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• W2896837079 abstract "Huge amounts of data are pervasive in many domains and applications. Unfortunately, high-dimensional data are tightly associated with the curse of dimensionality, a phenomenon that adversely affects many data mining algorithms. Therefore, it is desirable to reduce the dimensionality of the data through preprocessing techniques such as feature selection (FS). Although FS is frequently perceived as a preprocessing technique, in some domains, such as bioinformatics, it is of paramount importance for identifying relevant attributes, and therefore, provides answers to the investigated research question. In this paper, we propose a novel supervised FS method based on k-nearest neighbors algorithm. In particular, we use distance and attribute weighted k-nearest neighbors with gradient descent as an iterative optimization algorithm for finding the function minima. The new method is compared with the state-of-the-art FS algorithms using eight artificial and twelve high-dimensional real-world datasets. The experimental results indicate that the proposed algorithm is able to identify the relevant features and shows the highest prediction performance for all four considered prediction algorithms." @default.
• W2896837079 created "2018-10-26" @default.
• W2896837079 creator A5075926177 @default.
• W2896837079 creator A5090679228 @default.
• W2896837079 date "2019-01-01" @default.
• W2896837079 modified "2023-09-27" @default.
• W2896837079 title "Weighted nearest neighbors feature selection" @default.
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• W2896837079 doi "https://doi.org/10.1016/j.knosys.2018.10.004" @default.
• W2896837079 hasPublicationYear "2019" @default.
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