The Uned systems at Senseval-2
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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.
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