Autonomous robots must be able to learn and maintain models of their environments. Research on mobile robot navigation has produced two major paradigms for mapping indoor environments: grid-based and topological. While grid-based methods produce accurate metric maps, their complexity often prohibits efficient planning and problem solving in large-scale indoor environments. Topological maps, on ...

Autonomous mobile robots rely on multiple sensors to perform a varied number of tasks in a given environment. Diierent tasks may need diierent sensors to estimate diierent subsets of world state. Also, diierent sensors can cooperate in discovering common subsets of world state. This paper presents a new approach to multimodal sensor fusion using dynamic Bayesian networks and an occupancy grid. ...

vIsIon Grid computing is an emerging technology providing the possibility to aggregate resources for the solution of computation-or data-intensive scientific BLOCKINtasks. BLOCKINTaking BLOCKINthe BLOCKINevolution BLOCKINof BLOCKINmobile computing into consideration, new Grid concepts are conceivable, fully exploiting the advantage of mobile devices and ubiquitous access. By decoupling resource...

The Grid Technology and Data Warehousing concepts are applied in the architecture of Grid-based Mobile Phone Fraud Detection System (GFDS) which enables online-analysis, rule-based decision support and automatic reaction for fraud detection and elimination. The GFDS system is built upon a set of Open Grid Service Infrastructure (OGSI)-based grid services and Globus Toolkit 3 (GT3) allows to con...

We describe an environment for the distributed solution of iterative grid-based applications. The environment is built using the MESSENGERS mobile agent system. The main advantage of paradigm-oriented distributed computing is that the user only needs to specify applicationspecific sequential code, while the underlying infrastructure takes care of the parallelization and distribution. The two pa...

In the paper we aim to describe the project developing the Migrating Desktop infrastructure for the mobile users in a simple way. We also focus on the development testbed, which is prepared for the testing purposes of the runtime environment. This functionality refers to the work environment of the users, which change their location very often. The mobility term refers to the users, which use t...

The new vision of computing projects is a multitude of computers surrounding people. The ubiquitous environment is to support people in their daily activity in an inconspicuous and unobtrusive way. This requires that information of the person and his or her preferences, liking, and habits are available in the ubiquitous system. Mobile agents can be one of those things which can answer these nee...

This paper addresses the local grid map-building problem. Sensor readings are interpreted using a feedforward neural network, and a Bayesian rule is used to update the occupancy probabilities of the grid cells. A comparison of three neural network configurations is made in the map building of indoor environments, using the sonar sensors of the Nomad 200 simulator. The architecture with best res...

The increasing pervasiveness of wide-area distributed computing resources, like computational Grids, has given rise to applications that have inherent problems of complexity, adaptability, dynamism and heterogeneity etc. The emerging concept of autonomic computing holds the key to the selfmanagement of such a multifarious undertaking and provides a way to further build upon this complexity with...

In this article we aim to describe the project developing the Migrating Desktop infrastructure for itinerants in a simple way. We also focus on the development testbed, which is prepared for the testing purposes of the runtime environment This functionality refers to the work environment of the users which change their location very often. The Roaming Access (RAS) infrastructure is the set of m...