Abstract. Good estimates of join result sizes are critical for query optimization in relational database management systems. We address the problem of incrementally obtaining accur...
Abstract. Exception handling is a well-established mechanism in sequential programming. Concurrency and asynchronous calls introduce the possibility for multiple simultaneous excep...
Abstract. When dealing with distributed systems, one of the most important problems that has to be addressed is concurrency. Distributed systems are inherently concurrent, distribu...
Abstract. The SPARQL Query Language allows filtering of query results through arbitrary predicate expressions. Such expressions may invoke custom functions identified with IRIs, ...
Abstract. Description logics (DLs) are a well-known family of knowledge representation (KR) languages. The notation of DLs has the style of a variable-free first order predicate l...