Fine-grained hidden markov modeling for broadcast-news story segmentation

Authors:
Warren Greiff;Alex Morgan;Randall Fish;Marc Richards;Amlan Kundu
Affiliations:
MITRE Corporation, Bedford, MA;MITRE Corporation, Bedford, MA;MITRE Corporation, Bedford, MA;MITRE Corporation, Bedford, MA;MITRE Corporation, Bedford, MA
Venue:
HLT '01 Proceedings of the first international conference on Human language technology research
Year:
2001

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Abstract

We present the design and development of a Hidden Markov Model for the division of news broadcasts into story segments. Model topology, and the textual features used, are discussed, together with the non-parametric estimation techniques that were employed for obtaining estimates for both transition and observation probabilities. Visualization methods developed for the analysis of system performance are also presented.