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An ambient monitoring system for unsupervised user modelling

Stephen, B. and Petropoulakis, L. (2005) An ambient monitoring system for unsupervised user modelling. Expert Systems with Applications, 28 (3). pp. 557-567. ISSN 0957-4174

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Abstract

This paper describes a means of unsupervised learning of recurring patterns in user activity through patterns in system level events generated by a graphical user interface. Earlier work has shown that using this distillation of the more complex behavioural interaction between the user and the application provides a symbolic representation of knowledge and goals that could be used to imply preference. Although prior research has explored the possibilities of removing this information acquisition bottleneck in such an expert system using ambient monitoring approaches, some have experienced difficulty in dealing with the varying length training sequences and segmentation of the continuous event stream. Unlike previous work the approach documented here handles interactions of varying sizes and is able to recall recurrent patterns in real time irrespective of the number of interactions learned. In addition to describing the proposed approach we also describe the shortcomings of various previously applied machine learning techniques on the same type of data. We also demonstrate a practical implementation of our approach applied to web browser usage.

Item type: Article
ID code: 3507
Keywords: finite state machines, pattern discovery, behaviour modelling, gesture recognition, human computer interaction, user interface, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 18 Jun 2007
    Last modified: 16 Jul 2013 18:50
    URI: http://strathprints.strath.ac.uk/id/eprint/3507

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