1999 StatisticalModelsForTextSegmentation

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Subject Headings: Text Segmentation Algorithm, Statistical Algorithm.


Cited By




This paper introduces a new statistical approach to automatically partitioning text into coherent segments. The approach is based on a technique that incrementally builds an exponential model to extract features that are correlated with the presence of boundaries in labeled training text. The models use two classes of features: topicality features that use adaptive language models in a novel way to detect broad changes of topic, and cue-word features that detect occurrences of specific words, which may be domain-specific, that tend to be used near segment boundaries. Assessment of our approach on quantitative and qualitative grounds demonstrates its effectiveness in two very different domains, Wall Street Journal news articles and television broadcast news story transcripts. Quantitative results on these domains are presented using a new probabilistically motivated error metric, which combines precision and recall in a natural and flexible way. This metric is used to make a quantitative assessment of the relative contributions of the different feature types, as well as a comparison with decision trees and previously proposed text segmentation algorithms.



 AuthorvolumeDate ValuetitletypejournaltitleUrldoinoteyear
1999 StatisticalModelsForTextSegmentationDoug Beeferman
Adam Berger
John D. Lafferty
Statistical Models for Text SegmentationMachine Learning Subject Areahttp://www-2.cs.cmu.edu/~aberger/pdf/ml.pdf1999