1039 search results - page 102 / 208 » Query reformulation with constraints |
136
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SAC
2004
ACM
15 years 10 months ago
2004
ACM
Integrity constraints are valuable tools for enforcing consistency of data in a database. Global integrity constraints ensure integrity and consistency of data spanning multiple d...
245
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VLDB
2002
ACM
16 years 5 months ago
2002
ACM
: Purpose ? Tree pattern is at the core of XML queries. The tree patterns in XML queries typically contain redundancies, especially when broad integrity constraints (ICs) are prese...
256
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ICDE
2006
IEEE
16 years 6 months ago
2006
IEEE
We present ACXESS (Access Control for XML with Enhanced Security Specifications), a system for specifying and enforcing enhanced security constraints on XML via virtual "secu...
150
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SOCO
2010
Springer
14 years 11 months ago
2010
Springer
Abstract When searching for information about historical events, queries are naturally formulated using temporal constraints. However, the structured temporal information needed to...
181
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CORR
2007
Springer
15 years 5 months ago
2007
Springer
Abstract— We develop a general framework for MAP estimation in discrete and Gaussian graphical models using Lagrangian relaxation techniques. The key idea is to reformulate an in...