This paper studies security for data aggregation in sensor networks. Current aggregation schemes were designed without security in mind and there are easy attacks against them. We...
Abstract. This work introduces a new interaction framework for dynamic virtual environments. The proposed system is designed to deal with all possible interactions in a virtual wor...
Currently, most of the web is inaccessible to mobile users. Few pages are designed with anything other than the Desktop PC in mind. The growing number of mobile devices with diffe...
We study the convex hull of the feasible set of the semi-continuous knapsack problem, in which the variables belong to the union of two intervals. Besides being important in its o...
Abstract. In argumentation theory, Dung’s abstract framework provides a unifying view of several alternative semantics based on the notion of extension. Recently, a new semantics...