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» On the Optimality of Spiral Search
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SIGIR
1999
ACM
15 years 5 months ago
Content-Based Retrieval Using Heuristic Search
The fast growth of multimedia information in image and video databases has triggered research on efficient retrieval methods. This paper deals with structural queries, a type of c...
Dimitris Papadias, Marios Mantzourogiannis, Panos ...
AAAI
2008
15 years 3 months ago
H-DPOP: Using Hard Constraints for Search Space Pruning in DCOP
In distributed constraint optimization problems, dynamic programming methods have been recently proposed (e.g. DPOP). In dynamic programming many valuations are grouped together i...
Akshat Kumar, Adrian Petcu, Boi Faltings
AAAI
2010
15 years 2 months ago
Local Search in Histogram Construction
The problem of dividing a sequence of values into segments occurs in database systems, information retrieval, and knowledge management. The challenge is to select a finite number ...
Felix Halim, Panagiotis Karras, Roland H. C. Yap
TPDS
2008
124views more  TPDS 2008»
15 years 1 months ago
Efficient Breadth-First Search on the Cell/BE Processor
Multicore processors are an architectural paradigm shift that promises a dramatic increase in performance. But, they also bring an unprecedented level of complexity in algorithmic ...
Daniele Paolo Scarpazza, Oreste Villa, Fabrizio Pe...
CIKM
1999
Springer
15 years 5 months ago
Rule-Based Query Optimization, Revisited
We present the architecture and a performance assessment of an extensible query optimizer written in Venus. Venus is a general-purpose active-database rule language embedded in C+...
Lane Warshaw, Daniel P. Miranker