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Decision Making with Hierarchical Credal Sets
Stockholm University, Faculty of Social Sciences, Department of Computer and Systems Sciences.
2014 (English)In: 15th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems: proceedings, part III, Heidelberg: Springer, 2014, 456-465 p.Conference paper, Published paper (Refereed)
Abstract [en]

We elaborate on hierarchical credal sets, which are sets of probability mass functions paired with second-order distributions. A new criterion to make decisions based on these models is proposed. This is achieved by sampling from the set of mass functions and considering the Kullback-Leibler divergence from the weighted center of mass of the set. We evaluate this criterion in a simple classification scenario: the results show performance improvements when compared to a credal classifier where the second-order distribution is not taken into account.

Place, publisher, year, edition, pages
Heidelberg: Springer, 2014. 456-465 p.
Series
Communications in Computer and Information Science, ISSN 1865-0937 ; Vol 444
Keyword [en]
Credal sets, second-order models, hierarchical credal sets, shifted Dirichlet distribution credal classification decision making
National Category
Information Systems
Research subject
Computer and Systems Sciences
Identifiers
URN: urn:nbn:se:su:diva-110964DOI: 10.1007/978-3-319-08852-5_47ISBN: 978-3-319-08851-8 (print)OAI: oai:DiVA.org:su-110964DiVA: diva2:773738
Conference
15th International Conference, IPMU 2014, Montpellier, France, July 15-19, 2014,
Available from: 2014-12-19 Created: 2014-12-19 Last updated: 2015-03-17Bibliographically approved

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