Apache Lucene 4.3.0 / 3.6.2 / 2.9.4

Developer: Website: License / Price: Platforms: Databases: Language: Last Updated: Category: Apache Software Foundation | More scripts lucene.apache.org Apache License  Windows / Linux / Mac OS / BSD / Solaris N/A Java May 9th, 2013, 09:46 GMT [view history] C: \ Search Engines

It is suitable for any application that requires full-text search, especially cross-platform.

Here are some key features of "Apache Lucene":

· Scalable
· High-performance indexing
· Cross-platform support
· Small RAM requirements
· Batch indexing
· Efficient search algorithms
· Ranked searching support
· Support for different query types
· Fielded searching
· Date-range searching
· Sorting by any field
· Multiple-index searching
· Merged results
· Simultaneous update and searching

What's New in This Release: [ read full changelog ]

· New SearcherTaxonomyManager manages near-real-time reopens of both IndexSearcher and TaxonomyReader (for faceting).
· Added new facet method to the facet module to compute facet counts using SortedSetDocValuesField, without a separate taxonomy index.
· Significant performance improvements for minShouldMatch BooleanQuery due to skipping resulting in up to 4000% faster queries.
· Various bugfixes and optimizations since the 4.2.1 release.

Via: Apache Lucene 4.3.0 / 3.6.2 / 2.9.4