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Decisions Tree Learning Method Based on Three-Way Decisions

  • Yangyang Liu
  • Jiucheng Xu
  • Lin Sun
  • Lina Du
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9437)

Abstract

Aiming at the problems that traditional data mining methods ignore inconsistent data, and general decision tree learning algorithms lack of theoretical support for the classification of inconsistent nodes. The three-way decision is introduced to decision tree learning algorithms,and the decision tree learning method based on three-way decisions is proposed. Firstly, the proportion of positive objects in node is used to compute the conditional probability of the three-way decision of node. Secondly, the nodes in decision tree arepartitioned to generate the three-way decision tree. The merger and pruning rules of the three-way decision tree are derived to convert the three-way decision tree into two-way decision tree by considering the information around nodes. Finally, an exampleisimplemented. The results show that the proposed method reserves inconsistent information, partitions inconsistent nodes by minimizing the overall risk, not only generates decision tree with cost-sensitivity, but also makes the partition of inconsistent nodes more explicable. Besides, the proposed method reduces the overfitting to some extent and the computation problem of conditional probability of three-way decisions is resolved.

Keywords

Three-way decisions Decision tree Conditional probability Boundary nodes Minimizing the overall risk Merger and pruning 

Notes

Acknowledgements

The authors wish to thank the anonymous reviewers and Editor-in-Chief for their valuable comments and hard work. This work was supported by the National Natural Science Foundation of China (Nos. 61370169, 61402153,60873104), the Key Project of Science and Technology Department of Henan Province (Nos. 142102210056, 112102210194), the Science and Technology Research Key Project of Educational Department of Henan Province (Nos.12A520027, 13A520529), the Key Project of Science and Technology of Xinxiang Government (No. ZG13004), the Education Fund for Youth Key Teachers of Henan Normal University, and the 2014 Henan Normal University Youth Science Fund(No. 2014QK28).

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© Springer International Publishing Switzerland 2015

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Authors and Affiliations

  • Yangyang Liu
    • 1
  • Jiucheng Xu
    • 1
    • 2
    • 3
  • Lin Sun
    • 1
    • 2
    • 3
  • Lina Du
    • 1
  1. 1.College of Computer and Information EngineeringHenan Normal UniversityXinxiangChina
  2. 2.Engineering Technology Research Center for Computing Intelligence and Data MiningXinxiangChina
  3. 3.Engineering Laboratory of Intellectual Business and Internet of Things TechnologiesXinxiangChina

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