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2015 c 11 21 F { 22 F · R ó { 0 R ´ k X Ú O ©Û õ U 9 r ã õ U − ó ¸Ú ^ X Ú §d # Ü =...

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第八届中国 R 语言会议(上海会场)

会议指南

1. 日程安排

11 月 21 日 注册和主会场报告 华东师大中山北路校区,大礼堂

11 月 22 日 分会场报告 华东师大中山北路校区,科学会堂报告厅

11 月 22 日 分会场报告 华东师大中山北路校区,逸夫楼一楼报告厅

2. 会议议程

11 月 21 日,大礼堂

时间 内容 嘉宾 主持人

09:00‐09:10  领导致辞 张日权

林祯舜

09:10‐09:20  主席致辞 练勇强

09:20‐09:55  数据科学家的机遇、成长和创新创业 宣晓华

09:55‐10:30 Libra-an R package as Linearized BRegman

Algorithm for High Dimensional Statistics 姚远

10:30‐10:50  Break

10:50‐11:25  大数据时代的可视化机遇 陈为

汤银才 11:25‐12:00 

如何在一个 BI 平台上实现数据准备、探索式分析

和深度分析 王桐

午餐

14:00‐14:30  互联网变现与计算广告 刘鹏

李舰 14:30‐15:00  利害数据与关键分析技术 邹庆士

15:00‐15:30  当 R 真的遇到大数据:金融和学生学业质量溯因 谢军

15:30‐15:50  Break

15:50‐16:20  秩序的作用:商品陈列整齐是否总是比凌乱好? 叶巍岭

魏太云 16:20‐16:50  R + Spark = 大数据时代的 R:SparkR 介绍 孙锐

16:50‐17:20  R 在开放数据的应用 谢宗震

1l3¥I R�ó¬ÆÃþ§þ°§ 2015c 11� 21F – 22FÌ�µuÀ���ÆÚOÆ�¶1 9�

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11 月 22 日,科学会堂报告厅

金融大数据会场

时间 内容 嘉宾 主持人

09:00‐09:30  二级市场、数据、趋势 刘道明

刘钟毓 09:30‐10:00  互联网金融产品创新及经营活动中的挑战 邓一硕

10:00‐10:30  大数据反欺诈的实践与应用 张昊

10:30‐10:50  Break

10:50‐11:20  当金融工程遇到 R 任坤

李浩 11:20‐11:50 

影响台股指数涨跌的关键变量之分析:递归分类模

型之运用 李孟育

午餐

工具及可视化会场

14:00‐14:30  商业大数据时代,GIS 和 R 更配 何宇兵

龚航俊 14:30‐15:00  R and Tableau: Smart Meets Fast 胡羡祺

15:00‐15:30  slidify+rCharts+ECharts 制作炫酷 HTML5 报告 严紫丹

15:30‐15:50  Break

15:50‐16:20  借助 API 快速搭建自然语言处理平台 邢代涛

王昱栋 16:20‐16:50  从用 R 读琅琊榜小说讲讲用 R 读书的一些事 张云雁

16:50‐17:20  数据科学的博客:从 knitr 到 jekyll 郎大为

11 月 22 日,逸夫楼一楼报告厅

互联网会场

时间 内容 嘉宾 主持人

09:00‐09:30  旅游 O2O 行内数据解析 张翔

胡优 09:30‐10:00  里子和面子:R 语言及数据挖掘助力京东推荐系统 熊熹

10:00‐10:30  Growth hacking?App 增长分析新玩法 任万凤

10:30‐10:50  Break

10:50‐11:20  当游戏数据遇上 R 语言 谢佳标 练勇强

11:20‐11:50  利用历史业务数据实现系统异常的实时监测 唐力

午餐

统计与机器学习会场

14:00‐14:30  缺失值处理与 R 语言 冯凌秉

王旭 14:30‐15:00  古典概率的一些通用解法 杜传龙

15:00‐15:30  Introduction to Feature Hashing 吴齐轩

15:30‐15:50  Break

15:50‐16:20  贝叶斯动态线性模型的商业化应用 陈堰平

邹苗苗 16:20‐16:50  如何攒一台深度学习服务器 肖凯

16:50‐17:20  旅游数据中的情感分析 毛苏晗

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3. 会议机构

主办单位:

华东师范大学经济与管理学部

华东师范大学统计学院

统计之都(http://cos.name/)

赞助单位:

