报告题目:Variable Selection in Big Data: From Frequentist to Bayesian
报告人:艾明要 北京大学数学科学学院、北京大学统计中心
时间:6月17日下午15:30-16:30
地点:科技楼二楼北会议室
Abstract:The variable selection has been becoming a more and more important tool in dealing with big data. The goal of variable selection in regression analysis is to identify the smallest subset of the covariates that explains the data well. In this talk, all kinds of techniques for variable selection are reviewed, including stepwise regression, criteria-based subset selection, penalized likelihood shrinkage, and Bayesian strategy, etc. Some comparisons among them are made by simulation and a real example is presented to illustrate the procedure of Bayesian strategy.
艾明要教授简介:现为北京大学数学科学学院统计学教研室主任、教授、博士生导师,兼任中国现场统计研究会副秘书长,中国现场统计研究会试验设计分会理事长、高维数据统计分会副理事长、空间统计分会秘书长,是国际统计期刊《Journal of Statistical Planning and Inference》、《Statistics and Probability Letters》、《STAT》(An electronic journal of ISI)的副编辑(Associate Editor),国内数学期刊《系统科学与数学》的编委。
现主要从事试验设计与分析、计算机试验、高维数据分析和应用统计的教学和研究工作,在Ann. Statist.、JASA、Biometrika、Statist. Sinica等国内外期刊发表学术论文五十余篇,主持或参与完成多项国家自然科学基金面上项目、重点项目和国家科技部973课题等。