This paper describes a general purpose system based on elementary motion and rigid-body detection that is able to efficiently segment moving objects using a sparse map of features from the visual field. FPGA implementation allows real-time image processing on an embedded system. The modular design allows to add other modules and to use the system in very diverse applications.

Abs t rac t . DeleGate is a general purpose application level gateway which relays a variety of application protocols on the Interllet~ including HTTP, FTP, Gopher, WAIS, NNTP, SMTP, POP, Telllet, X Window and CUSeeMe. It overcomes a variety of obstacles on the Internet caused by barriers for security, insufficient band width and mismatching among protocol specifications and implementations. An...

General-purpose computing devices allow us to (1) customize computation after fabrication and (2) conserve area by reusing expensive active circuitry for different functions in time. We define RP-space, a restricted domain of the general-purpose architectural space focussed on reconfigurable computing architectures. Two dominant features differentiate reconfigurable from special-purpose archite...

Flash memory is a semiconductor memory technology that has interesting price, performance, and semantic tradeoffs. We have developed Gordon, a general-purpose persistence system for Standard ML that uses Flash mapped into the virtual address space as its stable storage medium. Flash supports a write-once/bulk-erase interface that makes it difficult to support update-inplace semantics. In additi...

This paper addresses the problem of probabilistic reasoning as it applies to Truth Maintenance Systems. A Belief Maintenance System hal! been constructed which manages a current set of probabilistic beliefs in much the same way that a TMS manages a set of true/false beliefs. Such a system may be thought of as a generalization of a. Truth Maintenance System. It enables one to reason using normal...

Modeling is an important part of the software development process because it allows for a better understanding of the domain as well as an understanding of the software structure and function. Among general-purpose modeling languages dominate the graphical ones such as UML; textual modeling languages are not as popular though they have a big potential. In this paper we define the important feat...

This paper argues that there is a need for routers to move from being closed, special-purpose network devices to being open, general-purpose computing/communication systems. The central challenge in making this shift is to simultaneously support increasing complex forwarding logic and high performance, while using commercial hardware components and open operating systems. This paper introduces ...

Parallel computing has become an important research field in the last years. The availability of hardware and the success of grid computing have motivated this interest. In this paper we present a new approach for managing parallel environments in a grid-like manner using agent technologies. Multiagent systems provide an added value to standard grid approaches due to their high level abstractio...

We describe the evaluation process of HyperContext, a framework for general-purpose adaptive and adaptable hypertext. In particular, we are interested in users’ short-term, transient, interests. We cannot make any prior assumptions about a user’s interest or goal, as we do not have any prior knowledge of the user. We conducted evaluations on two aspects of HyperContext. One evaluation was compl...

This paper focuses on the language processing tool being developed at our centre and briefly describes two of its applications. CATCG, our morphosyntactic analyser, is designed to deal with general written Catalan text. In CATCG the whole processing task has been divided into specific subtasks and for each one of them we try to apply the best strategy available. The most relevant properties of ...