A Solr plugin that computes rank for variety of ranking strategies.
Plugin has two primary components, A Rank Component, that extends Solr Search component and uses the results returned by to compute the rank. Rank component internally depends on Solr's search & facet components. Second, Simple Rank Engine that implements various ranking strategies. Supported ranking strategies are Dense, Standard Competition, Modified Competition, Fractional & Ordinal. Good explanation of ranking strategies can be found at Wikipedia
This plugin itself very light-weight, performance of this plugin is directly tied to how well Lucene can Sort & handle Deep Pagging & how well your schema is defined. Solr/Lucene 3.5 offers significant performance improvements for Deep Paging.
Project is license under Apache License 2.0. Apache License. More details on the project license & other intellectual property dependencies please refer to [[License|License]]
Latest release is 0.2.0. Please download the latest release from Downloads