Istituto di Scienza e Tecnologie dell'Informazione     
Meghini C., Tzitzikas Y., Spyratos N. Towards a Generalized Interaction Scheme for Information Access. In: International Symposium on Foundations of Information and Knowledge (Vienna, Austria, 2-17 February 2004). Proceedings, pp. 291 - 301. (Lecture Notes in Computer Science, vol. 2942). Springer Verlag, 2004.
We introduce the formal framework of a generalized interaction scheme for information access between users and information sources. Within this framework we describe an interaction manager which supports more complex interaction schemes than those that are supported by existing systems, including: query by example, answer enlargement/reduction, query relaxation/restriction, index relaxation/contraction, 'relevance' feedback, and adaptation facilities. We give the foundations of this interaction manager from a mathematical point of view, in terms of an abstract view of an information source.
Subject Information Systems
H.1 Models and Principles

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