1809 search results - page 68 / 362 » Topic Modeling Ensembles |
170
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EMNLP
2010
15 years 4 months ago
2010
This work concerns automatic topic segmentation of email conversations. We present a corpus of email threads manually annotated with topics, and evaluate annotator reliability. To...
152
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SIGIR
2002
ACM
15 years 5 months ago
2002
ACM
Topic Detection and Tracking (TDT) tasks are evaluated using a cost function. The standard TDT cost function assumes a constant probability of relevance P(rel) across all topics. ...
187
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CIKM
2010
Springer
15 years 4 months ago
2010
Springer
Low-dimensional topic models have been proven very useful for modeling a large corpus of documents that share a relatively small number of topics. Dimensionality reduction tools s...
153
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EMNLP
2008
15 years 7 months ago
2008
This paper describes a novel Bayesian approach to unsupervised topic segmentation. Unsupervised systems for this task are driven by lexical cohesion: the tendency of wellformed se...
172
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GECCO
2007
Springer
16 years 5 days ago
2007
Springer
Surrogate-Assisted Memetic Algorithm(SAMA) is a hybrid evolutionary algorithm, particularly a memetic algorithm that employs surrogate models in the optimization search. Since mos...