Abstract
Retrospective news event detection (RED) is defined as the discovery of previously unidentified events in historical news corpus. Although both the contents and time information of news articles are helpful to RED, most researches focus on the utilization of the contents of news articles. Few research works have been carried out on finding better usages of time information. In this paper, we do some explorations on both directions based on the following two characteristics of news articles. On the one hand, news articles are always aroused by events; on the other hand, similar articles reporting the same event often redundantly appear on many news sources. The former hints a generative model of news articles, and the latter provides data enriched environments to perform RED. With consideration of these characteristics, we propose a probabilistic model to incorporate both content and time information in a unified framework. This model gives new representations of both news articles and news events. Furthermore, based on this approach, we build an interactive RED system, HISCOVERY, which provides additional functions to present events, Photo Story and Chronicle. © 2005 ACM.
| Original language | English |
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| Title of host publication | SIGIR 2005 - Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval |
| Pages | 106-113 |
| DOIs | |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2005 - Salvador, Brazil Duration: 15 Aug 2005 → 19 Aug 2005 https://dl.acm.org/doi/proceedings/10.1145/1076034 |
Publication series
| Name | SIGIR 2005 - Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval |
|---|
Conference
| Conference | 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2005 |
|---|---|
| Place | Brazil |
| City | Salvador |
| Period | 15/08/05 → 19/08/05 |
| Internet address |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- clustering
- expectation maximization
- maximum likelihood
- retrospective news event detection
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