Re: extract multi-features for one solr feature extractor in solr learning to rank

2017-04-21 Thread alessandro.benedetti
plugin, this will involve a modification in how currently the feature vector is generated. Cheers - --- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- View this message in context: http://lucene.472066.n3.nabble.com/ex

Re: extract multi-features for one solr feature extractor in solr learning to rank

2017-04-18 Thread Jianxiong Dong
Hi, Michael, Thank for very valuable feedbacks. > You can pass in different params in the > features.json config for each feature, even though they use the same > feature class. I used this idea to extract some features in this paper (https://www.microsoft.com/en-us/research/wp-content/upload

Re: extract multi-features for one solr feature extractor in solr learning to rank

2017-04-18 Thread Michael Nilsson
Hi Jianxiong, What you say is true. If you want 100 different feature values extracted, you need to specify 100 different features in the features.json config so that there is a direct mapping of features in and features out. However, you more than likely need to only implement 1 feature class t

extract multi-features for one solr feature extractor in solr learning to rank

2017-04-14 Thread Jianxiong Dong
Hi, I found that solr learning-to-rank (LTR) supports only ONE feature for a given feature extractor. See interface: https://github.com/apache/lucene-solr/blob/master/solr/contrib/ltr/src/java/org/apache/solr/ltr/feature/Feature.java Line (281, 282) (in FeatureScorer) @Override public