辰智咨询

华院数据

永洪科技

优酷土豆集团

组委会老师:汤银才 林祯舜 李舰 葛建辉

会议主席:练勇强

副主席:刘钟毓

秘书长:龚航俊

组委会学生:胡优 王昱栋 牛青炎 邹苗苗 李浩 杨丹 王旭 耿晓满

会议详情请参见:http://cos.name/2015/11/2015shanghair

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Libra-an R package as Linearized BRegman

Algorithm for High Dimensional Statistics

��1,∗

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In this first part of the two talk series, a new R package, Libra, will be introduced to solve variable

selection and sparse recovery via a dynamic approach. In the heart of the package, lies an one-line iter-

ative algorithm, namely Linearized Bregman Iteration which has been widely used in large scale image

reconstruction since 2005. Here new application examples in high dimensional statistics will be demon-

strated: linear regression, logistic regression, and discrete graphical models with sparsity constraint. The

limit dynamics of such an algorithm, exhibits a simple gradient descent flow subject to differential in-

clusion constraint in favor of sparsity. Understanding such dynamics will provide us a deep insight on

how model selection can be done with such a simple algorithm, which will be given in the second talk in

the next day. This is a joint work with Stanley Osher (UCLA) and Wotao Yin (UCLA) on theory, as well

as two brilliant students on both theory and the R package, Feng Ruan (Stanford and Peking University)

and Jiechao Xiong (PKU).

∗Professor Yuan Yao received his BS (1996, Harbin Inst. of Technology), MS (1998, Harbin Inst. of Technology), M.Phil

(2002, City U of Hong Kong), and Ph.D. (2006, UC Berkeley). He did his postdoc at Stanford University during 2006 - 2009,

and then he joined Peking University’s School of Mathematical Sciences as a professor of statistics in the Hundred Talents

Program. His current research interests include topological and geometric methods for high dimensional data analysis, sta-

tistical machine learning, as well as their applications in computational biology, computer vision, and information retrieval.

He authored about 40 peer reviewed papers and one research monograph. He served as area or session chair in NIPS and

ICIAM, as well as a reviewer of Foundation of Computational Mathematics, IEEE Trans. Information Theory, J. Machine

Learning Research, and Neural Computation, etc.

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and packages, import saved models, or write new ones directly into calculations, visualizing them in

seconds. Join us to see how you can use Tableau alongside R to speed up your data science projects and

get them in front of more eyes, leading to smarter, data-driven business decisions.

∗Sein Chyi is the Associate Sales Consultant based in Shanghai. She has been working with well-known companies and

established MNC across various industry and countries in Asia Pacific, to integrate and adopt Tableau successfully into their

organizations. With an expertise in Customer Insight Analytics for Retail and Banking industry, Sein Chyi provides effective

solutions that help organization to gain insights and understand their data at the speed of thought. Sein Chyi holds a degree

in Mathematics from Nanyang Technological University Singapore.

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ÚD91,∗

1 Iowa State University

Á�

There are many interesting puzzles related to probability. Many of the puzzles are usually easy to

understand even for people without statistics background, yet very hard to solve. In this talk, I will

discuss some general approaches for solving probability puzzles.

∗ÚOƬ§¢^�Linux fan§?§OÐö§�<Ì�µhttp://www.legendu.net

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Introduction to Feature Hashing

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In the world of online advertising, recommendation systems produce vast amounts of categorical

data. This data has many, many levels of behavioural and text data. Too many to conveniently recode in

R!

A good approach for pre-processing smaller categorical data is ’stats::model.matrix’. However,

this approach is infeasible with recommender system data due to programming inefficiencies and pre-

processing requirements (all data must be read in and synchronized). In this scenario, streaming al-

gorithms are likely to fail while parallel algorithms become too complicated. However a solution has

been found õfeature hashing (also known as the hashing trick). And in 2015, many analysts use this

approach to encode such data. The speaker has developed an R package that efficiently processes

vast amounts of categorical data. This package, Feature Hashing (http://cran.r-project.org/web/

packages/FeatureHashing/index.html) enables R users to easily apply the feature hashing with an

interface similar to ’stats::model.matrix’. Attendees will learn the tips of using the feature hashing, ex-

change the experience of extending formula interface in R, and hear how some R users have successfully

combined Feature Hashing with ’xgboost’ to do text mining. Often use ordinal variables to record inter-

viewees’ attitude in questionnaire survey.

∗Wush Chi-Hsuan Wu (ÇàZ) is a PhD student from the Institute of Electrical Engineering, National Taiwan University,

where he is studying online advertising. He has contributed to several R packages, including digest, RcppCNPy, knitr and

ckanr. Wush is a co-founder of Taiwan R User Group which hosts Machine Learning and Data Mining related talks weekly

on Mondays(http://www.meetup.com/taiwan-R ).

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