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  • 标题:On the decomposition of Generalized Additive Independence models
  • 作者:Michel Grabisch ; Christophe Labreuche
  • 期刊名称:Documents de Travail du Centre d'Economie de la Sorbonne
  • 印刷版ISSN:1955-611X
  • 出版年度:2015
  • 出版社:Centre d'Economie de la Sorbonne
  • 摘要:The GAI (Generalized Additive Independence) model proposed by Fishburn is a generalization of the additive utility model, which need not satisfy mutual preferential independence. Its great generality makes however its application and study difficult. We consider a significant subclass of GAI models, namely the discrete 2-additive GAI models, and provide for this class a decomposition into nonnegative monotone terms. This decomposition allows a reduction from exponential to quadratic complexity in any optimization problem involving discrete 2-additive models, making them usable in practice.
  • 关键词:Multiattribute utility; multichoice games
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