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ECIR
2003
Springer

Topic Detection and Tracking with Spatio-Temporal Evidence

9 years 1 months ago
Topic Detection and Tracking with Spatio-Temporal Evidence
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.
Juha Makkonen, Helena Ahonen-Myka, Marko Salmenkiv
Added 31 Oct 2010
Updated 31 Oct 2010
Type Conference
Year 2003
Where ECIR
Authors Juha Makkonen, Helena Ahonen-Myka, Marko Salmenkivi
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