A number of document similarity metrics have been used to measure the degree of web page changes. When a web page changes, the metrics often represent the change differently. In this paper, we first define criteria for evaluating the effectiveness of the metrics in terms of six important types of web page changes. The criteria satisfy ISO/IED 15408 (CC). Second, we propose a new document simila...

Many collaborative multi-robot application domains have limited areas of operation that cause spatial conflicts between robotic teammates. These spatial conflicts can cause the team’s productivity to drop with the addition of robots. This phenomenon is impacted by the coordination methods used by the team-members, as different coordination methods yield radically different productivity results....

When all but one coordinates are cyclic in a (conservative) Hamiltonian formulated in the extended phase space, the Hamilton-Jacobi equation is used to compute canonical transformations allowing for Hamiltonian reduction. The procedure includes regularization and provides whole families of canonical transformations, among which one recognizes the familiar ones used in orbital and attitude dynam...

We discuss iterative methods for the solution of the linear system Ax = b, which are based on a single splitting or a multisplitting of A. In order to compare diierent methods , it is common to compare the spectral radius of the iterative matrix. For M{matrices A and weak regular splittings there exist well-known comparison theorems. Here, we give a comparison theorem for splittings of Hermitia...