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ICMCS
2006
IEEE
187views Multimedia» more  ICMCS 2006»
14 years 3 months ago
A Nonnegative Matrix Factorization Scheme for Digital Image Watermarking
We present a new scheme for digital watermarking and secure copyright protection of digital images using nonnegative matrix factorization and singular value decomposition approach...
Mohammadreza Ghaderpanah, A. Ben Hamza
DEDS
2010
157views more  DEDS 2010»
13 years 7 months ago
On-line Optimal Control of a Class of Discrete Event Systems with Real-Time Constraints
We consider Discrete Event Systems (DES) involving tasks with real-time constraints and seek to control processing times so as to minimize a cost function subject to each task mee...
Jianfeng Mao, Christos G. Cassandras
CORR
2011
Springer
206views Education» more  CORR 2011»
13 years 4 months ago
Arrangement Computation for Planar Algebraic Curves
We present a new certified and complete algorithm to compute arrangements of real planar algebraic curves. Our algorithm provides a geometric-topological analysis of the decompos...
Eric Berberich, Pavel Emeliyanenko, Alexander Kobe...
CSCW
2012
ACM
12 years 5 months ago
Collaboratively crowdsourcing workflows with turkomatic
Preparing complex jobs for crowdsourcing marketplaces requires careful attention to workflow design, the process of decomposing jobs into multiple tasks, which are solved by multi...
Anand Pramod Kulkarni, Matthew Can, Björn Har...
COLOGNETWENTE
2008
13 years 11 months ago
Constrained Decompositions of Integer Matrices and their Applications to Intensity Modulated Radiation Therapy
We consider combinatorial optimization problems arising in radiation therapy. Given a matrix I with non-negative integer entries, we seek for a decomposition of I as a weighted su...
Céline Engelbeen, Samuel Fiorini