Spans do care about the order of words, so that might help.... Erick
On Tue, Oct 12, 2010 at 11:23 PM, Ron Mayer <r...@0ape.com> wrote: > Erick Erickson wrote: > > You can do some interesting things with payloads. You could index a > > particular value as the payload that identified the "kind" of word it > was, > > where "kind" is something you define. Then at query time, you could > > boost depending on what part kind of word you identified it as in both > > the query and at indexing time. > > > > But I can't even imagine how one would go about supporting this in a > > general search engine. This kind of thing seems far too domain > > specific..... > > Well, the "pf2" and "pf3" parameters in edismax come pretty close. > > For example, for the search query "red baseball cap black leather jacket", > a "pf2" with no "phrase slop", combined with a "pf2" with a "phrase slop of > 3" > will do a pretty good job at finding "red caps" and "black jackets" > and "baseball caps" and "leather jackets" before it'll find > "red baseball jackets" and "leather caps". > > All it depended on is the convention that in english someone'll probably > put adjectives before nouns in both the query and the document's text. > > The one annoyance is that I think the phrase slop doesn't care much > about the order of words...... > > > > > On Sun, Oct 10, 2010 at 8:50 PM, Ron Mayer <r...@0ape.com> wrote: > > > >> Walter Underwood wrote: > >>> I think this is a bad idea. The tf.idf algorithm will already put a > >> higher weight on "hammers" than on "blue", because "hammers" will be > more > >> rare than "blue". Plus, you are making huge assumptions about the > queries. > >> In a search for "Canon camera", "Canon" is an adjective, but it is the > >> important part of the query. > >>> Have you looked at your query logs and which queries are successful and > >> which are not? > >>> Don't make radical changes like this unless you can justify them from > the > >> logs. > >> > >> The one radical change I'd like in the area of adjectives in noun > clauses > >> is if > >> more weight were put when the adjectives apply to the appropriate noun. > >> > >> For example, a search for: > >> 'red baseball cap black leather jacket' > >> should find a doc with "the guy wore a red cap, blue jeans, and a > leather > >> jacket" > >> before one that says "the guy wore a black cap, leather pants, and a red > >> jacket". > >> > >> > >> The closest I've come at doing this was to use a variety of "phrase > slop" > >> boosts simultaneously - so that "red [any_few_words] cap" "baseball cap" > >> "leather jacket", "black [any_few_words] jacket" all add boosts to the > >> score. > >> > >> > >> > >> > >> > >> > >> > >>> wunder > >>> > >>> On Oct 4, 2010, at 8:38 PM, Otis Gospodnetic wrote: > >>> > >>>> Hi, > >>>> > >>>> If you want "blue" to be used in search, then you should not treat it > as > >> a > >>>> stopword. > >>>> > >>>> Re payloads: http://search-lucene.com/?q=payload+score > >>>> and http://search-lucene.com/?q=payload+score&fc_type=wiki (even > >> better, look at > >>>> hit #1) > >>>> > >>>> Otis > >>>> ---- > >>>> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch > >>>> Lucene ecosystem search :: http://search-lucene.com/ > >>>> > >>>> > >>>> > >>>> ----- Original Message ---- > >>>>> From: Hasnain <hasn...@hotmail.com> > >>>>> To: solr-user@lucene.apache.org > >>>>> Sent: Mon, October 4, 2010 9:50:46 AM > >>>>> Subject: Re: Prioritizing advectives in solr search > >>>>> > >>>>> > >>>>> Hi Otis, > >>>>> > >>>>> Thank you for replying, unfortunately Im unable to fully > grasp > >> what > >>>>> you are trying to say, can you please elaborate what is payload with > >>>>> adjective terms? > >>>>> > >>>>> also Im using stopwords.txt to stop adjectives, adverbs and verbs, > now > >> when > >>>>> I search for "Blue hammers", solr searches for "blue hammers" and > >> "hammers" > >>>>> but not "blue", but the problem here is user can also search for > just > >>>>> "Blue", then it wont search for anything... > >>>>> > >>>>> any suggestions on this?? > >>>>> > >>>>> -- > >>>>> View this message in context: > >>>>> > >> > http://lucene.472066.n3.nabble.com/Prioritizing-adjectives-in-solr-search-tp1613029p1629725.html > >>>>> Sent from the Solr - User mailing list archive at Nabble.com. > >>>>> > >>> > >>> > >>> > >> > > > >
