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Case-based reasoning for matching SMARTHOUSE technology to people's needs.

Wiratunga, Nirmalie; Craw, Susan; Taylor, Bruce; Davis, Genevieve


Bruce Taylor

Genevieve Davis


SMARTHOUSE technology offers devices that help the elderly and people with disabilities to live independently in their homes. This paper presents our experiences from a pilot project applying case-based reasoning techniques to match the needs of the elderly and those with disabilities to SMARTHOUSE technology. The SMARTHOUSE problem is decomposed into sub-tasks, and generalised concepts added for each sub-task. This decomposition and generalisation enables multiple case reuse employing a standard decision tree index based iterative retrieval strategy. Documented real situations are used to create a small case base. An initial prototype is evaluated empirically using leave-one-out testing, and separately with the domain expert on newly created test cases. Results show that system generated solutions to be comparable to those of a domain expert. Importantly, the iterative retrieval strategy employing multiple indices generated solutions that were significantly better compared to a one-shot retrieval without indices.


WIRATUNGA, N., CRAW, TAYLOR, B. and DAVIS, G. 2004. Case-based reasoning for matching SMARTHOUSE technology to people's needs. Knowledge-based systems [online], 17 (2-4), pages 139-146. Available from:

Journal Article Type Article
Acceptance Date Dec 31, 2004
Online Publication Date Dec 31, 2004
Publication Date May 31, 2004
Deposit Date Mar 21, 2007
Publicly Available Date Mar 21, 2007
Journal Knowledge-based systems
Print ISSN 0950-7051
Electronic ISSN 1872-7409
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 17
Issue 2-4
Pages 139-146
Keywords Cased based reasoning; SMARTHOUSE technology; Multiple indexed retrieval; Concept generalisation
Public URL


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