Thus, some research has been focused on deriving different word-sense groupings to overcome the fine-grained distinctions of WN (Hearst and Schütze, 1993), , (Mihalcea and Moldovan, 2001), (Agirre and LopezDeLa-Calle, 2003), (Navigli, 2006) and (Snow et al., 2007).
they provide methods for grouping senses of the same word, thus producing coarser word sense groupings for better disambiguation.