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Carrot2
Carrot²〔(Carrot² project website )〕 is an open source search results clustering engine.〔(Carrot² search results clustering demo )〕 It can automatically cluster small collections of documents, e.g. search results or document abstracts, into thematic categories. Apart from two specialized search results clustering algorithms, Carrot² offers ready-to-use components for fetching search results from various sources. Carrot² is written in Java and distributed under the BSD license.
== History ==
The initial version of Carrot² was implemented in 2001 by Dawid Weiss as part of his MSc thesis to validate the applicability of the STC clustering algorithm to clustering search results in Polish.〔Dawid Weiss: ''A Clustering Interface for Web Search Results in Polish and English.'' MSc thesis. Poznan University of Technology, Poznań, Poland, 2001 (download PDF )〕 In 2003, a number of other search results clustering algorithms were added, including Lingo,〔 a novel text clustering algorithm designed specifically for clustering of search results. While the source code of Carrot² was available since 2002, it was only in 2006 when version 1.0 was officially released. In the same year, version 2.0 was released with improved user interface and extended tool set. In 2009, version 3.0 brought significant improvements in clustering quality, simplified API and new GUI application for tuning clustering based on the Eclipse Rich Client Platform.
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