The success of many learning algorithms hinges on the reliable selection or construction of a set of highly predictive features. Kernel-based feature weighting bridges the gap between feature extraction and subset selection. This paper presents a rigorous derivation of the Kernel-Relief algorithm and assesses its effectiveness in comparison with other state-of-art techniques. For practical considerations, an online sparsification procedure is incorporated into the basis construction process by assuming that the kernel bases form a causal series. The proposed sparse Kernel-Relief algorithm not only produces nonlinear features with extremely sparse kernel expressions but also reduces the computational complexity significantly. © 2008 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Yang, S. H., Yang, Y. J., & Hu, B. G. (2008). Sparse kernel-based feature weighting. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5012 LNAI, pp. 813–820). https://doi.org/10.1007/978-3-540-68125-0_79
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