Hi - you do understand may case - we tried what you suggested but as the 
relevancy is very precise we couldn't get it it to do a dual-sort.

I like the idea of using one of the dismax parameters (bf) to in-effect 
increase the boost on a newer document. 

Thanks for all replies, most useful.


-----Original Message-----
From: Savvas-Andreas Moysidis [mailto:savvas.andreas.moysi...@googlemail.com]
Sent: Tue 30/11/2010 09:26
To: solr-user@lucene.apache.org
Subject: Re: Boost on newer documents
 
hi,

I might not understand your case right but can you not add an extra
publishedDate field and then specify a secondary (after relevance) sort by
that?

On 30 November 2010 08:05, <jan.kure...@nokia.com> wrote:

> You could also put a short representation of the data (I suggest days since
> 01.01.2010) as payload and calculate boost with payload function of the
> similarity.
>
> >-----Original Message-----
> >From: ext Jason Brown [mailto:jason.br...@sjp.co.uk]
> >Sent: Montag, 29. November 2010 17:28
> >To: solr-user@lucene.apache.org
> >Subject: Boost on newer documents
> >
> >
> >Hi,
> >
> >I use the dismax query to search across several fields.
> >
> >I find I have a lot of documents with the same document name (one of the
> fields that the dismax queries) so I wanted to adjust the
> >relevance so that titles with a newer published date have a higher
> relevance than documents with the same title but are older. Does
> >anyone know how I can achieve this?
> >
> >Thank You
> >
> >Jason.
> >
> >If you wish to view the St. James's Place email disclaimer, please use the
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> >
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>


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