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IFIP
2005
Springer
16 years 9 days ago
Multi-Stage Stochastic Electricity Portfolio Optimization in Liberalized Energy Markets
In this paper we analyze the electricity portfolio problem of a big consumer in a multi-stage stochastic programming framework. Stochasticity enters the model via the uncertain spo...
Ronald Hochreiter, Georg Ch. Pflug, David Wozabal
ISVC
2005
Springer
16 years 9 days ago
Using Linguistic Models for Image Retrieval
This research addresses the problem of image retrieval by exploring the semantic relationships that exist between image annotations. This is done by using linguistic relationships ...
Brian Zambrano, Rahul Singh, Bibek Dev Bhattarai
IWDW
2005
Springer
16 years 9 days ago
The Return of the Sensitivity Attack
The sensitivity attack is considered as a serious threat to the security of spread-spectrum-based schemes, since it provides a practical method of removing watermarks with minimum ...
Pedro Comesaña, Luis Pérez-Freire, F...
WG
2005
Springer
16 years 8 days ago
Extending the Tractability Border for Closest Leaf Powers
The NP-complete Closest 4-Leaf Power problem asks, given an undirected graph, whether it can be modified by at most edge insertions or deletions such that it becomes a 4-leaf powe...
Michael Dom, Jiong Guo, Falk Hüffner, Rolf Ni...
AUSAI
2005
Springer
16 years 8 days ago
Neighborhood Re-structuring in Particle Swarm Optimization
This paper considers the use of randomly generated directed graphs as neighborhoods for particle swarm optimizers (PSO) using fully informed particles (FIPS), together with dynamic...
Arvind S. Mohais, Rui Mendes, Christopher Ward, Ch...