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Non-additive Utility Functions: Choquet Integral Versus Weighted DNF Formulas

  • Eyke Hüllermeier
  • Ingo Schmitt
Conference paper
Part of the Studies in Classification, Data Analysis, and Knowledge Organization book series (STUDIES CLASS)

Abstract

In the context of conjoint analysis, a consumer’s purchase preferences can be modeled by means of a utility function that maps an attribute vector describing a product to a real number reflecting the preference for that product. Since simple additive utility functions are not able to capture interactions between different attributes, several types of non-additive functions have been proposed in recent years. In this paper, we compare two such model classes, namely the (discrete) Choquet integral and weighted DNF formulas as used in a logic-based query language called CQQL. Although both approaches have been developed independently of each other in different fields (decision analysis and information retrieval), they are actually quite similar and share several commonalities. By developing a conceptual link between the two approaches, we provide new insights that help to decide which of the two alternatives is to be preferred under what conditions.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Mathematics and Computer ScienceUniversity of MarburgMarburgGermany
  2. 2.Institute of Computer ScienceTechnical University of CottbusCottbusGermany

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