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From Priyanka Tufchi <priyanka.tuf...@launchship.com>
Subject Re: Boolean Search Query is not workng
Date Sat, 24 Jan 2015 06:49:36 GMT
Hi Pranab/All

I totally Agree with you but Atleast it should search for the given query
and give the document related to it.

I Gave Query : C#,dotnet


 Documents Taken:

1,  jdbc
2  Java dotNet
3   java  apache
4  dotNet  C#
5   java
                 6  java  apache dotNet C# MVC
7 jakarta
8   apache
9 java  apache dotNet C# MVC  tomcat
               10 java  apache dotNet

And Output which it gave : No Of hits0
How can it possible  as 4 no doc has exact match of query ?

If any one has working sample code of boolean Query plz share ... that
would be really helpful


Thanks


On Fri, Jan 23, 2015 at 9:01 PM, parnab kumar <parnab.2007@gmail.com> wrote:

> Hi,
>
>      While indexing , a norm value is calculated for each field  and
> injected in the index. This norm value is used as field level boosting
> which is also multiplied with other factors like tf-idf and query level
> boost which you specify with setBoost. so you see setting boosting is one
> of the several factors. Moreover, the ranking model used also influences
> the scoring. Lucene default ranking which is traditional vector space model
> is known to bias short documents. Experiment with BM 25 also.
>
> Additionally, if you are used to using Solr, try using Dismax query parser
> which is known to address most of the limitations of the default lucene
> query parser and scoring mechanism.
>
>
> Using Luke.. check the norm for each fields. To prevent norms to be
> injected during indexing ... index with option No Norms.
>
> Thanks,
> Parnab..
> CSE, IIT-KGP
> BIS, UCC, Ireland
>
> On Fri, Jan 23, 2015 at 2:54 PM, Rajendra Rao <rajendra.rao@launchship.com
> >
> wrote:
>
> > Hello
> > Reply to the mail, sent by Nitin We tried and this is what we got :
> >
> > My query was dotNet^10.0 Resume:jdbc Resume:C# Resume:MVC
> >
> > Documents:
> > .1. java jdbc
> > 2.Java dotNet
> > 3.java jdbc apache
> > 4.java dotNet
> > 5.java
> >          6java jdbc apache dotNet C# MVC
> >          7.jakarta
> > 8",apache
> > 9.java jdbc apache dotNet C# MVC  tomcat;
> >         10java jdbc apache dotNet",
> >
> > and result is doc id.1)  score :0.031800564  which is unexpected as
> > weightage is given to Dotnet
> >
> > Thanks
> >
> >
> >
> >
> > On Fri, Jan 23, 2015 at 4:34 PM, Ian Lea <ian.lea@gmail.com> wrote:
> >
> > > Use IndexSearcher.explain() to help figure out what matched, why.  And
> > > watch out for typos: jakarta != jakarata.
> > >
> > > If you still can't figure it out, post here a very small completely
> > > self-contained program or test case, using RAMDirectory, that
> > > demonstrates the problem.
> > >
> > >
> > > --
> > > Ian.
> > >
> > >
> > > On Fri, Jan 23, 2015 at 10:27 AM, Priyanka Tufchi
> > > <priyanka.tufchi@launchship.com> wrote:
> > > > Hi Ian
> > > >
> > > > I tried with what u sent
> > > >
> > > > Query-java~5 jakarta~5 apache  tomcat
> > > > Document : "1", "java jakarta tomcat"
> > > >  "2", java jakarata""
> > > > "3", "java jakarta  apache"
> > > >
> > > >  Score  : 1 :0.27094576
> > > > 3 :0.27094576
> > > > 2 :0.010494952
> > > >
> > > >
> > > > If we go  by query it is giving same score ..It is not working.
> > > >
> > > > Thanks
> > > > Priyanka
> > > >
> > > >
> > > > On Fri, Jan 23, 2015 at 3:19 PM, Ian Lea <ian.lea@gmail.com> wrote:
> > > >
> > > >> How about "home~10 house~10 flat". See
> > > >> http://lucene.apache.org/core/4_10_3/queryparser/index.html
> > > >>
> > > >>
> > > >> --
> > > >> Ian.
> > > >>
> > > >>
> > > >> On Fri, Jan 23, 2015 at 7:17 AM, Priyanka Tufchi
> > > >> <priyanka.tufchi@launchship.com> wrote:
> > > >> > Hi ALL
> > > >> >
> > > >> > I am  working on a project which uses lucene for searching .
I am
> > > >> > struggling with boolean based Query : Actual Scenario is
> > > >> >
> > > >> > e.g
> > > >> >  In Query, if I give house home flat
> > > >> >  then
> > > >> >  inside It should search house or home or flat  but I want to
give
> > > them
> > > >> > with weightage  like house and home  should get high weigh and
> flat
> > > >> should
> > > >> > get less then rest.
> > > >> > If document contain "Home"  .Lucene search should not go for
house
> > > and
> > > >> > flat.
> > > >> >
> > > >> > I searched on Internet for some good stuff but not able to find
> any
> > > code
> > > >> > sample or proper syntax for reference .
> > > >> >
> > > >> >
> > > >> > Thanks
> > > >> > Priyanka
> > > >> >
> > > >> > --
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