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The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

Topics over time: a non-Markov continuous-time model of topical trends

Wang, Xuerui, McCallum, Andrew·2006·Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining

Abstract

This paper presents an LDA-style topic model that captures not only the low-dimensional structure of data, but also how the structure changes over time. Unlike other recent work that relies on Markov assumptions or discretization of time, here each topic is associated with a continuous distribution over timestamps, and for each generated document, the mixture distribution over topics is influenced by both word co-occurrences and the document's timestamp. Thus, the meaning of a particular topic can be relied upon as constant, but the topics' occurrence and correlations change significantly over time. We present results on nine months of personal email, 17 years of NIPS research papers and over 200 years of presidential state-of-the-union addresses, showing improved topics, better timestamp prediction, and interpretable trends.

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Metadata

Authors
Wang, X., & McCallum, A.
Venue
Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining
Publisher
ACM
Published
2006-08-20
Pages
424-433
OpenAlex
W2171343266
Cited by
1,121
References
18
FWCI
21.85
Type
conference paper
Language
en
Open access
closed

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CoChat. (2026). Citation check: Topics over time: a non-Markov continuous-time model of topical trends. https://app.cochat.ai/papers/10.1145/1150402.1150450
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Wang, X., & McCallum, A. (2006). Topics over time: a non-Markov continuous-time model of topical trends. Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining. https://doi.org/10.1145/1150402.1150450

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.