The dynamical evolution of barred galaxies depends crucially on the fraction and their spacial distribution of chaotic orbits in them. In order to distinguish between the two kinds of orbits, we use the Smaller Alignment Index (SALI) method, a very powerful method which can be applied to problems of galactic dynamics. Using model potentials, and taking into account the full 3D distribution of m...

ERCIM NEWS 93 April 2013 50 types that augment a virtual facility with energy consumption information along with spacial characteristics, location and status of equipment, while providing simple ways to control them. Unlike previous work that has largely relied on CAD or VRML for scene generation, this work takes advantage of recent game engine technologies for fast and realtime rendering of fe...

Researchers use file-based Version Control System (VCS) as the primary source of code evolution data. VCSs are widely used by developers, thus, researchers get easy access to historical data of many projects. Although it is convenient, research based on VCS data is incomplete and imprecise. Moreover, answering questions that correlate code changes with other activities (e.g., test runs, refacto...

If the balanced and sustainable urban development is the overall objective of the European Union in spacial planning, each member of the Union as well as those who are willing to join the Union must commit and conduct spacial strategies accordingly. However, such economic and probably social rationales are often ignored in the mist of politics and military. From geopolitics to national strategy...

We propose a spacial communication method between a user and a virtual agent that provide an illusion as if it has a physical presence. In this system, real-time 3DCG agent has been drawn with changing a viewpoint in a virtual space corresponding to the user’s viewpoint detected by face-tracking. The face-tracking can perform this interaction as same as a robot in the real world. We conducted a...

Language learning resources are constantly evolving alongside technology. Computer-Aided Language Learning (CALL) is an area of research that focuses on developing tools to improve the process of learning a language. REAP.PT is a system that aims to teach Portuguese in an appealing way, addressing issues that the user is interested in. Initially conceived for vocabulary learning, this paper pre...