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
