As ever-larger knowledge bases (KBs) are being built, knowledge sharing becomes an aspect of paramount importance in Knowledge Base Management Systems (KBMSs). In this paper, we propose a way of controlling knowledge sharing by means of the LARS (Locks using Abstraction Relationships’ Semantics) approach for concurrency control in KBs. LARS synchronizes transactions through many different granu...

Professor Lars Mehlum er tildelt Schizofrenidagenes ærespris for sin forskning og sitt arbeid mot stigma.

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This note offers a critique of support for parallelism in Fortran 2008 based on co-arrays. We believe that there are some significant shortcomings in current design of co-array features that affect their suitability for mapping onto a range of parallel systems, expressing a wide range of parallel applications, supporting the development of parallel libraries, and providing an extensible framewo...

Helge Backhaus, Denis Martin, and Hans Wippel attended this year’s IEEE Conference on Local Computer Networks 2009 in Zurich. There they presented a demonstrator based on research of the 4WARD and G-Lab project, as well as the IME graduate school (Fig. 1). The demo was created together with Lars Völker, Peter Baumung, and Benjamin Behringer. Selected concepts of the demonstrator include the des...