The Uned systems at Senseval-2

10/28/2009

∙

by   David Fernandez-Amoros, et al.

∙

0

∙

share

We have participated in the SENSEVAL-2 English tasks (all words and lexical sample) with an unsupervised system based on mutual information measured over a large corpus (277 million words) and some additional heuristics. A supervised extension of the system was also presented to the lexical sample task. Our system scored first among unsupervised systems in both tasks: 56.9 recall in all words, 40.2 first sense heuristic for all words and 3.6 strong indication that unsupervised Word Sense Disambiguation remains being a strong challenge.