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» Statistical Language Models for Information Retrieval
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SIGIR
2011
ACM
14 years 15 days ago
A boosting approach to improving pseudo-relevance feedback
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
Yuanhua Lv, ChengXiang Zhai, Wan Chen
IUI
2006
ACM
15 years 3 months ago
Towards intelligent QA interfaces: discourse processing for context questions
Question answering (QA) systems take users’ natural language questions and retrieve relevant answers from large repositories of free texts. Despite recent progress in QA researc...
Mingyu Sun, Joyce Y. Chai
GBRPR
2007
Springer
15 years 1 months ago
An Efficient Ontology-Based Expert Peering System
Abstract. This paper proposes an expert peering system for information exchange. Our objective is to develop a real-time search engine for an online community where users can ask e...
Tansu Alpcan, Christian Bauckhage, Sachin Agarwal
ER
1999
Springer
160views Database» more  ER 1999»
15 years 2 months ago
Developing an Object-Oriented Video Database System with Spatio-Temporal Reasoning Capabilities
Video data management (VDM) is fast becoming one of seminar topics in multimedia information systems. In VDM systems, there exists an important need for novel techniques and mechan...
Shermann S.-M. Chan, Qing Li
IRCDL
2008
14 years 11 months ago
Video Event Annotation using Ontologies with Temporal Reasoning
Annotation and retrieval tools for multimedia digital libraries have to cope with the complexity of multimedia content. In particular, when dealing with video content, annotation ...
Marco Bertini, Alberto Del Bimbo, Giuseppe Serra