Gesellschaft fr Informatik e.V.

Lecture Notes in Informatics


Informatik 2004, Informatik verbindet, Band 2, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), Ulm, 20.-24. September 2004 P-51, 176-181 (2004).

GI, Gesellschaft für Informatik, Bonn
2004


Editors

Peter Dadam, Manfred Reichert (eds.)


Copyright © GI, Gesellschaft für Informatik, Bonn

Contents

On the construction of a probabilistic model for assessing users' beliefs in an information environment

Eric Schwarzkopf

Abstract


We are developing an interaction environment for information portals in which users can create their own personal knowledge bases to store and define relationships between retrieved items. In this paper, we present our approach for combining these personal knowledge bases to a knowledge base for the entire user community that is to be used as part of an automatic recommendation system. We utilize a probabilistic model for assessing how strongly a single user's definition (or lack thereof) of a relationship should influence the system's belief in the relationship. The latter is revised using Pearl's method of uncertain evidence.


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GI, Gesellschaft für Informatik, Bonn
ISBN 3-88579-3080-6


Last changed 24.01.2012 21:47:11