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Status: beta
Last release: 1.0 Build 8 (February 5, 2009)
License: Apache License
Affiliation: Technische Universität Dresden
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CEL is a reasoner for the polynomial description logic EL+, which is supported by the upcoming OWL 2 standard and in part also by the existing OWL DL. The most distinguishing feature of CEL is that, unlike many other DL reasoners, it implements a polynomial-time algorithm.