Hi Koji, I have already used MLT parameters to refine the query but still I'd like to exclude additional terms. I was just going through some docs online and came across filterQuery mechanism. Won't specifying fq=~term1+~term2 do the job?
Thanks Paras Chopra On Tue, Aug 25, 2009 at 4:08 PM, Koji Sekiguchi <k...@r.email.ne.jp> wrote: > Hi Paras, > > > As I understand from StopFilter, > > it is a static method to exclude terms such as stop words. > > Correct. As far as I know, to control what words MLT component > chooses for generating BooleanQuery, what you can do is > that you specify the following parameters: > > mlt.mintf > Minimum Term Frequency - the frequency below which terms will be ignored in > the source doc. > > mlt.mindf > Minimum Document Frequency - the frequency at which words will be ignored > which do not occur in at least this many docs. > > mlt.minwl > minimum word length below which words will be ignored. > > mlt.maxwl > maximum word length above which words will be ignored. > > mlt.maxqt > maximum number of query terms that will be included in any generated query. > > If these parameters are unusable for your case, I don't think > you can exclude certain terms OOTB. > > Koji > > > > Paras Chopra wrote: > >> Hi Koji, >> Thank you for your reply. Actually, the terms I would like to exclude >> would >> be based on the document I use for MoreLikeThis Query. As I understand >> from StopFilter, >> it is a static method to exclude terms such as stop words. >> >> My problem is that I want to return theme/area specific results for >> MoreLikeThis. Usually, MoreLikeThis picks up nouns such as names and >> returns >> results based on them as it finds them as interesting. I would rather like >> it to return results based on general theme of a text. So, I was wondering >> if I can prevent MoreLikeThis to exclude results containing a list of >> detected nouns that I provide per document. >> >> Thanks, >> Paras Chopra >> >> On Tue, Aug 25, 2009 at 11:30 AM, Koji Sekiguchi <k...@r.email.ne.jp> >> wrote: >> >> >> >>> Paras Chopra wrote: >>> >>> >>> >>>> Hi All, >>>> I am tinkering with MoreLikeThis component of Solr and had a particular >>>> use >>>> case where I would like to exclude certain terms from consideration >>>> while >>>> MoreLikeThis makes a query vector out of a document. Is it possible with >>>> Solr? I searched for this in the documentation but wasn't able to find a >>>> method. >>>> >>>> Thanks in advance, >>>> Paras Chopra >>>> >>>> >>>> >>>> >>>> >>> How about using StopFilter that excludes certain terms on a field, >>> then specify the field for mlt.fl parameter when executing MLT? >>> >>> >>> Koji >>> >>> >>> >>> >>> >> >> >> >> > > -- www.paraschopra.com
