This paper describes a game-theoretic methodology to design and embed watermarks in images. The optimality criterion is probability of error of the decoder. Analytical solutions are presented for problems involving Gaussian host images and illustrated with examples. Significant improvements over previous designs are obtained.

In this paper we consider the computation of channel capacity for ergodic multiple-input multiple-output channels with additive white Gaussian noise. Two scenarios are considered. Firstly, a time-varying channel is considered in which both the transmitter and the receiver have knowledge of the channel realization. The optimal transmission strategy is water-filling over space and time. It is sho...

Spatiotemporal dynamics are introduced in a standard Ramsey model of optimal growth which capital moves towards locations where the marginal productivity capita is relatively higher. We extend Pontryagin's maximum principle to account for transition governed by nonlinear partial differential equation emerging spatial flows. The potential heterogeneity as seen from point view an optimizing socia...

Economists were interested in economic stabilization policies as early as the 1930’s but the formal applications of stability theory from the classical control theory to economic analysis appeared in the early 1950’s when a number of control engineers actively collaborated with economists on economic stability and feedback mechanisms. The theory of optimal control resulting from the contributio...

this study presents an overview of the different strategies that persian learners of english employ to deal with initial clusters. while vowel epenthesis appears to be the most widespread repair strategy to conform such clusters to persian phonotactics, the location of the epenthetic vowel varies. in this paper, we investigate two approaches that seek to explain the epenthetic site. the first o...