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» Querying Bi-level Information
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AWIC
2005
Springer
15 years 11 months ago
Conceptual Query Expansion
Query expansion has been extensively studied as a technique for increasing information retrieval performance. However, due to the volume of documents available on the web, many of ...
Orland Hoeber, Xue Dong Yang, Yiyu Yao
DEXA
2009
Springer
176views Database» more  DEXA 2009»
15 years 3 months ago
Analyzing Document Retrievability in Patent Retrieval Settings
Most information retrieval settings, such as web search, are typically precision-oriented, i.e. they focus on retrieving a small number of highly relevant documents. However, in sp...
Shariq Bashir, Andreas Rauber
WWW
2011
ACM
15 years 27 days ago
FACTO: a fact lookup engine based on web tables
Recently answers for fact lookup queries have appeared on major search engines. For example, for the query {Barack Obama date of birth} Google directly shows “4 August 1961” a...
Xiaoxin Yin, Wenzhao Tan, Chao Liu
WWW
2009
ACM
16 years 6 months ago
Online expansion of rare queries for sponsored search
Sponsored search systems are tasked with matching queries to relevant advertisements. The current state-of-the-art matching algorithms expand the user's query using a variety...
Andrei Z. Broder, Peter Ciccolo, Evgeniy Gabrilovi...
DASFAA
2008
IEEE
168views Database» more  DASFAA 2008»
16 years 13 days ago
SemanticTwig: A Semantic Approach to Optimize XML Query Processing
Twig pattern matching (TPM) is the core operation of XML query processing. Existing approaches rely on either efficient data structures or novel labeling/indexing schemes to reduce...
Zhifeng Bao, Tok Wang Ling, Jiaheng Lu, Bo Chen