Hybrid Pruning Algorithm

Xiangran DU*, Xizhao WANG, Yuanyuan WAN

*Corresponding author for this work

Research output: Book Chapters | Papers in Conference ProceedingsConference paper (refereed)Referred Conference Paperpeer-review

Abstract

In this paper we develop a new post-pruning algorithm. This new pruning algorithm uses two or more postpruning algorithms to prune a decision tree that has been built on training set by different orders, and the "best" tree is selected based either on separate test set accuracy or cross-validations from trees coming from result of the above step. The algorithm is theoretically based on occam's razor that is a simpler model is chosen if two models have the same performance on the training set. An experiment is implemented on three databases in UCI machine learning repository and the new algorithm is employed to compares with two well-known post-pruning algorithms. The results show that the hybrid pruning algorithm effectively reduces the complexity of decision trees without sacrificing accuracy.

Original languageEnglish
Title of host publicationProceedings : 2009 International Forum on Computer Science-Technology and Applications
PublisherIEEE
Pages30-33
Number of pages4
Volume3
ISBN (Electronic)9781424454235
ISBN (Print)9780769539300, 9781424454228
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 International Forum on Computer Science-Technology and Applications, IFCSTA 2009 - Chongqing, China
Duration: 25 Dec 200927 Dec 2009

Publication series

NameInternational Forum on Computer Science-Technology and Applications (IFCSTA)
PublisherIEEE

Conference

Conference2009 International Forum on Computer Science-Technology and Applications, IFCSTA 2009
Country/TerritoryChina
CityChongqing
Period25/12/0927/12/09

Bibliographical note

This research is supported by the Natural Science Foundation of Hebei Province (F2008000635), by the key project foundation of applied fundamental research of Hebei Province (08963522D), by the plan of 100 excellent innovative scientists of the first group in Education Department of Hebei Province, and by the Scientific
Research Foundation of Hebei Province (06213548).

Keywords

  • Decision tree simplification
  • Decision trees
  • Hybrid pruning algorithm
  • Occam's razor
  • Overfitting

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