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» On performance of topical opinion retrieval
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SIGIR
2003
ACM
14 years 23 days ago
Retrieval and novelty detection at the sentence level
Previous research in novelty detection has focused on the task of finding novel material, given a set or stream of documents on a certain topic. This study investigates the more ...
James Allan, Courtney Wade, Alvaro Bolivar
SIGIR
2003
ACM
14 years 23 days ago
Beyond independent relevance: methods and evaluation metrics for subtopic retrieval
We present a non-traditional retrieval problem we call subtopic retrieval. The subtopic retrieval problem is concerned with finding documents that cover many different subtopics ...
ChengXiang Zhai, William W. Cohen, John D. Laffert...
ECIR
2003
Springer
13 years 9 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 ...
Juha Makkonen, Helena Ahonen-Myka, Marko Salmenkiv...
TREC
2007
13 years 8 months ago
Feed Distillation Using AdaBoost and Topic Maps
This paper retains the experiences by participating in TREC 2007 Blog Track ‘Feed Distillation’. To perform the run various classifiers are combined, which analyze title-, co...
Wai-Lung Lee, Andreas Lommatzsch, Christian Scheel
SIGIR
2009
ACM
14 years 2 months ago
Using wikipedia categories for ad hoc search
In this paper we explore the use of category information for ad hoc retrieval in Wikipedia. We show that techniques for entity ranking exploiting this category information can als...
Rianne Kaptein, Marijn Koolen, Jaap Kamps