点击上方“Python与算法社区”,选择“星标”公众号 由O'Reilly Media,Inc.出版的《Feature Engineering for Machine Learning》(国内译作《精通特征工程》)一书,可以说是特征工程的宝典,本文在知名开源apachecn组织翻译的英文版基础上,将原文修改成jupyter notebook格式,并增加
X_te_tfidf = tfidf_trfm.transform(X_te_bow) 逻辑回归,当输入的特征比数据要多时,训练出的模型是不确定的,因此需要增加正则化,正则参数属于超参数,一般使用网格搜索确定。 k-fold cross validation用于评价模型关于噪声的影响。 Tf-Idf与ℓ2归一化均属于以上数据矩阵关于列操作。该矩阵会出现特征线性相关。...
要了解在实践中如何使用特征工具,请阅读开源库的开发公司 Feature Labs 的工作(https://www.featurelabs.com/)。 原文链接:https://towardsdatascience.com/automated-feature-engineering-in-python-99baf11cc219
在本文中作者将为我们介绍如何使用 Feature ToolsPython库实现特征工程自动化,项目已开源。 项目地址:https://docs.featuretools.com/ 代码地址:https://github.com/WillKoehrsen/automated-feature-engineering/blob/master/walk_through/Automated_Feature_Engineering.ipynb 机器学习越来越多地从人工设计模型转向使用 H20...
Feature Engineering: 超好用的特征工程Python库: feature_engine 分类:BigDataAIML 标签:Feature engineering,AI,Machine Learning abaelhe 粉丝-5关注 -1 +加关注 0 升级成为会员
由O'Reilly Media,Inc.出版的《Feature Engineering for Machine Learning》(国内译作《精通特征工程》)一书,可以说是特征工程的宝典。 特征工程 github apache ResNet原理与代码实例讲解 深度学习作为人工智能领域的一个重要分支,在近年来取得了突破性的进展。从早期的感知机,到多层感知机(MLP),再到卷积神经网络(...
An open source AutoML toolkit for automate machine learning lifecycle, including feature engineering, neural architecture search, model compression and hyper-parameter tuning. python data-science machine-learning deep-learning neural-network tensorflow machine-learning-algorithms pytorch distributed hyperparameter...
Python recipes that will help you automate feature engineering to simplify complex processes. You’ll also get to grips with different feature engineering strategies,such as the box-cox transform,power transform,and log transform across machine learning,reinforcement learning,and natural language ...
machine learning systems Use feature engineering to smooth rough data into useful forms Chain multiple components into one system and tune its performance Apply machine learning techniques to images and text Connect the core concepts to neural networks and graphical models Leverage the Python scikit-...
原文地址:https://machinelearningmastery.com/feature-selection-machine-learning-python/ 译者微博:@从流域到海域 译者博客:blog.csdn.net/solo95 Python机器学习中的特征选择 您用来训练机器学习模型的数据特征(data features)对最终实现时能达到的性能表现有巨大的影响。