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PRL
2006
92views more  PRL 2006»
15 years 6 months ago
A Bayes-spectral-entropy-based measure of camera focus using a discrete cosine transform
In this paper we present a novel measure of camera focus based on the Bayes spectral entropy of an image spectrum. In order to estimate the degree of focus, the image is divided i...
Matej Kristan, Janez Pers, Matej Perse, Stanislav ...
FOCS
2006
IEEE
16 years 17 days ago
Lower Bounds for Additive Spanners, Emulators, and More
An additive spanner of an unweighted undirected graph G with distortion d is a subgraph H such that for any two vertices u, v ∈ G, we have δH(u, v) ≤ δG(u, v) + d. For every...
David P. Woodruff
ESA
2004
Springer
129views Algorithms» more  ESA 2004»
15 years 12 months ago
Contraction and Treewidth Lower Bounds
Edge contraction is shown to be a useful mechanism to improve lower bound heuristics for treewidth. A successful lower bound for treewidth is the degeneracy: the maximum over all ...
Hans L. Bodlaender, Arie M. C. A. Koster, Thomas W...
HICSS
2003
IEEE
110views Biometrics» more  HICSS 2003»
15 years 11 months ago
Modeling Web Applications Using Java and XML Related Technologies
The purpose of this paper is to propose visual models for a web application using Java and XML related technologies. We consider a web application that uses 3tier architecture and...
Sam Chung, Yun Sik Lee
SEMWEB
2005
Springer
15 years 12 months ago
Ontology Design Patterns for Semantic Web Content
The paper presents a framework for introducing design patterns that facilitate or improve the techniques used during ontology lifecycle. Some distinctions are drawn between kinds o...
Aldo Gangemi