Roget's Thesaurus: a Lexical Resource to Treasure
  This paper presents the steps involved in creating an electronic lexical knowledge base from the 1987 Penguin edition of Roget's Thesaurus. Semantic relations are labelled with the help of WordNet. The two resources are compared in a qualitative and quantitative manner. Differences in the organization of the lexical material are discussed, as well as the possibility of merging both resources. 
Mario Jarmasz and Stan Szpakowicz
cs.CL