A Feedback Mechanism for Query by Navigation.
Florian Berger, Theo P. van der Weide · 1995
The Two-Level Hypermedia Paradigm sees an Information Retrieval System as consisting of a document network (the Hyperbase) and a descriptor (term) network (the Hyperindex). Query by Navigation is a process whereby the searcher gives a description of the Information Need by travelling through the descriptor network. This paper presents a formalism for expressing the effects of traversing the Hyperindex on the elements of the Hyperindex. This formalism makes use of probabilities for modelling the searcher's behavious. The events which can occur during the search process are discussed and modelled. Some important properties, which are reasonable to demand of a retrieval system, can be proven to be valid if this formalism is adopted. A mechanism for assigning a measure of relevance to documents is presented. This uses the formalism mentioned above. An example will show the effectiveness of The aspect of relevance feedback and its role in Query by Navigation is introduced by examining the d...