A common goal in the areas of secure information flow and privacy is to build effective defenses against unwanted leakage information. To this end, one must be able reason about potential attacks their interplay with possible defenses. In article, we propose a game-theoretic framework formalize strategies attacker defender context leakage, provide basis for developing optimal defense methods. n...

We deal with decisions under risk starting from a partial preference relation on a finite set of generalized convex lotteries, that are random quantities equipped with a convex capacity. A necessary and sufficient condition (Choquet rationality) is provided for its representability as a Choquet expected utility of a strictly increasing utility function. The restriction to concave utility functi...

We consider two types of grouping among users in utility systems. The first type of grouping is from Chen et al. (2014), where each user belongs to a group of users having social ties with it. For this type of utility system, each user’s strategy maximizes its social group utility function, giving rise to the notion of social-aware Nash equilibrium. We prove that, for a valid utility system, if...

since the rate of return on different opportunities for investment is random, the optimal distribution of ones capital is put foreward as a stochastic control problem. in this paper, using modem techniques in the theory of random functions and the stochsatic calculus, the problem is discussed for the case when the information possessed by the different investors, as well as their probability be...

The object of this paper is to revisit the results of P. Bernhard (J. Optim. Theory Appl. 27 (1979), 51–69) on two-person zero-sum linear quadratic differential games and generalize them to utility functions without positivity assumptions on the matrices acting on the state variable and to linear dynamics with bounded measurable data matrices. The paper specializes to state feedback via Lebesgu...

We propose a theory of feelings about uncertainty that has implications for preferences about acquiring or avoiding information as well as for preferences about exposure to uncertainty (i.e., risk or ambiguity). Our theoretical framework allows utility to depend not just on material payoffs but also on beliefs and the attention devoted to them. We use this framework to introduce the concept of ...

We propose a new architectural model to deal with applications where the input space is very complex and highdimensional. This solution is inspired from a classical connectionist approach and avoids saturation [5] due to the use of another connectionist structure, for memory storage. This model is very usefull for control problems where input spaces are often complex and heterogeneous.

Biconcavity is a simple condition on inverse demand that corresponds to the ordinary concept of concavity after simultaneous parameterized transformations of price and quantity. The notion is employed here in the framework of the homogeneous-good Cournot model with potentially heterogeneous firms. The analysis leads to unified conditions, respectively, for the existence of a pure-strategy equil...

We show the robustness of the Walrasian result obtained in models of bargaining in pairwise meetings. Restricting trade to take place only in pairs, most of the assumptions made in the literature are dispensed with. These include assumptions on preferences (differentiability, monotonicity, strict concavity, bounded curvature), on the set of agents (dispersed characteristics) or on the consumpti...

Preferences and endowments. Consider a static endowment economy populated by a continuum of households. The households have identical preferences expressed by a strictly increasing strictly concave utility function U(c) over a single consumption good. The households have heterogeneous endowments y ∈ [0,∞) of this single consumption good distributed with density f(y) > 0 in the population. Let Y...