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From Ahmet Arslan <>
Subject Re: Relevancy help
Date Mon, 05 May 2014 22:12:31 GMT
Hi Ravi,

Regarding recency please see :

Regarding "docs containing all words" there is function query that elevates those docs to
top. Search existing mailing list past posts.


On Tuesday, May 6, 2014 12:42 AM, Ravi Solr <> wrote:

        I have a weird relevancy requirement. We search news content hence
chronology is very important and also relevancy, although both are mutually
exclusive. For example, if the search terms are -  malaysia airline crash
blackbox - my requirements are as follows

docs containing all words should be on top, but the editorial also wants
them sorted reverse by chronological order without loosing relevancy. Why
?? If on day 1 there is an article about search for blackbox but on day 2
the blackbox is found and day 3 there is an article about blackbox being
unusable...from the user's standpoint it makes sense that we show most
recent content on top.

I already boost recency of docs with
boost=recip(ms(NOW/HOUR,displaydatetime),7.889e-10,1,1) i.e. increments of
3 months

However when I do the boost the chronology is messed up. I know relevancy
and sorting are mutually exclusive concepts. Is there any magic that we can
do in SOLR which can achieve both ???


Ravi Kiran bhaskar

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