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Graph decision models in a computational decision analytic framework
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier. (PI - Publika Informationssystem, STC)ORCID-id: 0000-0003-0310-0018
Ansvarig organisation
2006 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Ort, förlag, år, upplaga, sidor
Sundsvall: Mittuniversitetet , 2006. , s. 123
Serie
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 10
Nyckelord [en]
Decision Analysis, Imprecise Reasoning, Decision Trees, Influence Diagrams, Criteria Hierarchy Trees
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:miun:diva-5873Lokalt ID: 4033ISBN: 91-85317-18-7 (tryckt)OAI: oai:DiVA.org:miun-5873DiVA, id: diva2:30906
Presentation
(Engelska)
Tillgänglig från: 2008-09-30 Skapad: 2009-05-11 Senast uppdaterad: 2018-01-12Bibliografiskt granskad
Delarbeten
1. The DecideIT Decision Tool
Öppna denna publikation i ny flik eller fönster >>The DecideIT Decision Tool
2003 (Engelska)Ingår i: ISIPTA '03: Proceedings of the Third International Symposium on Imprecise Probabilities and Their Applications, Lugano, Switzerland, July 14-17, 2003, Carleton Scientific , 2003, s. 204-217Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Abstract [en]

The nature of much information available to decision makers is vague and imprecise, be it information for human managers in organisations or for process agents in a distributed computer environment. Several models for handling vague and imprecise information in decision situations have been suggested. In particular, various interval methods have prevailed, i.e. methods based on interval estimates of probabilities and, in some cases, interval utility estimates. Even if these approaches in general are well founded, little has been done to take into consideration the evaluation perspective and, in particular, computational aspects and implementation issues. The purpose of this paper is to demonstrate a tool for handling imprecise information in decision situations. The tool is an implementation of our earlier research focussing on finding fast algorithms for solving bilinear systems of equations together with a graphical user interface supporting the interpretation of evaluations of imprecise data.

Ort, förlag, år, upplaga, sidor
Carleton Scientific, 2003
Nyckelord
Decision Analysis, Interval Probabilities, Utility Theory, Decision Tools.
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
urn:nbn:se:miun:diva-1690 (URN)315 (Lokalt ID)1-894145-17-8 (ISBN)315 (Arkivnummer)315 (OAI)
Projekt
PI - Publika Informationssystem
Tillgänglig från: 2008-11-23 Skapad: 2008-11-23 Senast uppdaterad: 2018-01-12Bibliografiskt granskad
2. Representation and Evaluation of Influence Diagrams in a Common Framework for Interval Decision Analysis
Öppna denna publikation i ny flik eller fönster >>Representation and Evaluation of Influence Diagrams in a Common Framework for Interval Decision Analysis
2006 (Engelska)Ingår i: Proceedings of IMECS 2006, 2006, s. 738-743Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This paper present a method for inclusion of influence diagrams within a common framework for analysing decisions under risk supporting interval-valued user statements. The method of inclusion support both modeling and evaluation, and the evaluation is performed through a conversion of influence diagrams into decision tree frames holding symmetric decision trees. The qualitative and explicit modeling of probabilistic independence cause implicit comparative constraints between variables, constraints which must not be violated in order to obtain correct evaluation results.

Nyckelord
Decision evaluation, influence diagrams, imprecise information
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
urn:nbn:se:miun:diva-3257 (URN)000241357500138 ()2-s2.0-84888223103 (Scopus ID)3518 (Lokalt ID)988-986713-3 (ISBN)3518 (Arkivnummer)3518 (OAI)
Konferens
International Multiconference of Engineers and Computer Scientists, Jun 20-22, 2006, Kowloon, China
Tillgänglig från: 2008-09-30 Skapad: 2008-09-30 Senast uppdaterad: 2018-01-12Bibliografiskt granskad
3. Decision analysis with multiple objectives in a framework for evaluating imprecision
Öppna denna publikation i ny flik eller fönster >>Decision analysis with multiple objectives in a framework for evaluating imprecision
2005 (Engelska)Ingår i: International Journal of Uncertainty Fuzziness and Knowledge-Based Systems, ISSN 0218-4885, Vol. 13, nr 5, s. 495-509Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We present a decision tree evaluation method for analyzing multi-attribute decisions under risk, where information is numerically imprecise. The approach extends the use of additive and multiplicative utility functions for supporting evaluation of imprecise statements, relaxing requirements for precise estimates of decision parameters. Information is modeled in convex sets of utility and probability measures restricted by closed intervals. Evaluation is done relative to a set of rules, generalizing the concept of admissibility, computationally handled through optimization of aggregated utility functions. Pros and cons of two approaches, and tradeoffs in selecting a utility function, are discussed.

Nyckelord
Decision analysis, multi-attribute utility theory, decision tools; imprecise information
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
urn:nbn:se:miun:diva-3398 (URN)000232867500003 ()3468 (Lokalt ID)3468 (Arkivnummer)3468 (OAI)
Konferens
17th International FLAIRS Conference, May 17-19, 2004, miami Beach, FL
Anmärkning
17th International FLAIRS Conference, May 17-19, 2004, Miami Beach, FLTillgänglig från: 2008-11-23 Skapad: 2008-11-23 Senast uppdaterad: 2018-01-12Bibliografiskt granskad
4. Public Decision Support - Using a DSS to Increase Democratic Transparency
Öppna denna publikation i ny flik eller fönster >>Public Decision Support - Using a DSS to Increase Democratic Transparency
2005 (Engelska)Ingår i: International Journal of Public Information Systems, ISSN 1653-4360, Vol. 1, nr 1, s. 3-25Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We present a case study in which a decision support method (ADL) was employed by a local government in order to guide and aid decisions on three complicated and politically infected issues which had remained unresolved for many years. The research inquiry was whether a well-defined and openly accessible method would aid a common understanding of the decision problems, and whether people would be able to accept a clearly motivated decision even if politically they preferred a different option. The ADL method has been used in several public sector projects ranging from very large purchasing decisions to the selection of national policies, but this test case was novel in that it involved close inspection by the public. This case was also devised as a test of new methods for potential inclusion into normal practices. The post-case analysis shows mixed understanding of and belief in the method. The results raise issues concerning both the potential for decision support methods in a political context and the nature of political decision making.

Ort, förlag, år, upplaga, sidor
Sundsvall: Mittuniversitetet, 2005
Nyckelord
Decision support, multi-criteria decision analysis, democratic decision process, e-Democracy
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
urn:nbn:se:miun:diva-4724 (URN)3516 (Lokalt ID)3516 (Arkivnummer)3516 (OAI)
Projekt
PI - Publika Informationssystem
Tillgänglig från: 2008-09-30 Skapad: 2008-09-30 Senast uppdaterad: 2018-01-12Bibliografiskt granskad

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Larsson, Aron

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