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- David Saad
- 2002

Several problems in statistical physics, information sciences or neural computing require probabilistic modeling of multivariable systems composed of a large number of variables. Typically, the exactâ€¦ (More)

- StÃ©phane Bounkong, BorÃ©mi Toch, David Saad, David B. Lowe
- Journal of Machine Learning Research
- 2003

We present a domain-independent ICA-based approach to watermarking. This approach can be used on images, music or video to embed either a robust or fragile watermark. In the case of robustâ€¦ (More)

- Jason A. S. Freeman, David Saad
- Neural Computation
- 1995

The two-layer radial basis function network, with fixed centers of the basis functions, is analyzed within a stochastic training paradigm. Various definitions of generalization error are considered,â€¦ (More)

â€“ We employ two different methods, based on belief propagation and TAP, for decoding corrupted messages encoded by employing Sourlasâ€™s method, where the code word comprises products of K bitsâ€¦ (More)

- Ido Kanter, David Saad
- 2002

Efficient information transmission plays a central role in modern society, taking a variety of forms, from telephone and satellite communication to storing and retrieving information on disk-drives.â€¦ (More)

- K. Y. Michael Wong, David Saad
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2006

We study the equilibrium states of energy functions involving a large set of real variables, defined on the links of sparsely connected networks, and interacting at the network nodes, using theâ€¦ (More)

- Kin-Yau Wong, David Saad
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2007

Inference and optimization of real-value edge variables in sparse graphs are studied using the Bethe approximation and replica method of statistical physics. Equilibrium states of general energyâ€¦ (More)

- Jack Raymond, David Saad
- ArXiv
- 2007

Sparse Code Division Multiple Access (CDMA), a variation on the standard CDMA method in which the spreading (signature) matrix contains only a relatively small number of non-zero elements, isâ€¦ (More)

- Renato Vicente, David Saad, Yoshiyuki Kabashima
- Physical review. E, Statistical physics, plasmasâ€¦
- 1999

We investigate the performance of parity check codes using the mapping onto Ising spin systems proposed by Sourlas [Nature (London) 339, 693 (1989); Europhys. Lett. 25, 159 (1994)]. We study codesâ€¦ (More)

- Ido Kanter, David Saad
- 2002

The efficacy of a specially constructed Gallager-type errorcorrecting code to communication in a Gaussian channel is being examined. The construction is based on the introduction of complex matrices,â€¦ (More)