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2003 | OriginalPaper | Buchkapitel

Topic Detection and Tracking with Spatio-Temporal Evidence

verfasst von : Juha Makkonen, Helena Ahonen-Myka, Marko Salmenkivi

Erschienen in: Advances in Information Retrieval

Verlag: Springer Berlin Heidelberg

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Topic Detection and Tracking is an event-based information organization task where online news streams are monitored in order to spot new unreported events and link documents with previously detected events. The detection has proven to perform rather poorly with traditional information retrieval approaches. We present an approach that formalizes temporal expressions and augments spatial terms with ontological information and uses this data in the detection. In addition, instead using a single term vector as a document representation, we split the terms into four semantic classes and process and weigh the classes separately. The approach is motivated by experiments.

Metadaten
Titel
Topic Detection and Tracking with Spatio-Temporal Evidence
verfasst von
Juha Makkonen
Helena Ahonen-Myka
Marko Salmenkivi
Copyright-Jahr
2003
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/3-540-36618-0_18