720 search results - page 111 / 144 » Positional language models for information retrieval |
116
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SIGIR
2011
ACM
14 years 16 days ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
IUI
2006
ACM
15 years 3 months ago
2006
ACM
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...
ER
1999
Springer
15 years 2 months ago
1999
Springer
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...
102
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IRCDL
2008
14 years 11 months ago
2008
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 ...
KDD
2009
ACM
15 years 4 months ago
2009
ACM
Merchants selling products on the Web often ask their customers to share their opinions and hands-on experiences on products they have purchased. Unfortunately, reading through al...