What Is Lucene?
The Apache Lucene project develops open-source search software, including:
Lucene Java, our flagship sub-project, provides Java-based indexing and search technology, as well as spellchecking, hit highlighting and advanced analysis/tokenization capabilities.
Droids is an intelligent robot crawling framework currently in incubation.
Lucene.Net is a source code, class-per-class, API-per-API and algorithmatic port of the Lucene Java search engine to the C# and .NET platform utilizing Microsoft .NET Framework. Lucene.Net is currently under incubation.
Lucy is a loose C port of Lucene Java, with Perl and Ruby bindings.
Mahout is a subproject with the goal of creating a suite of scalable machine learning libraries.
Nutch builds on Lucene Java to provide web search application software.
Open Relevance Project is a new subproject with the aim of collecting and distributing free materials for relevance testing and performance.
PyLucene is a Python port of the the Lucene Java project.
Solr is a high performance search server built using Lucene Java, with XML/HTTP and JSON/Python/Ruby APIs, hit highlighting, faceted search, caching, replication, and a web admin interface.
Tika is a toolkit for detecting and extracting metadata and structured text content from various documents using existing parser libraries.
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