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» The complexity of approximating entropy
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SIGMOD
2005
ACM
166views Database» more  SIGMOD 2005»
16 years 4 months ago
Substructure Similarity Search in Graph Databases
Advanced database systems face a great challenge raised by the emergence of massive, complex structural data in bioinformatics, chem-informatics, and many other applications. The ...
Xifeng Yan, Philip S. Yu, Jiawei Han
146
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UC
2009
Springer
15 years 11 months ago
Brain Dynamics Promotes Function
Abstract. Dynamical structure in the brain promotes biological function. Natural scientists look for correlations between measured electrical signals and behavior or mental states....
Carlos Lourenço
COCO
2005
Springer
123views Algorithms» more  COCO 2005»
15 years 10 months ago
If NP Languages are Hard on the Worst-Case Then It is Easy to Find Their Hard Instances
We prove that if NP ⊆ BPP, i.e., if SAT is worst-case hard, then for every probabilistic polynomial-time algorithm trying to decide SAT, there exists some polynomially samplable ...
Dan Gutfreund, Ronen Shaltiel, Amnon Ta-Shma
XSYM
2004
Springer
129views Database» more  XSYM 2004»
15 years 9 months ago
Fractional XSketch Synopses for XML Databases
A key step in the optimization of declarative queries over XML data is estimating the selectivity of path expressions, i.e., the number of elements reached by a specific navigatio...
Natasha Drukh, Neoklis Polyzotis, Minos N. Garofal...
CDC
2009
IEEE
185views Control Systems» more  CDC 2009»
15 years 9 months ago
Discrete Empirical Interpolation for nonlinear model reduction
A dimension reduction method called Discrete Empirical Interpolation (DEIM) is proposed and shown to dramatically reduce the computational complexity of the popular Proper Orthogo...
Saifon Chaturantabut, Danny C. Sorensen