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The paper develops a model of heuristic negotiation between self-interested agents. The bargaining process involves multi-issue negotiation. The agents are modeling different strategies during negotiation and are able to improve their abilities with experience. The behavior of the agents is directed towards the gain obtained when the goals are satisfied. The details of the previous interactions are...
Given a model of the environment's behaviour, a set of system goals, and a set of controllable actions, the controller synthesis problem is to automatically generate a controller that only restricts controllable actions. Qualitative controller synthesis techniques yield controllers that guarantee achieving a given goal in the presence of an adversarial environment. However, synthesis produces one...
We introduce a preferences-based itemset mining framework. Preferences are encoded by a penalty function over the transactions in a database. We define an itemset mining problem where we associate to each transaction a penalty value. This problem consists in generating the frequent itemsets with a maximum penalty threshold. We then provide a propositional satisfiability based encoding. We extend the...
Applications stored in the cloud enable users to access and perform tasks in real time, reducing costs in the acquisition of computer resources. Although there are benefits, this paradigm also brings security and privacy risks to users, such as theft of information or identity. This paper proposes a mechanism able to provide privacy protection for users to use applications that address issues of identity,...
In this paper, a new formulation of assignment problem taking into account both operator competences and individual preferences is presented. The integration of the aforementioned factors in the objective function of the proposed formulation is described. In the current work the dependence between competence and processing time is expressed by a coefficient that represents the degree of closeness...
The aim of this paper is to study how preferences, which are used to model intrinsic strengths of arguments, can be used in argumentation. We show that they play two roles: i) to repair the attack relation between arguments, and ii) to refine the evaluation of arguments. Then, we point out that the existing approaches for preference-based argumentation model only the first role. They may also return...
In light of the present situation research on learner model in adaptive learning system at home and abroad, this paper has put forward a new learner model to achieve self-organization and push of learning resources on the basis of learning goals and learner's personal conditions. It includes knowledge level module, cognitive ability module and preferences module. We respectively introduce the representation...
Content recommendation in Web based educational systems aims to provide references to didactic and educational resources, attending the individual necessities of the students. This paper presents an approach for content recommendation based on three metrics, the interest a user has on resources, her or his preferences over the resources and the popularity of resources. The interest is get implicitly...
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