The development of collaborative environments that not only manage information and communication, but also support the actual work processes of organisations is very important. XML...
We consider the problem of information retrieval in a peerto-peer file sharing system. We assume that peers are unreliable, metadata are sparse, and queries are short. In light o...
Management of various complex resources is an important issue to be well done, in order to fulfill the potential of Grid. In this paper, we propose a formal data model and algebra ...
Edge detection in computer vision and image processing is a process which detects one kind of signi cant features appearing as discontinuities in intensities. A parallel edge detec...
This paper examines motivations of knowledge workers to contribute expertise to online knowledge repositories that support informal learning, and presents findings from both a sur...