Hi Archana, Yes, the 'p' attribute is positional information. That list is indicating that the term occurs on the 0th and 43rd positions in the document, and is 0-indexed. Not sure why you are getting two positions if the word only occurred once. What was the original query?
The scoring information that you see is a bug. For now, as a workaround, you can add the scores together. This will give you a *relative* score, allowing you to rank results for the current query. To fix this issue, some processing needs to happen within riak to combine and normalize the scores into a final score that can be used for correct ranking against other queries as well. (This is being done for the Solr interface, but not the Map/Reduce interface.) Riak Search models scoring after Lucene as much as possible, so you can read this for more information about scoring, especially the final normalization step: http://lucene.apache.org/java/2_4_0/api/org/apache/lucene/search/Similarity.html This issue is tracked in https://issues.basho.com/show_bug.cgi?id=1154 Best, Rusty On Thu, Aug 4, 2011 at 3:27 PM, Archana Bhattarai <abhatta...@sharecare.com>wrote: > Hi Rusty, > > Thanks a lot for the answer. We could get some data in the keydata as > follows: > > > [{"p":[43,0],"score":[5.3669048584479,1.7201627119528418]} > > But couldn't exactly interpret what it's representing. I believe p is > giving positional information. But why is it two dimensional when the word > we searched only occurred once in the document. Does the position ignore > stopword positions and just count other words? Also why are there two scores > ? Isn't the score normalized ? Or am I doing something wrong to get these > scores ? > > > Thanks a lot in advance, > Archana > > > > On Jul 22, 2011, at 11:09 AM, Rusty Klophaus wrote: > > Hi Archana, > > Yes. When you use a search query to initiate a map/reduce job, the scores > are fed into the first phase as keydata, along with other metadata about the > search result including positional information and any inline fields. > > More information in the links below: > > - > > http://wiki.basho.com/Riak-Search---Querying.html#Querying-Integrated-with-Map-Reduce > - http://wiki.basho.com/MapReduce.html (search for "keydata") > > Best, > Rusty > > On Fri, Jul 22, 2011 at 10:53 AM, Archana Bhattarai < > abhatta...@sharecare.com> wrote: > >> Hi, >> >> Is there a way to get back the score while querying via solr interface or >> ideally mapreduce over search ? It looks like solr interface only supports >> sorting. >> >> >> Thanks in advance, >> Archana >> _______________________________________________ >> riak-users mailing list >> riak-users@lists.basho.com >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> > > > > -- > Rusty Klophaus > > *Basho Technologies, Inc.* > 11921 Freedom Drive, Suite 550 > Reston, VA 20190 > www.basho.com > > > > > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > > -- Rusty Klophaus *Basho Technologies, Inc.* 11921 Freedom Drive, Suite 550 Reston, VA 20190 www.basho.com
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