Cooperative Search Engine (CSE) is a distributed search engine, which can update indexes in very short time for the purpose of fresh information retrieval. In CSE, the retrieval p...
Abstract. We introduce the notion of persistent authenticated dictionaries, that is, dictionaries where the user can make queries of the type “was element e in set S at time t?â€...
Aris Anagnostopoulos, Michael T. Goodrich, Roberto...
This paper gives an overview of RadioActive, a largescale asynchronous audio messaging platform for mobile devices. It supports persistent chat spaces that allow users to engage i...
Many information systems store their objects in a relational database. If the object schema or the relational schema of an application can change often or in an independent way, it...
It is well known that a crucial property for the effective identification of time-varying systems is that the data carry continual information on the parameters to be estimated. As...