Advanced Data Science Techniques in SPSS

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课程主页: https://www.udemy.com/course/advanced-data-science-techniques-in-spss/

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**Coursera 课程摘要:SPSS 高级数据科学技术** 本课程旨在帮助您掌握 SPSS 中复杂的数据分析技术,成为一名顶尖的数据分析师。即使您没有专业的数学或统计学背景,也能轻松理解并实际应用这些方法。 **课程亮点:** * **步进回归分析:** 学习从大量预测变量中选择最优子集,构建精简有效的回归模型。 * **非线性回归分析:** 掌握在 SPSS 中拟合各种非线性回归模型。 * **K 近邻 (KNN):** 学习这一流行的分类技术,预测分类变量的值。 * **决策树:** 深入了解二元 (CART) 和非二元 (CHAID) 决策树,包括回归树和分类树。 * **神经网络:** 学习两种先进的人工神经网络:多层感知器 (MLP) 和径向基函数 (RBF) 网络。 * **两步聚类分析:** 掌握识别同质群体的高效方法,广泛应用于市场研究、医学、生物学等领域。 * **生存分析:** 学习 Kaplan-Meier 和 Cox 回归方法,估计事件发生时间、人群受事件影响的比例以及影响事件发生概率的因素。 **每种技术都包含:** * 简明的理论介绍,帮助您理解基本概念。 * 基于真实数据集的分析案例,并附带详细的输出解释。 * 对于 KNN、决策树和神经网络,还将学习模型验证(使用独立数据集、交叉验证)和保存模型以进行未来预测的方法。 加入本课程,立即开始构建复杂且备受欢迎的数据分析技能!

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Become a Top Performing Data Analyst - Take This Advanced Data Science Course in SPSS! Within a few days only you can master some of the most complex data analysis techniques available in the SPSS program. Even if you are not a professional mathematician or statistician, you will understood these techniques perfectly and will be able to apply them in practical, real life situations. These methods are used every day by data scientists and data miners to make accurate predictions using their raw data. If you want to be a high skilled analyst, you must know them! Without further ado, let's see what you are going to learn… Stepwise regression analysis, a technique that helps you select the best subset of predictors for a regression analysis, when you have a big number of predictors. This way you can create regression models that are both parsimonious and effective. Nonlinear regression analysis. After finishing this course, you will be able to fit any nonlinear regression model using SPSS. K nearest neighbor, a very popular predictive technique used mostly for classification purposes. So you will learn how to predict the values of a categorical variable with this method. Decision trees. We will approach both binary (CART) and non-binary (CHAID) trees. For each of these two types we will consider two cases: the case of response dependent variables (regression trees) and the case of categorical response variables (classification trees). Neural networks. Artificial neural networks are hot now, since they are a suitable predictive tool in many situations. In SPSS we can train two types of neural network: the multilayer perceptron (MLP) and the radial basis function (RBF) network. We are going to study both of them in detail. Two-step cluster analysis, an effective grouping procedure that allows us to identify homogeneous groups in our population. It is useful in very many fields like marketing research, medicine (gene research, for example), biology, computer science, social science etc. Survival analysis. If you have to estimate one of the following: the probable time until a certain event happens, what percentage of your population will suffer the event or which particular circumstances influence the probability that the event happens, than you need to apply on of the survival analysis method studied here: Kaplan-Meier or Cox regression. For each analysis technique, a short theoretical introduction is provided, in order to familiarize the reader with the fundamental notions and concepts related to that technique. Afterwards, the analysis is executed on a real-life data set and the output is thoroughly explained. Moreover, for some techniques (KNN, decision trees, neural networks) you will also learn: How to validate your model on an independent data set, using the validation set approach or the cross-validation How to save the model and use it for make predictions on new data that may be available in the future. Join right away and start building sophisticated, in-demand data analysis skills in SPSS!

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