Paper: Fast Computation Of Lexical Affinity Models

ACL ID C04-1147
Title Fast Computation Of Lexical Affinity Models
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2004
Authors

We present a framework for the fast compu- tation of lexical affinity models. The frame- work is composed of a novel algorithm to effi- ciently compute the co-occurrence distribution between pairs of terms, an independence model, and a parametric affinity model. In compari- son with previous models, which either use ar- bitrary windows to compute similarity between words or use lexical affinity to create sequential models, in this paper we focus on models in- tended to capture the co-occurrence patterns of any pair of words or phrases at any distance in the corpus. The framework is flexible, allowing fast adaptation to applications and it is scalable. We apply it in combination with a terabyte cor- pus to answer natural language tests, achieving encouraging results.