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Message-Id: <5.0.2.1.2.20040217205808.02e674f0@pop3.smart.net>
Date: Tue, 17 Feb 2004 21:07:33 -0500
To: "Lucene Users List" <lucene-user@jakarta.apache.org>
From: "Daniel B. Davis" <dbd@smart.net>
Subject: Re: 'Sponsored' links
In-Reply-To: <403143E1.7000607@apache.org>
References: <5.0.2.1.2.20040215154529.02d82df0@pop3.smart.net>
 <5.0.2.1.2.20040215154529.02d82df0@pop3.smart.net>
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At 02:27 PM 2/16/2004 -0800, you wrote:

>Daniel B. Davis wrote:
>>Are there other strategies not considered?
>
>Why not store sponsored documents in a separate index, separately 
>searched, whose results are placed above those from the non-sponsored 
>documents?
>
>Doug

What would that do?  Each separate index would need to be searched for 
eligible documents.  The idea is to find all qualifying documents held at 
the site, then to prefer certain ones by displaying them before others.  I 
understand Lucene does this naturally using the score achieved by the 
search process. I understand that 'boost' affects that score, and thus, the 
display order. Is this incorrect or inaccurate?  What is gained by a 
separate index?  One separate index? A separate index for each 
sponsor?  What if the same document has multiple sponsors?  In #1 and #2 of 
the original discussion, the maximum sponsored value could be used to set 
the boost, but at different times.

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