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INFORMATICALT
2008
93views more  INFORMATICALT 2008»
13 years 7 months ago
Robust Watermarking based on Subsampling and Nonnegative Matrix Factorization
Abstract. This paper presents a novel robust digital image watermarking scheme using subsampling and nonnegative matrix factorization. Firstly, subsampling is used to construct a s...
Wei Lu, Hongtao Lu
PAKDD
2009
ACM
124views Data Mining» more  PAKDD 2009»
14 years 2 months ago
Dynamic Exponential Family Matrix Factorization
Abstract. We propose a new approach to modeling time-varying relational data such as e-mail transactions based on a dynamic extension of matrix factorization. To estimate effectiv...
Kohei Hayashi, Junichiro Hirayama, Shin Ishii
IJCNLP
2004
Springer
14 years 1 months ago
A Study of Semi-discrete Matrix Decomposition for LSI in Automated Text Categorization
Abstract. This paper proposes the use of Latent Semantic Indexing (LSI) techniques, decomposed with semi-discrete matrix decomposition (SDD) method, for text categorization. The SD...
Qiang Wang, Xiaolong Wang, Guan Yi
CDC
2009
IEEE
145views Control Systems» more  CDC 2009»
14 years 10 days ago
Consensus of multi-agent systems with an active leader and asymmetric adjacency matrix
Abstract— Multi-agent systems (MAS) have received an increasing attention over the past few years. Here an MAS is a system consisted of multiple interacting intelligent agents. T...
Wanli Guo, Shihua Chen, Jinhu Lu, Xinghuo Yu
EUROPAR
2009
Springer
14 years 7 days ago
Using Hybrid CPU-GPU Platforms to Accelerate the Computation of the Matrix Sign Function
Abstract. We investigate the performance of two approaches for matrix inversion based on Gaussian (LU factorization) and Gauss-Jordan eliminations. The target architecture is a cur...
Peter Benner, Pablo Ezzatti, Enrique S. Quintana-O...