Titlebook: Database Theory - ICDT ‘95; 5th International Co Georg Gottlob,Moshe Y. Vardi Conference proceedings 1995 Springer-Verlag Berlin Heidelberg

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Order Effects within Personality Measuresprocessing of data. The second one is called . and it corresponds to data-parallel processing. A uniform first-order translation from . into . was known from previous work. The converse translation is by necessity more difficult and we have obtained three main results concerning it. First, we exhibi

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https://doi.org/10.1007/978-1-4612-2848-6sponding finite set operations (data base queries) may be realized in NLOGSPACE under representation of sets by extensional well-founded (acyclic) graphs. (In a previous work for another version of .-language an exact correspondence to PTIME-computability was established.) Moreover, each of the ment

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Context and Connection in Metaphorive correctness criteria that encompass both serializability and failure atomicity in a uniform manner. As it turns out, an exact characterization of the class of prefix reducible schedules that was introduced for the simple read/write model in [AVA+94] is infeasible. Thus, we propose here two subcl

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Natasa Milic-Frayling,Rachel Jonesn invested in optimizing its performance. The . (D2PC) protocol is an enhancement of the common (static) . (T2PC) protocols. Unlike T2PC, with D2PC the commit coordinator is dynamically determined by racing READY (YES vote) messages, on a per transaction basis, rather than being fixed, predetermined

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Natasa Milic-Frayling,Rachel Jonestatype. We introduce an algebra for ., which generalizes traditional algebras for (nested) sets, bags and lists. This paper is motivated by the study of the impact of different language primitives on the expressive power. We show that the use of partially ordered types increases the expressive power

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Web 2.0 and Network Intelligence chosen semantics for value invention is based on Skolem functor terms. We show that, in presence of value invention, the whole expressive power is achieved using programs made of two strata, and that ILOG. (i.e., the class of programs with non-equality and without negation) express the downward mon