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dc.contributor.authorChhogyal, Kin
dc.contributor.authorNayak, Abhaya
dc.contributor.authorSchwitter, Rolf
dc.contributor.authorSattar, Abdul
dc.contributor.editorMoyez Jiwa
dc.date.accessioned2018-11-09T12:32:58Z
dc.date.available2018-11-09T12:32:58Z
dc.date.issued2012
dc.date.modified2013-03-21T00:34:51Z
dc.identifier.issn1836-1935
dc.identifier.doi10.4066/AMJ.2012.1392
dc.identifier.urihttp://hdl.handle.net/10072/49677
dc.description.abstractBackground Causal models of physiological systems can be immensely useful in medicine as they may be used for both diagnostic and therapeutic reasoning. Aim In this paper we investigate how an agent may use the theory of belief change to rectify simple causal models of changing blood sugar levels in diabetes patients. Method We employ the semantic approach to belief change together with a popular measure of distance called Dalal distance between different state descriptions in order to implement a simple application that simulates the effectiveness of the proposed method in helping an agent rectify a simple causal model. Results Our simulation results show that distance-based belief change can help in improving the agent's causal knowledge. However, under the current implementation there is no guarantee that the agent will learn the complete model and the agent may at times get stuck in local optima. Conclusion Distance-based belief change can help in refining simple causal models such as the example in this paper. Future work will include larger state-action spaces, better distance measures and strategies for choosing actions.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent296388 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherAustralasian Medical Journal
dc.publisher.placeAustralia
dc.publisher.urihttp://www.amj.net.au/index.php/AMJ/article/view/1392
dc.relation.ispartofstudentpublicationY
dc.relation.ispartofpagefrom497
dc.relation.ispartofpageto502
dc.relation.ispartofissue9
dc.relation.ispartofjournalAustralasian Medical Journal
dc.relation.ispartofvolume5
dc.rights.retentionY
dc.subject.fieldofresearchAdaptive Agents and Intelligent Robotics
dc.subject.fieldofresearchClinical Sciences
dc.subject.fieldofresearchPublic Health and Health Services
dc.subject.fieldofresearchcode080101
dc.subject.fieldofresearchcode1103
dc.subject.fieldofresearchcode1117
dc.titleA causal model for fluctuating sugar levels in diabetes patients
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, School of Information and Communication Technology
gro.rights.copyright© The Author(s) 2012. The attached file is reproduced here in accordance with the copyright policy of the publisher. For information about this journal please refer to the journal’s website or contact the authors.
gro.date.issued2012
gro.hasfulltextFull Text
gro.griffith.authorSattar, Abdul
gro.griffith.authorChhogyal, Kin


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