Evaluating the Effectiveness of Ensembles of Decision Trees in Disambiguating Senseval Lexical Samples

Abstract

This paper presents an evaluation of an ensemble--based system that participated in the English and Spanish lexical sample tasks of Senseval-2. The system combines decision trees of unigrams, bigrams, and co--occurrences into a single classifier. The analysis is extended to include the Senseval-1 data.Comment: Appears in the Proceedings of the ACL-02 Workshop on Word Sense Disambiguation: Recent Successes and Future Directions, July 11, 2002, Philadelphia, P