RVO Task force "Technologies of RVO information structures" (IPI RAS) news:

1) AstroGrid installations at IPI RAS and at the Joint Supercomputer Center are updated to the version 2007.1.

2) Data mining facilities of Weka oriented on usage of ensemble of classification algorithms (called Ensembled Weka) has been incorporated into AstroGrid as CEA-application that takes for input a task description file and a catalogue. The result of ensemble application is returned to MySpace. This result can be used as an input for further steps of a workflow. Implementation of Ensembled Weka in AstroGrid has been checked applying it for the eclipsing binaries classification.

3) A work on extension of AstroGrid with Semantic Information Integration Capability is under way. The paradigm used is a "scientific problem driven"approach that assumes creation of "subject mediators" that support an interaction between a researcher and resources applying a description of the problem domain (description of the mediator) that is given in an abstract terms without any explicit references to the relevant data or service resources. This paradigm has various benefits comparing to the resource driven information integration approach that dominates now.

The first prototype of the mediation infrastructure has been developed and checked applying it to a distant galaxy discovery problem. A mediator prototype can be configured for solving of any other problems specifying espective mediators. A work of synergy of the mediation infrastructure with the AstroGrid is planned to be completed this year to start experimentation with real problems specification and solving in such environment.