505 search results - page 62 / 101 » Queries with Incomplete Answers over Semistructured Data |
DEXA
2005
Springer
15 years 3 months ago
2005
Springer
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...
100
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WWW
2009
ACM
15 years 10 months ago
2009
ACM
Community Question Answering (CQA) has emerged as a popular forum for users to pose questions for other users to answer. Over the last few years, CQA portals such as Naver and Yah...
ISI
2006
Springer
14 years 9 months ago
2006
Springer
Access control mechanisms are commonly used to provide control over who may access sensitive information. However, malicious users can exploit the correlation among the data and in...
EDBT
2008
ACM
15 years 9 months ago
2008
ACM
Skyline query is of great importance in many applications, such as multi-criteria decision making and business planning. In particular, a skyline point is a data object in the dat...
177
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
The modeling of high level semantic events from low level sensor signals is important in order to understand distributed phenomena. For such content-modeling purposes, transformat...