The paper presents an intelligent GIS architecture that enables us to extend GIS functionality by using domain specific knowledge and inference engine. In this architecture, an intelligent agent monitors events, which occur in the GIS environment, and execute tasks depending on user’s actions. The intelligent agent includes an expert system shell and knowledge base. A hybrid knowledge represent...

In this paper, different steganographic methods have been analyzed and implementations of those techniques have been performed. Those methods include hiding in text, hiding in audio file, hiding in file system, and hiding in image files.

This paper is devoted to a practical implementation of deterministic particle methods for solving transport equations with discontinuous coefficients and/or initial data, and related problems. In such methods, the solution is sought in the form of a linear combination of the delta-functions, whose positions and coefficients represent locations and weights of the particles, respectively. The loc...

In order to plan observing and calibration programs with SIRTF, one of the important ingredients is the absolute brightness of the sky at the time and place of observation. In particular, to judge the feasibility of detection of astronomical sources in the presence of strong foreground signals from the zodiacal light and interstellar cirrus, observers and the science team will require knowledge...

Multiscale methods for second order elliptic equations based on non-overlapping domain decomposition schemes have great potential to take advantage of multi-core, state-of-the-art parallel computers. These typically involve solving local boundary value problems followed by the solution a global interface problem. Known iterative procedures problem slow convergence, increasing overall cost multi...