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An Improved Second Order Training Algorithm for Improving the Accuracy of Fuzzy Decision Trees

Author

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  • Swathi Jamjala Narayanan

    (School of Computing Science and Engineering, VIT University, Vellore, India)

  • Rajen B. Bhatt

    (Robert Bosch Research and Technology Center, Pittsburgh, PA, USA)

  • Ilango Paramasivam

    (School of Computing Science and Engineering, VIT University, Vellore, India)

Abstract

Fuzzy decision tree (FDT) is a powerful top-down, hierarchical search methodology to extract human interpretable classification rules. The performance of FDT depends on initial fuzzy partitions and other parameters like alpha-cut and leaf selection threshold. These parameters are decided either heuristically or by trial-and-error. For given set of parameters, FDT is constructed using any standard induction algorithms like Fuzzy ID3. Due to the greedy nature of induction process, there is a chance of FDT resulting in poor classification accuracy. To further improve the accuracy of FDT, in this paper, the authors propose the strategy called Improved Second Order- Neuro- Fuzzy Decision Tree (ISO-N-FDT). ISO-N-FDT tunes parameters of FDT from leaf node to roof node starting from left side of tree to its right and attains better improvement in accuracy with less number of iterations exhibiting fast convergence and powerful search ability.

Suggested Citation

  • Swathi Jamjala Narayanan & Rajen B. Bhatt & Ilango Paramasivam, 2016. "An Improved Second Order Training Algorithm for Improving the Accuracy of Fuzzy Decision Trees," International Journal of Fuzzy System Applications (IJFSA), IGI Global, vol. 5(4), pages 96-120, October.
    • Handle: RePEc:igg:jfsa00:v:5:y:2016:i:4:p:96-120
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