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- W3046887954 abstract "Novel lookup-based classification approaches allow machine-learning (ML) to be performed at extremely high classification rates for suitable low-dimensional classification problems. A central aspect of such approaches is the crucial importance placed on the optimal selection of features and discretized feature representations. In this work we propose and study a hybrid-genetic algorithm (hGAm) approach to solve this optimization problem. For the considered problem the fitness evaluation function is expensive, as it entails training a ML classifier with the proposed set of features and representations, and then evaluating the resulting classifier. We have here devised a surrogate problem by casting the feature selection and representation problem as a combinatorial optimization problem in the form of a multiple-choice quadratic knapsack problem (MCQKP). The orders of magnitude faster evaluation of the surrogate problem allows a comprehensive hGAm performance evaluation to be performed. The results show that a suitable trade-off exists at around 5000 fitness evaluations, and the results also provide a characterization of the parameter behaviors as input to future extensions." @default.
- W3046887954 created "2020-08-07" @default.
- W3046887954 creator A5090408893 @default.
- W3046887954 date "2020-07-08" @default.
- W3046887954 modified "2023-10-16" @default.
- W3046887954 title "A surrogate-assisted GA enabling high-throughput ML by optimal feature and discretization selection" @default.
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- W3046887954 doi "https://doi.org/10.1145/3377929.3398092" @default.
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