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: Goubko M. V.
: Lower-bound Estimate for Cost-sensitive Decision Trees : : 2011 : : Goubko M.V. Lower-bound Estimate for Cost-sensitive Decision Trees // Preprints of the 18th IFAC World Congress, Milano (Italy), August 28 - September 2, 2011. P. 9005-9010. : While an extensive body of literature investigates problems of decision trees growing, just a few study lower-bound estimates for the expected classification cost of decision trees, especially for varying costs of tests. In this paper a new lower-bound estimate is proposed. Computation of the estimate is reduced to solving a series of set-covering problems. Computational complexity and other properties of the lower-bound estimate are investigated. The top-down algorithm of tree construction based on the proposed estimate is tested against several popular greedy cost-sensitive heuristics on a range of standard data sets from UCI Machine Learning Repository. : : : : (pdf) : (pdf) : (ppsx) : 5013, : 8061, : 65. |