Word sense ambiguity has been identified as a cause of poor precision in information
retrieval (IR) systems. Word sense disambiguation and discrimination methods have been
defined to help systems choose which documents should be retrieved in relation to an
ambiguous query. However, the only approaches that show a genuine benefit for word
sense discrimination or disambiguation in IR are generally supervised ones. In this paper
we propose a new unsupervised method that uses word sense discrimination in IR. The …