It might seem that minimization of is equivalent to minimization of . If these two minimization problems were equivalent, then maximization of would be the best method in statistical estimation. However, minimization and expectation cannot be commutative.
Hence maximization of does not mean minimization of . This is the basic reason why statistical learning does not result in a simple optimization problem.
- 作者: Sumio Watanabe
- 出版社/メーカー: Cambridge University Press
- 発売日: 2009/08/13
- メディア: ハードカバー
- クリック: 8回
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