Applied Machine Learning in R

所在平台: Udemy

课程主页: https://www.udemy.com/course/applied-machine-learning-in-r/

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课程简介

课程名称:R中的应用机器学习 课程概述:该课程为您提供有关机器学习的实用培训,使用R程序进行学习。课程结束时,您将掌握最常见的机器学习技术,以便做出准确的预测并从数据中获取有价值的见解。所有机器学习流程均通过真实数据集进行详细讲解,帮助您快速提升并能够立即应用所学知识,无需经历复杂的试错过程。在短时间内,您可以在机器学习领域建立扎实的专业知识。这项技能在数据分析师、数据科学家、研究员以及软件工程师等职位中极具价值,因此现在是您注册该课程并开始提升机器学习能力的最佳时机。 课程内容包括: - 讨论执行机器学习前的重要概念,如监督学习和非监督学习技术、预测与推断的区别、回归模型和分类模型,以及偏差-方差权衡的重要性。 - 学习交叉验证的基本知识,测试和验证模型在独立数据集上的表现,并介绍三种交叉验证方法的优缺点。 - 深入研究监督学习技术,特别是回归技术(包括逐步回归、惩罚回归和部分最小平方回归),并在R中使用实际数据集进行演示。 - 学习分类技术,包括逻辑回归、判别分析、朴素贝叶斯、K近邻、支持向量机、决策树和神经网络,配合简单易懂的理论介绍和R中的模型训练与测试。 - 探讨非监督学习技术,如主成分分析和聚类分析,提供多个实践练习以帮助巩固所学知识。 该课程是您在短短几周内成为机器学习专家的良机!通过视频讲座,您将轻松掌握主要的机器学习技术,所有步骤均实时展示,方便您随时复制所需过程。立即点击“注册”按钮,获取您机器学习课程的即时访问,将为您提供无价的新技能,或许还能给您的职业生涯带来巨大的推动力。期待在课程中见到您!

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课程详情

This course offers you practical training in machine learning, using the R program. At the end of the course you will know how to use the most widespread machine learning techniques to make accurate predictions and get valuable insights from your data. All the machine learning procedures are explained live, in detail, on real life data sets. So you will advance fast and be able to apply your knowledge immediately - no need for painful trial-and-error to figure out how to implement this or that technique in R. Within a short time you can have a solid expertise in machine learning. Machine learning skills are very valuable if you intent to secure a job like data analyst, data scientist, researcher or even software engineer. So it may be the right time for you to enroll in this course and start building your machine learning competences today! Let's see what you are going to learn here. First of all, we are going to discuss some essential concepts that you must absolutely know before performing machine learning. So we'll talk about supervised and unsupervised machine learning techniques, about the distinctions between prediction and inference, about the regression and classification models and, above all, about the bias-variance trade-off, a crucial issue in machine learning. Next we'll learn about cross-validation. This is an all-important topic, because in machine learning we must be able to test and validate our model on independent data sets (also called first seen data). So we are going to present the advantages and disadvantages of three cross-validations approaches. After the first two introductory sections, we will get to study the supervised machine learning techniques. We'll start with the regression techniques, where the response variable is quantitative. And no, we are not going to stick to the classical OLS regression that you probably know already. We will study sophisticated regression techniques like stepwise regression (forward and backward), penalized regression (ridge and lasso) and partial least squares regression. And of course, we'll demonstrate all of them in R, using actual data sets. Afterwards we'll go to the classification techniques, very useful when we have to predict a categorical variable. Here we'll study the logistic regression (classical and lasso), discriminant analysis (linear and quadratic), naïve Bayes technique, K nearest neighbor, support vector machine, decision trees and neural networks. For each technique above, the presentation is structured as follows: * a short, easy to understand theoretical introduction (without complex mathematics) * how to train the predictive model in R * how to test the model to make sure that it does a good prediction job on independent data sets. In the last sections we'll study two unsupervised machine learning techniques: principal component analysis and cluster analysis. They are powerful data mining techniques that allow you to detect patterns in your data or variables. For each technique, a number of practical exercises are proposed. By doing these exercises you'll actually apply in practice what you have learned. This course is your opportunity to become a machine learning expert in a few weeks only! With my video lectures, you will find it very easy to master the major machine learning techniques. Everything is shown live, step by step, so you can replicate any procedure at any time you need it. So click the "Enroll" button to get instant access to your machine learning course. It will surely provide you with new priceless skills. And, who knows, it could give you a tremendous career boost in the near future. See you inside!

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