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» Semantics of Data Streams and Operators
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PODS
2007
ACM
142views Database» more  PODS 2007»
16 years 4 months ago
Quasi-inverses of schema mappings
Schema mappings are high-level specifications that describe the relationship between two database schemas. Two operators on schema mappings, namely the composition operator and th...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
DEBS
2007
ACM
15 years 8 months ago
Scalable event matching for overlapping subscriptions in pub/sub systems
Content-based publish/subscribe systems allow matching the content of events with predicates in the subscriptions. However, most existing systems only allow a limited set of opera...
Zhen Liu, Srinivasan Parthasarathy 0002, Anand Ran...
VIS
2004
IEEE
164views Visualization» more  VIS 2004»
16 years 5 months ago
Real-Time Motion Estimation and Visualization on Graphics Cards
We present a tool for real-time visualization of motion features in 2D image sequences. The motion is estimated through an eigenvector analysis of the spatiotemporal structure ten...
Christoph S. Garbe, Robert Strzodka
ICDE
2007
IEEE
174views Database» more  ICDE 2007»
15 years 10 months ago
Adapting Partitioned Continuous Query Processing in Distributed Systems
Partitioned query processing is an effective method to process continuous queries with large stateful operators in a distributed systems. This method typically partitions input da...
Yali Zhu, Elke A. Rundensteiner
SPAA
2010
ACM
15 years 9 months ago
Transactions in the jungle
Transactional memory (TM) has shown potential to simplify the task of writing concurrent programs. Inspired by classical work on databases, formal definitions of the semantics of...
Rachid Guerraoui, Thomas A. Henzinger, Michal Kapa...