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Mining Incomplete Data with Many Lost and Attribute-Concept Values

  • Patrick G. Clark
  • Jerzy W. Grzymala-BusseEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9436)

Abstract

This paper presents experimental results on twelve data sets with many missing attribute values, interpreted as lost values and attribute-concept values. Data mining was accomplished using three kinds of probabilistic approximations: singleton, subset and concept. We compared the best results, using all three kinds of probabilistic approximations, for six data sets with lost values and six data sets with attribute-concept values, where missing attribute values were located in the same places. For five pairs of data sets the error rate, evaluated by ten-fold cross validation, was significantly smaller for lost values than for attribute-concept values (5 % significance level). For the remaining pair of data sets both interpretations of missing attribute values do not differ significantly.

Keywords

Incomplete data Lost values Attribute-concept values Probabilistic approximations MLEM2 rule induction algorithm 

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Authors and Affiliations

  1. 1.Department of Electrical Engineering and Computer ScienceUniversity of KansasLawrenceUSA
  2. 2.Department of Expert Systems and Artificial IntelligenceUniversity of Information Technology and ManagementRzeszowPoland

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