High Quality Content by WIKIPEDIA articles! Clairlib is a suite of open-source Perl modules developed and maintained by the Computational Linguistics And Information Retrieval (CLAIR) group at the University of Michigan. Clairlib is intended to simplify a number of generic tasks in natural language processing (NLP), information retrieval (IR), and network analysis (NA). The latest version of clairlib is 1.06 which was released on March 2009 and includes about 130 modules implementing a wide range of functionalities.