绘制了一张导图,有不对的地方欢迎指正: 下载地址 机器学习中,特征是很关键的.其中包括,特征的提取和特征的选择.他们是降维的两种方法,但又有所不同: 特征抽取(Feature Extraction):Creatting a subset of new features by combinations of the exsiting features.也就是说,特征抽取后的新特征是原来特征的一个映射. 特征选择(Feature Selection):choosing a subset of all…
必做: [*] warmUpExercise.m - Simple example function in Octave/MATLAB[*] plotData.m - Function to display the dataset[*] computeCost.m - Function to compute the cost of linear regression[*] gradientDescent.m - Function to run gradient descent 1.warmUpE…
What skills are needed for machine learning jobs?机器学习工作必须技能 原文: http://www.quora.com/Machine-Learning/What-skills-are-needed-for-machine-learning-jobs/answer/Joseph-Misiti Machine Learning: What skills are needed for machine learning jobs? I am a lea…
https://www.quora.com/How-do-I-learn-machine-learning-1?redirected_qid=6578644 How Can I Learn X? Learning Machine Learning Learning About Computer Science Educational Resources Advice Artificial Intelligence How-to Question Learning New Things Lea…
Machine learning Machine learning is a scientific discipline that explores the construction and study of algorithms that can learn from data. Such algorithms operate by building a model based on inputs and using that to make predictions or decisions,…
1.Introduction 1.1 Example - Database mining Large datasets from growth of automation/web. E.g., Web click data, medical records, biology, engineering - Applications can't program by hand. E.g., Atonomous helicopter…
(1) Advice for applying machine learning Deciding what to try next 现在我们已学习了线性回归.逻辑回归.神经网络等机器学习算法,接下来我们要做的是高效地利用这些算法去解决实际问题,尽量不要把时间浪费在没有多大意义的尝试上,Advice for applying machine learning & Machinelearning system design 这两课介绍的就是在设计机器学习系统的时候,我们该怎么做? 假设我们实现了一…
Machine learning (1) 机器学习的两种定义 the field of study that gives computers the ability to learn without being explicitly programmed(Arthur Samuel) A computer program is said to learn from experience E with respect to some class of tasks T and performan…