Machine Learning with Scikit-Learn and Tensorflow 6.5 计算复杂度
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书籍信息
Hands-On Machine Learning with Scikit-Learn and Tensorflow
出版社: O’Reilly Media, Inc, USA
平装: 566页
语种: 英语
ISBN: 1491962291
条形码: 9781491962299
商品尺寸: 18 x 2.9 x 23.3 cm
ASIN: 1491962291
系列博文为书籍中文翻译
代码以及数据下载:https://github.com/ageron/handson-ml
利用决策树进行预测时需要从根结点前进到叶结点。考虑到决策树通常基本是平衡的,利用决策树进行预测需要遍历的结点数量是
然而,决策树需要在每个结点比较所有样本的所有特征,导致决策树的训练复杂度是
译者注:
这里的n感觉应该是特征数量。
这里的m感觉应该是样本数量。
CART生长时,把所有特征内的值都作为分裂候选,并为其计算评价指标(信息增益/基尼不纯度),所以每层是
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- Machine Learning with Scikit-Learn and Tensorflow 6.5 计算复杂度
- Machine Learning with Scikit-Learn and Tensorflow 6.4 CART算法
- Machine Learning with Scikit-Learn and Tensorflow 6.8 决策树回归
- Machine Learning with Scikit-Learn and Tensorflow 6.9 决策树局限性
- Machine Learning with Scikit-Learn and Tensorflow 6.10 练习
- Machine Learning with Scikit-Learn and Tensorflow 7.1 Voting Classifiers
- Machine Learning with Scikit-Learn and Tensorflow 7.5 随机森林
- Machine Learning with Scikit-Learn and Tensorflow 7.6 Extra-Trees
- Machine Learning with Scikit-Learn and Tensorflow 7.8 AdaBoost
- Machine Learning with Scikit-Learn and Tensorflow 7.9 Gradient Boosting
- Machine Learning with Scikit-Learn and Tensorflow 7.10 Stacking
- Machine Learning with Scikit-Learn and Tensorflow 7.11 练习
- Machine Learning with Scikit-Learn and Tensorflow 6.6 基尼不纯度/熵
- Machine Learning with Scikit-Learn and Tensorflow 6.7 正则化超参数
- Machine Learning with Scikit-Learn and Tensorflow 6 决策树(章节目录)
- Machine Learning with Scikit-Learn and Tensorflow 7.2 Bagging和Pasting
- Machine Learning with Scikit-Learn and Tensorflow 7.3 Out-of-Bag评价方式
- Machine Learning with Scikit-Learn and Tensorflow 7.4 Random Patches和Random Subspaces
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