Empirical Analysis of Reliability Estimates for Individual Regression Predictions

  • Authors:
  • Zoran Bosnić;Igor Kononenko

  • Affiliations:
  • Faculty of Computer and Information Science, University of Ljubljana, Ljubljana, Slovenia;Faculty of Computer and Information Science, University of Ljubljana, Ljubljana, Slovenia

  • Venue:
  • DaWaK '08 Proceedings of the 10th international conference on Data Warehousing and Knowledge Discovery
  • Year:
  • 2008

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Abstract

In machine learning, the reliability estimates for individual predictions provide more information about individual prediction error than the average accuracy of predictive model (e.g. relative mean squared error). Such reliability estimates may represent a decisive information in the risk-sensitive applications of machine learning (e.g. medicine, engineering, business), where they enable the users to distinguish between better and worse predictions. In this paper, we compare the sensitivity-based reliability estimates, developed in our previous work, with four other approaches, proposed or inspired by the ideas from the related work. The results, obtained using 5 regression models, indicate the potentials for the usage of the sensitivity-based and the local modeling approach, especially with the regression trees.