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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Subsampling for Rare Events Data and maximum sampled conditional likelihood
罕见事件数据 子采样 最大采样 条件似然
2023/5/15
In this talk, we show that the available information about unknown parameters in rare events data is only tied to the relatively small number of cases, which justifies the usage of negative sampling. ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：逻辑动态系统研究进展
逻辑动态系统 研究进展 矩阵半张量积 代数状态空间
2023/4/25
逻辑是人类认知和交流的基本手段，因此逻辑动态系统的分析与控制是认识和改造世界的根本工具之一。此前针对逻辑系统的分析与综合缺乏合适的数学工具，本报告首先介绍基于矩阵半张量积的代数状态空间方法，并对逻辑动态系统分析与控制理论作简要回顾，进一步汇报我们在逻辑动态系统方面近期的研究进展。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：集装箱港口货运需求预测研究：以环渤海三大港口为例
集装箱港口 货运需求预测 环渤海 三大港口
2023/4/28
本文基于TEI@I理论框架，提出了适用于港口物流货运复杂系统的TEI@I的综合集成预测模型，并基于环渤海三大港口青岛港、天津港和大连港集装箱吞吐量数据,预测和分析了TEI@I的港口物流货运量的集成预测理论框架的各部分。预测结果表明，基于TEI@I集成预测模型的效果远远优于单独模型的预测结果，方向变化统计量(Dstat)的评价结果从65%-75%提高到了90%以上，对主要决策者方向性的判断更有实际意...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Prediction When Factors are Weak
因素较弱 预测 宏观经济预测
2023/5/5
In macroeconomic forecasting, principal component analysis (PCA) has been the most prevalent approach to the recovery of factors, which summarize information in a large set of macro predictors. Nevert...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Multiclass Sparse Discriminant Analysis Incorporating Graphical Structure among Predictors
预测变量 图形结构 多类稀疏 判别分析
2023/5/9
In the era of big data, many sparse linear discriminant analysis methods have been proposed for the classification and variable selection of the high-dimensional data. In order to solve the multiclass...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：粮食主产区粮食产量预测模型
粮食主产区 粮食产量 预测模型
2023/5/16
报告主要介绍东北四省区等粮食主产区的粮食产量预测的模型情况，以及模型的应用、改进空间等等。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：How to capture tourists' search behavior in tourism forecasts？A two-stage feature selection approach
旅游预测 游客 搜索行为 两阶段 特征选择方法
2023/5/16
Search engine data have been widely used and shown to be useful in tourism demand forecasting. However, considering of the vast amounts of search keywords, how to better capture the tourists' attentio...
Professor Michael Nussbaum,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Professor quantum statistics
2015/8/14
Michael Nussbaum research program focuses on asymptotic methods in quantum statistics, in particular on hypothesis testing and discrimination between states of quantum systems. Further topics are the ...
Professor David Ruppert,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Professor astrostatistics measurement error models
2015/8/14
David Ruppert is Andrew Schulz Jr. Professor of Engineering, School of Operations Research and Information Engineering, and Professor of Statistical Science, Cornell University. He received a BA in Ma...
Associate Professor Paul Velleman,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Associate Professor Social Statistics
2015/8/14
Paul Velleman is an Associate Professor of Social Statistics in the Industrial and Labor Relations School. His research is focused on Distance and Online Learning, Healthcare, abd Statistical Theory, ...
Professor Martin Wells,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Professor Social Statistics
2015/8/14
Martin T. Wells, Ph.D., joined the Cornell faculty in 1987 and is the Charles A. Alexander Professor of Statistical Sciences. He is also a Professor of Social Statistics, Professor of Clinical Epidemi...
Professor John Abowd,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Professor Economics Information Science
2015/8/14
John Abowd is the Edmund Ezra Day Professor in the department of Economics, where he also serves as the Director of Graduate Studies. Professor Abowd is a member in the graduate fields of Economics, I...
Professor James Booth,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Professor Biological Statistics Computational Biology
2015/8/14
James Booth currently Chair of the Department of Biological Statistics and Computational Biology in the College of Agriculture and Life Sciences at Cornell University. I came to Cornell in 2003 as a v...
Professor Florentina Bunea,Department of Statistical Science at Cornell University（图）
Department of Statistical Science at Cornell University Professor high dimensional matrix models
2015/8/14
Florentina Bunea have an MS in Mathematics from the University of Bucharest, Romania, and a Ph. D. in Statistics from the University of Washington, Seattle (2000).My research interests include machine...
The Department of Statistical Science at Cornell University
The Department of Statistical Science at Cornell University Biometry Statistics
2015/8/14
Our department offers three programs at the undergraduate and graduate levels. Students can earn a BA in either Biometry or Statistics. The MPS offers students the opportunity to earn a professional M...