Title
A subjective logic formalisation of the principle of polyrepresentation for information needs.
Abstract
Interactive Information Retrieval refers to the branch of Information Retrieval that considers the retrieval process with respect to a wide range of contexts, which may affect the user's information seeking experience. The identification and representation of such contexts has been the object of the principle of Polyrepresentation, a theoretical framework for reasoning about different representations arising from interactive information retrieval in a given context. Although the principle of Polyrepresentation has received attention from many researchers, not much empirical work has been done based on it. One reason may be that it has not yet been formalised mathematically. In this paper we propose an up-to-date and flexible mathematical formalisation of the principle of Polyrepresentation for information needs. Specifically, we apply Subjective Logic to model different representations of information needs as beliefs marked by degrees of uncertainty. We combine such beliefs using different logical operators, and we discuss these combinations with respect to different retrieval scenarios and situations. A formal model is introduced and discussed, with illustrative applications to the modelling of information needs.
Year
Venue
Keywords
2010
Proceedings of the third symposium on Information interaction in context
information needs,different retrieval scenario,information retrieval,retrieval process,empirical work,polyrepresentation,information need,subjective logic formalisation,interactive information retrieval,different representation,different logical operator,subjective logic,formal model
Field
DocType
Volume
Data mining,Cognitive models of information retrieval,Subjective logic,Information needs,Human–computer information retrieval,Information retrieval,Information seeking,Computer science,Relevance (information retrieval),Operator (computer programming)
Conference
abs/1704.01610
Citations 
PageRank 
References 
10
0.45
43
Authors
4
Name
Order
Citations
PageRank
Christina Lioma139139.58
Birger Larsen294455.00
Hinrich Schuetze3332.73
PETER INGWERSEN42192291.28