Out of curiosity, how is DF handled with the new automaton [regex] queries?
On Fri, Jun 10, 2011 at 10:48 AM, Andrzej Bialecki <[email protected]> wrote: > 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] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
