Re: Learning to Rank algorithms in Lucene

2015-08-24 Thread Koji Sekiguchi
Hi ajinkya, In last week, I had a technical talk about NLP4L at Lucene/Solr meetup: http://www.meetup.com/Downtown-SF-Apache-Lucene-Solr-Meetup/events/223899054/ In my talk, I told about the implementation idea of Learning to Rank using Lucene. Please take a look at page 48 to 50 of the follow

Re: Learning to Rank algorithms in Lucene

2015-08-18 Thread Ahmet Arslan
Hi Ajinkya, I don't think there exists any production-ready LtR-Lucene/Solr setup. LtR simply re-rank top N (typically 1000) documents. Fetching top N documents is what we do today with Lucene. There is an API for re-rank in Lucene/Solr but no LtR support yet. https://cwiki.apache.org/confluenc

Re: Learning to Rank algorithms in Lucene

2015-08-18 Thread Sachin Kulkarni
Where do you plan to use it? So far there is no built in learning to rank implementations in Lucene at least. There are suggestions to include those. I do not know about Solr. I worked on research projects on Learning to Rank algorithms and I had used Lucene to generate the features which then I r

Learning to Rank algorithms in Lucene

2015-08-18 Thread Ajinkya Kale
Are there any existing packages/examples or prior experience on using Learning to Rank (or Machine Learned Ranking) algorithms as custom Scorer/Ranker for lucene or solr ? How do people deploy Learning to Rank models with Lucene backends ? --ajinkya