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Apache lucene solr full#
Apache lucene solr software#

Apache Nutch – provides web crawling and HTML parsing.

However, several projects extend Lucene's capability: Lucene itself is just an indexing and search library and does not contain crawling and HTML parsing functionality. In contrast, citation-based document similarity measures tended to be more suitable for recommending more broadly related documents, meaning citation-based approaches may be more suitable for generating serendipitous recommendations, as long as documents to be recommended contain in-text citations. In a comparison of the term vector-based similarity approach of 'MoreLikeThis' with citation-based document similarity measures, such as co-citation and co-citation proximity analysis, Lucene's approach excelled at recommending documents with very similar structural characteristics and more narrow relatedness.

For example, Lucene's 'MoreLikeThis' Class can generate recommendations for similar documents. Lucene has also been used to implement recommendation systems. Lucene includes a feature to perform a fuzzy search based on edit distance.

Apache lucene solr full#

While suitable for any application that requires full text indexing and searching capability, Lucene is recognized for its utility in the implementation of Internet search engines and local, single-site searching. In March 2021, Lucene changed its logo, and Apache Solr became a top level Apache project again, independent from Lucene. Version 4.0 was released on October 12, 2012. In March 2010, the Apache Solr search server joined as a Lucene sub-project, merging the developer communities. These three are now independent top-level projects. Lucene formerly included a number of sub-projects, such as Lucene.NET, Mahout, Tika and Nutch. The name Lucene is Doug Cutting's wife's middle name and her maternal grandmother's first name.

Apache lucene solr software#

It joined the Apache Software Foundation's Jakarta family of open-source Java products in September 2001 and became its own top-level Apache project in February 2005. It was initially available for download from its home at the SourceForge web site. Lucene was his fifth search engine, having previously written two while at Xerox PARC, one at Apple, and a fourth at Excite.

Doug Cutting originally wrote Lucene in 1999.