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» Answering Aggregation Queries in a Secure System Model
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MOBISYS
2007
ACM
14 years 7 months ago
A time-and-value centric provenance model and architecture for medical event streams
Provenance becomes a critical requirement for healthcare IT infrastructures, especially when pervasive biomedical sensors act as a source of raw medical streams for large-scale, a...
Min Wang, Marion Blount, John Davis, Archan Misra,...
IJCAI
1989
13 years 9 months ago
Logic Programming with General Clauses and Defaults Based on Model Elimination
The foundations of a class of logic programming systems with the expressive power of full first-order logic and a non-monotonic component is addressed. The underlying refutation m...
Marco A. Casanova, Ramiro A. de T. Guerreiro, Andr...
SIGMOD
2003
ACM
127views Database» more  SIGMOD 2003»
14 years 7 months ago
Closing the key loophole in MLS databases
: There has been an abundance of research within the last couple of decades in the area of multilevel secure (MLS) databases. Recent work in this field deals with the processing of...
Nenad Jukic, Svetlozar Nestorov, Susan V. Vrbsky
LAWEB
2005
IEEE
14 years 1 months ago
Incentive Networks
The concurrent growth of on-line communities exhibiting large-scale social structure, and of large decentralized peer-to-peer file-sharing systems, has stimulated new interest in...
Prabhakar Raghavan
VLDB
2008
ACM
140views Database» more  VLDB 2008»
14 years 8 months ago
Efficient temporal counting with bounded error
This paper studies aggregate search in transaction time databases. Specifically, each object in such a database can be modeled as a horizontal segment, whose y-projection is its s...
Yufei Tao, Xiaokui Xiao