Abstract. XML documents are increasingly being used to mark up various kinds of data from web content to scientific data. Often these documents need to be collaboratively created a...
The diversity of spatial information systems promotes the need to integrate heterogeneous spatial or geographic information systems (GIS) in a cooperative environment. This paper ...
In this paper two formal dialectic systems are described, a persuasion protocol (PP0) and a negotiation protocol (NP0), together with a method for shifting from an instance of a pe...
The status quo for co-located groupware is to assume that “social protocols” (standards of polite behavior) are sufficient to coordinate the actions of a group of users; howev...
In a recent study, we have shown that in real-time database systems that discard late transactions, optimistic concurrency control outperforms locking. Although the optimistic alg...