Defining Similarity Measures: Top-Down vs. Bottom-Up

  • Authors:
  • Armin Stahl

  • Affiliations:
  • -

  • Venue:
  • ECCBR '02 Proceedings of the 6th European Conference on Advances in Case-Based Reasoning
  • Year:
  • 2002

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Abstract

Defining similarity measures is a crucial task when developing CBR applications. Particularly, when employing utility-based similarity measures rather than pure distance-based measures one is confronted with a difficult knowledge engineering task. In this paper we point out some problems of the state-of-the-art procedure to defining similarity measures. To overcome these problems we propose an alternative strategy to acquire the necessary domain knowledge based on a Machine Learning approach. To show the feasibility of this strategy several application scenarios are discussed and some results of an experimental evaluation for one of these scenarios are presented.