Some of the current work is in connection to the Data Management group of SeRC, the Swedish e-Science Research Centre.
Most of my previous work has been in the areas of data integration, knowledge-based information retrieval and knowledge representation.
My book Part-Whole Reasoning in an Object-Centered Framework,
Lecture Notes in Artificial Intelligence 1771, Springer Verlag,
2000, is online at Springer's site.
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For more information see also my annotated bibliography.