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Normal Equation

Normal Equation

作者: jianshuqwerty | 来源:发表于2017-12-25 14:05 被阅读0次
normal equation GD&Normal Equation对比

With the normal equation, computing the inversion has complexity O(n3). So if we have a very large number of features, the normal equation will be slow. In practice, when n exceeds 10,000 it might be a good time to go from a normal solution to gradient Descent.

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