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122
Voted
JDWM
2010
15 years 6 days ago
2010
Social networks and collaborative tagging systems are rapidly gaining popularity as a primary means for storing and sharing data among friends, family, colleagues, or perfect stra...
155
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DBPL
1993
Springer
15 years 5 months ago
1993
Springer
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...
107
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AI
2010
Springer
15 years 1 months ago
2010
Springer
We consider soft constraint problems where some of the preferences may be unspecified. This models, for example, settings where agents are distributed and have privacy issues, or ...
JASIS
2006
15 years 1 months ago
2006
156
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SIGMOD
2007
ACM
16 years 1 months ago
2007
ACM
Data-intensive e-science applications often rely on third-party data found in public repositories, whose quality is largely unknown. Although scientists are aware that this uncert...