According to a survey of the University of Berkeley [6], about 5 Exabytes of new information has been created in 2002. This information explosion affects also the database volumes...
Abstract--Presence, broadly defined as an event publishnotification infrastructure for converged applications, has emerged as a key mechanism for collecting and disseminating conte...
We study the satisfiability problem associated with XPath in the presence of DTDs. This is the problem of determining, given a query p in an XPath fragment and a DTD D, whether or...
Peer-to-peer (P2P) systems are gaining increasing popularity as a scalable means to share data among a large number of autonomous nodes. In this paper, we consider the case in whic...
We extend Haskell with regular expression patterns. Regular expression patterns provide means for matching and extracting data which goes well beyond ordinary pattern matching as ...