cammiemw commented on a change in pull request #2097: URL: https://github.com/apache/lucene-solr/pull/2097#discussion_r532908661
########## File path: lucene/core/src/java/org/apache/lucene/search/similarities/IndriDirichletSimilarity.java ########## @@ -0,0 +1,108 @@ +/* + * =============================================================================================== + * Copyright (c) 2019 Carnegie Mellon University and University of Massachusetts. All Rights + * Reserved. + * + * Use of the Lemur Toolkit for Language Modeling and Information Retrieval is subject to the terms + * of the software license set forth in the LICENSE file included with this software, and also + * available at http://www.lemurproject.org/license.html + * + * ================================================================================================ + */ +package org.apache.lucene.search.similarities; + +import java.util.List; +import java.util.Locale; + +import org.apache.lucene.search.Explanation; +import org.apache.lucene.search.similarities.BasicStats; +import org.apache.lucene.search.similarities.LMSimilarity; + +/** + * Bayesian smoothing using Dirichlet priors as implemented in the Indri Search + * engine (http://www.lemurproject.org/indri.php). Indri Dirichelet Smoothing! + * tf_E + mu*P(t|D) P(t|E)= ------------------------ documentLength + documentMu + * mu*P(t|C) + tf_D where P(t|D)= --------------------- doclen + mu + */ Review comment: I tried adding more formatting and a description of mu. Let me know if you would like to see anything different or more. Thanks! ---------------------------------------------------------------- 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
