Paper: Optimizing Story Link Detection Is Not Equivalent To Optimizing New Event Detection

ACL ID P03-1030
Title Optimizing Story Link Detection Is Not Equivalent To Optimizing New Event Detection
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2003
Authors

Link detection has been regarded as a core technology for the Topic Detection and Tracking tasks of new event detection. In this paper we formulate story link detec- tion and new event detection as informa- tion retrieval task and hypothesize on the impact of precision and recall on both sys- tems. Motivated by these arguments, we introduce a number of new performance enhancing techniques including part of speech tagging, new similarity measures and expanded stop lists. Experimental re- sults validate our hypothesis.