Over the past decade, the design of microprocessors has been shifting to a new model where the microprocessor has multiple homogeneous processing units, aka cores, as a result of heat dissipation and energy consumption issues. Meanwhile, the demand for heterogeneity increases in computing systems due to the need for high performance computing in recent years. The current trend in gaining high c...

In this short essay, I consider some relationships between the integrated cognitive-semiotic approach to cartographic representation that I develop in How Maps Work and Jacques Bertin’s contributions to cartographic and graphic theory. I relate my approach to his comprehensive semiologic framework for map and graphic design as well as his efforts toward a structured method of graphic informatio...

The large quantities of data now being transferred via high-speed networks have made deep packet inspection indispensable for security purposes. Scalable and low-cost signature-based network intrusion detection systems have been developed for deep packet inspection for various software platforms. Traditional approaches that only involve central processing units (CPUs) are now considered inadequ...

1. I n t r o d u c t i o n Interactive digitizers are used as input units in conventional geographical information systems because of their high d a t a compression rate, low hardware cost and operational simplicity [I]. However, considerable time and cost are necessary to digitize geographical da ta because of the number of manual operations involved in tracing. These manual operations can be ...

Rational exponential integrators (REXI) are a class of numerical methods that well suited for the time integration linear partial differential equations with imaginary eigenvalues. Since these can be parallelized in (in addition to spatial parallelization is commonly performed) they exploit modern high performance computing systems. In this paper, we propose novel REXI scheme drastically improv...

This paper presents a vectorisation system based on the use of strategic knowledge. This one is composed of two parts: a processing library and a graphic user interface. Our processing library is composed of image preprocessing and vectorisation tools. Our graphic user interface is used for the strategic knowledge acquisition and operationalisation. It allows to construct and to execute scenari...