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Erschienen in:
2005 | OriginalPaper | Buchkapitel
On Optimization of Decision Trees
verfasst von : Igor V. Chikalov, Mikhail Ju. Moshkov, Maria S. Zelentsova
Erschienen in: Transactions on Rough Sets IV
Verlag: Springer Berlin Heidelberg
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In the paper algorithms are considered which allow to consecutively optimize decision trees for decision tables with many-valued decisions relatively different complexity measures such as number of nodes, weighted depth, average weighted depth, etc. For decision tables over an arbitrary infinite restricted information system [5] these algorithms have (at least for the three mentioned measures) polynomial time complexity depending on the length of table description. For decision tables over one of such information systems experimental results of decision tree optimization are described.