Senseval is the organization that runs evaluation exercises and workshops for word sense disambiguation (WSD) systems and other computational systems for lexical semantics.

I was co-chair from 2002-2004 and worked on Senseval-2 and Senseval-3.

Senseval organization

Senseval-1 (1998)

Senseval-2 (2001)

Senseval-3 (2004)

SemEval-1 / Senseval-4 (2006-2007)