I had implemented wand with solr/lucene. So far there is no performance issue. There is no native support for this functionality, you need to implement it by yourself..
On Fri, Mar 15, 2013 at 10:09 AM, Lin Ma <lin...@gmail.com> wrote: > Hello guys, > > Supposing I have one million documents, and each document has hundreds of > features. For a given query, it also has hundreds of features. I want to > fetch most relevant top 1000 documents by dot product related features of > query and documents (query/document features are in the same feature > space). > > I am not sure how Lucene implement internally? If we have to go through all > one million document to dot product the query, then I am concerning about > the performance. Appreciate if anyone could confirm (1) how Lucene works > internally for this use case (2) any smart ideas to make improvement for > query efficiency to select top 1000 documents? > > thanks in advance, > Lin >
