Random feature selection outperforms many state-of-the-art unsupervised feature selection methods in both performance and efficiency.
Unsupervised feature selection via dual space-based low redundancy scores and extended OLSDA
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Worse than Random: The Importance of a Baseline for Unsupervised Feature Selection
Random feature selection outperforms many state-of-the-art unsupervised feature selection methods in both performance and efficiency.