curse of dimensionality
(mathematics, computing) A problem in the analysis of multidimensional systems caused by the sparse nature of the available data.
(figuratively) A cue, warning, or alert; a sign or signal that something is wrong. / (idiomatic, US) red rag
A person testified against (by a testifier)
A surname.
モデルに特徴量を増やすと、高次元空間でのデータの希薄さという問題により、確率を正確に推定するのが難しくなった。
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