Paper: Investigations On Event Evolution On TDT

ACL ID N03-3008
Title Investigations On Event Evolution On TDT
Venue Human Language Technologies
Session Student Session
Year 2003

Topic detection and tracking approaches mon- itor broadcast news in order to spot new, pre- viously unreported events and to track the de- velopment of the previously spotted ones. The dynamical nature of the events makes the use of state-of-the-art methods difficult. We present a new topic definition that has potential to model evolving events. We also discuss incorporat- ing ontologies into the similarity measures of the topics, and illustrate a dynamic hierarchy that decreases the exhaustive computation per- formed in the TDT process. This is mainly work-in-progress.