Istituto di Scienza e Tecnologie dell'Informazione     
Tzitzikas Y., Meghini C., Spyratos N. A Unifying Framework for Flexible Information Access in Taxonomy-based Sources. In: International Conference On Flexible Query Answering Systems (FQAS) (Lyon, France, June 2004). Proceedings, pp. 161 - 174. (Lecture Notes in Computer Science, vol. 3055). Springer verlag, 2004.
A taxonomy-based source consists of a taxonomy and a database storing objects that are indexed in terms of the taxonomy. For this kind of sources, we describe a flexible interaction scheme that allows users to retrieve the objects of interest without having to be familiar with the terms of the taxonomy or with the supported query language. Specifically we describe an interaction manager whose functionality unifies several well-known interaction schemes including query by example, answer enlargement/reduction, query relaxation/ restriction, index relaxation/contraction, feedback and adaptation mechanisms.
Subject Information Systems
H.1 Models and Principles

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