机器学习 week3

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  机器学习 week3

  主题：浅层神经网络（Shallow neural networks） 3.1 神经网络概述（Neural Netw...

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  【机器学习】-Week3 1. Classification

  来源：coursera 斯坦福 吴恩达 机器学习 分类 要尝试分类，一种方法是使用线性回归并将大于0.5的所有预测...

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  【机器学习】-Week3 3. Decision Boundar

  Decision Boundary In order to get our discrete 0 or 1 cla...

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  【机器学习】-Week3 4. Cost Function

  Cost Function We cannot use the same cost function that w...

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  【机器学习】-Week3 2. Hypothesis Repre

  Hypothesis Representation We could approach the classific...

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  【机器学习】-Week3 6. Advanced Optimiz

  拟牛顿法 Quasi-Newton Methods 是求解非线性优化最有效的方法之一 Advanced Optim...

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  【机器学习】-Week3 5. Simplified regre

  Simplified Cost Function and Gradient Descent We can comp...

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  【机器学习】-Week3 7. Multiclass Class

  Multiclass Classification: One-vs-all Now we will approac...

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  【机器学习】-Week3 8. The Problem of O

  The Problem of Overfitting Consider the problem of predic...

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  【机器学习】-Week3 11. Regularized log

  Regularized Logistic Regression We can regularize logisti...