On 6/10/11 6:27 PM, Michael McCandless wrote:
I'm actually working on something like this, basically a utility
method to merge N TopDocs into 1. I want to do this for grouping as
well to make it easy to do grouping across shards.
Mike,
The straightforward merge that is used in Solr suffers from incomparable
scores (due to the lack of global IDF). See my slides from the
Buzzwords. Since we can handle global IDF in local searchers more easily
that in Solr then we can reuse that DfCache trick from MultiSearcher.
--
Best regards,
Andrzej Bialecki <><
___. ___ ___ ___ _ _ __________________________________
[__ || __|__/|__||\/| Information Retrieval, Semantic Web
___|||__|| \| || | Embedded Unix, System Integration
http://www.sigram.com Contact: info at sigram dot com
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
