Re: Weighted Search by Field using MultiFieldQueryParser

2003-06-17 Thread Tatu Saloranta 
On Tuesday 17 June 2003 05:43, Kevin L. Cobb wrote:
 I have an index that has three fields in it. When I do a search using
 MultiFieldQueryParser, the search applies the same importance (weight)
 to each of the fields. BUT, what if I want to apply a different weight
 to each field, i.e. I want to consider found terms from certain fields
 as less important than others. I have applied an algorithm to help me
 do this, which involves searching each field separately and then
 recombining the results into a single collection, but hate to reinvent
 the wheel if I don't have to.

Have you looked at MultiFieldQueryParser source? It's a very simple class, and
modifying it (making a new class) should be easy; pass in not only field names 
but also weights to apply?
(as a sidenote, MultiFieldQueryParser does some unnecessary work as is... it 
seems to re-parse same query once for each field, could just clone it)

-+ Tatu +-



-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

RE: Weighted Search by Field using MultiFieldQueryParser

2003-06-17 Thread Otis Gospodnetic 
Ah!  Sorry about confusion.

Otis

--- Kevin L. Cobb [EMAIL PROTECTED] wrote:
 Yes . . . but you suggested that I post it to the User group (as
 opposed
 to the Dev group).
 
  
 ~
 Kevin L Cobb, MT(ASCP), SCJP2
 Senior Software Engineer
 Emergint, Inc.
 501 E Broadway, Suite 250
 Louisville, KY 40202
 [EMAIL PROTECTED]
 502.852.1423
 502.852.1589 fax
  
 The preceding e-mail message and attachments, if any, contains
 information that is confidential and qualifies as such under the
 Definition of Confidential Information in the Non-Disclosure
 Agreement,
 and may constitute non-public information and trade secrets. It is
 intended to be conveyed only to the designated recipient(s). If you
 are
 not an intended recipient of this message, please notify the sender
 at
 502-852-1605. 
  
 
 -Original Message-
 From: Otis Gospodnetic [mailto:[EMAIL PROTECTED] 
 Sent: Tuesday, June 17, 2003 9:05 AM
 To: Lucene Users List
 Subject: Re: Weighted Search by Field using MultiFieldQueryParser
 
 Didn't I reply to this yesterday?
 
 --- Kevin L. Cobb [EMAIL PROTECTED] wrote:
  I have an index that has three fields in it. When I do a search
 using
  MultiFieldQueryParser, the search applies the same importance
  (weight)
  to each of the fields. BUT, what if I want to apply a different
  weight
  to each field, i.e. I want to consider found terms from certain
  fields
  as less important than others. I have applied an algorithm to
 help
  me
  do this, which involves searching each field separately and then
  recombining the results into a single collection, but hate to
  reinvent
  the wheel if I don't have to.
  
   
  
   
  
  ~
  
  Kevin L Cobb, MT(ASCP), SCJP2
  
  Senior Software Engineer
  
  Emergint, Inc.
  
  501 E Broadway, Suite 250
  
  Louisville, KY 40202
  
  [EMAIL PROTECTED]
  
  502.852.1423
  
  502.852.1589 fax
  
   
  
   
  
  The preceding e-mail message and attachments, if any, contains
  information that is confidential and qualifies as such under the
  Definition of Confidential Information in the Non-Disclosure
  Agreement,
  and may constitute non-public information and trade secrets. It is
  intended to be conveyed only to the designated recipient(s). If you
  are
  not an intended recipient of this message, please notify the sender
  at
  502-852-1605. 
  
   
  
  
 
 
 __
 Do you Yahoo!?
 SBC Yahoo! DSL - Now only $29.95 per month!
 http://sbc.yahoo.com
 
 -
 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]
 


__
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
http://sbc.yahoo.com

-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]