ARKref is a Noun Phrase Coreference System.

It is a Java-based, deterministic, rule-based system that uses syntactic information from a constituent parser, and semantic information from an entity recognition component. Its architecture is based on the work of Haghighi and Klein (2009).

It was developed by Brendan O'Connor and Michael Heilman, and written mostly in 2009 and 2010.

For more information, see:
ARKref: a rule-based coreference resolution system. Brendan O'Connor and Michael Heilman. arXiv:1310.1975, Oct 2013.

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Download a release: arkref-20110321.tgz

Or, access on github: github.com/brendano/arkref