alessandrobenedetti commented on a change in pull request #1571: URL: https://github.com/apache/lucene-solr/pull/1571#discussion_r520513604
########## File path: solr/solr-ref-guide/src/learning-to-rank.adoc ########## @@ -247,6 +254,81 @@ The output XML will include feature values as a comma-separated list, resembling }} ---- +=== Running a Rerank Query Interleaving Two Models + +To rerank the results of a query, interleaving two models (myModelA, myModelB) add the `rq` parameter to your search, passing two models in input, for example: + +[source,text] +http://localhost:8983/solr/techproducts/query?q=test&rq={!ltr model=myModelA model=myModelB reRankDocs=100}&fl=id,score + +To obtain the model that interleaving picked for a search result, computed during reranking, add `[interleaving]` to the `fl` parameter, for example: + +[source,text] +http://localhost:8983/solr/techproducts/query?q=test&rq={!ltr model=myModelA model=myModelB reRankDocs=100}&fl=id,score,[interleaving] + +The output XML will include the model picked for each search result, resembling the output shown here: + +[source,json] +---- +{ + "responseHeader":{ + "status":0, + "QTime":0, + "params":{ + "q":"test", + "fl":"id,score,[interleaving]", + "rq":"{!ltr model=myModelA model=myModelB reRankDocs=100}"}}, + "response":{"numFound":2,"start":0,"maxScore":1.0005897,"docs":[ + { + "id":"GB18030TEST", + "score":1.0005897, + "[interleaving]":"myModelB"}, + { + "id":"UTF8TEST", + "score":0.79656565, + "[interleaving]":"myModelA"}] + }} +---- + +=== Running a Rerank Query Interleaving a model with the original ranking +When approaching Search Quality Evaluation with interleaving it may be useful to compare a model with the original ranking. +To rerank the results of a query, interleaving a model with the original ranking, add the `rq` parameter to your search, with a model in input and activating the original ranking interleaving, for example: + + +[source,text] +http://localhost:8983/solr/techproducts/query?q=test&rq={!ltr model=myModel model=_OriginalRanking_ reRankDocs=100}&fl=id,score Review comment: Just fixed that, it's not critical as the order is not important, but if it's more readable, let's go for it! ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
