the search is done on the 'leaf_category' as u said with word such as 'CAMERA DIGITAL' instead of 'DIGITAL CAMERA' the resultant return hits will be ZERO '0'. Usage of SpanQuery for such conditions applied should return still the 1st document of 3. A permutation combination of words entered should result in the specific document being returned. with regards Karthik -----Original Message----- From: Miles Barr [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 09, 2005 7:10 PM To: java-user@lucene.apache.org Subject: RE: SPAN QUERY [HOW TO] It's not clear what you're trying to achieve. PhraseQuery and SpanNearQuery can help you find tokens that are close to each other. It you're using the standard analyzer, tokens are words. They won't help you group documents under a topic. You should setup some other fields in your Lucene document to hold category information. e.g. for document 1: text = ELECTRONICS DIGITAL CAMERA parent_category = ELECTRONICS leaf_category = DIGITAL CAMERA for document 2: text = ELECTRONICS DIGITAL CAMERA OPTICS parent_category = ELECTRONICS parent_category = DIGITAL CAMERA leaf_category = OPTICS Then search on the leaf_category. Make sure you setup the category fields to be type KEYWORD, i.e. not tokenized. On Wed, 2005-03-09 at 18:07 +0530, Karthik N S wrote: > Hi Guys > > Apologies.... > > Some body Please Help me for this Form > > > with regards > Karthik > > > -----Original Message----- > From: Miles Barr [mailto:[EMAIL PROTECTED] > Sent: Wednesday, March 09, 2005 3:02 PM > To: java-user@lucene.apache.org > Subject: Re: SPAN QUERY [HOW TO] > > > On Wed, 2005-03-09 at 14:52 +0530, Karthik N S wrote: > > The new Feature of lucene 'span query' really is interesting > > > > But need expert suggestions on achieveing the same. > > > > I have 3 documents > > > > Document 1 contains = ELECTRONICS DIGITAL CAMERA > > Document 2 contains = ELECTRONICS DIGITAL CAMERA 0PTICS > > Document 3 contains = ELECTRONICS DIGITAL CAMERA ACCESSIORIES > > > > > > > > search word = " DIGITAL CAMERA " > > > > Returned hits = 1st doc ONLY [ 2 and 3rd document should not be in > > the hit ] > > > > SpanQuery /PharseQuery ???? > > > > > > > > How would one achieve this ??? Please > > I've used span queries to boost the scores of results where words appear > close together. I'm not sure exactly what you're trying to achieve. All > three documents contain the search phrase, so both span and phrase > queries would return all the documents. > > Are you trying to setup a taxonomy? i.e. only display documents in the > category Electronics > Digital Camera, and not those in sub categories? > If this is the case you should try to build the categorisation at the > same time as the indexing process and either add explicit clauses in the > search query or filter afterwards. > > > -- Miles Barr <[EMAIL PROTECTED]> Runtime Collective Ltd. --------------------------------------------------------------------- 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]
