THE DATA ANALYTICS Amazon S3 18.02.2017 · Big data analytics and data mining are not the same. Both of them involve the use of large data sets, handling the collection of the data or reporting of the data which is mostly used by businesses. However, both big data analytics and data mining are both used for two different operations. Let’s look deeper at the two terms.
Data Science & Big Data Analytics Wiley Online Books. 25.09.2018 · The White House has invested an incredible $200 million in big data projects – a true testament to the growing importance and relevance of big data analytics across sectors. As of this moment, just 5% of all accessible data is analyzed and used – just think of the potential. The Best Data Analytics And Big Data Books Of All Time, Big Data comes with lots of challenges: Big Data provides opportunities however there are challenges that need to be addressed and overcome 1/2 Strategy • Determine a strategy how to leverage on the benefits of Big Data • Determine business drivers and if Big Data can play a role in better insight.
Data analytics helps you organize and visualize big data to improve campaigns, lift customer satisfaction rates, increase ROI, and respond faster to consumer trends. Your data provides insights that replace gut instinct. But to execute on your data analytics needs, you need to clear some roadblocks of understanding of what the Data Analytics industry is and of what it requires. And so, we set out to discover the answers for ourselves by reaching out to industry leaders, academics, and professionals. This handbook is the first of three parts and will focus on the experiences of current data analysts and data scientists. What
25.11.2013В В· Big Data Analytics with R and Hadoop is a tutorial style book that focuses on all the powerful big data tasks that can be achieved by integrating R and Hadoop.This book is ideal for R developers who are looking for a way to perform big data analytics with Hadoop. on Machine learning, Text Analytics, Big Data Management, and information search and Management. Currently he is employed by EMC Corporation's Big Data management and analytics initiative and product engineering wing for their Hadoop distribution. He is a part of the TeraSort and MinuteSort world records, achieved while working
Big Data Analytics Advanced Analytics in Oracle Database . Big Data Analytics – Advanced Analytics in Oracle Database Disclaimer The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver 03.01.2017 · Register for exam 70-773, and view official preparation materials to get hands-on experience with analyzing big data with Microsoft R. Breaking news from around the world Get the Bing + MSN extension. No thanks Add it now. Perform in-database analytics by using SQL Server
PDF Nowadays, most of the human being on the earth are consuming and producing the data. Elsevier / Morgan Kaufmann [16] P. Zadrozny and R. Kodali, Big Data Analytics using Splunk, Berkeley Utilize R to uncover hidden patterns in your Big Data Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to
Divided into 10 topical volumes, the proceedings present papers on state-of-the-art research, surveys, and succinct reviews. The volumes cover diverse topics ranging from communications networks to big data analytics, and from system architecture to cyber security. This volume focuses on Big Data Analytics. Big data analytics is the process of examining large amounts of data of a variety of types to uncover hidden patterns, unknown correlations, and other useful information. Such information can provide competitive advantages over rival organizations and result in business benefits, such as more effective marketing and increased revenue. New methods of working with big data, such as Hadoop and
Big Data Analytics 5 Traditional Analytics (BI) Big Data Analytics Focus on Data Sets Supports • Descriptive analytics • Diagnosis analytics • Limited data sets • Cleansed data • Simple models • Large scale data sets • More types of data • Raw data • Complex data models • Predictive analytics • Data Science Causation: what Introduction to Big Data Xiaomeng Su, Institutt for informatikk og e-læring ved NTNU Learning material is developed for course IINI3012 Big Data Summary: This chapter gives an overview of the field big data analytics. We start with defining the term big data and explaining why it matters.
PDF Nowadays, most of the human being on the earth are consuming and producing the data. Elsevier / Morgan Kaufmann [16] P. Zadrozny and R. Kodali, Big Data Analytics using Splunk, Berkeley 01.07.2016В В· Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Big Data processing.
03.05.2019 · Big Data Analytics with R Utilize R to uncover hidden patterns in your Big Data About This Book Perform computational analyses on Big Data to generate meaningful results Get a … The many reviews about Big Data Analytics with R before purchasing it in order to gage whether or not it would be worth my time, and all praised Big Data Analytics with R: 0 of 0 review helpful This is an excellent book It is so from the purely technical By Wolf This is an excellent book It is
17.09.2016В В· Abstract. The age of big data is now coming. But the traditional data analytics may not be able to handle such large quantities of data. The question that arises now is, how to develop a high performance platform to efficiently analyze big data and how to design an appropriate mining algorithm to find the useful things from big data. BIG DATA DEFINITION Big Data Analytics Using R Eddie Aronovich October 23, 2014 Eddie Aronovich Big Data Analytics Using R. BIG DATA DEFINITION Parallelization principles Tools Summary Table of contents 1 BIG DATA DEFINITION De nition Characteristics
BIG DATA DEFINITION Big Data Analytics Using R Eddie Aronovich October 23, 2014 Eddie Aronovich Big Data Analytics Using R. BIG DATA DEFINITION Parallelization principles Tools Summary Table of contents 1 BIG DATA DEFINITION De nition Characteristics The many reviews about Big Data Analytics with R before purchasing it in order to gage whether or not it would be worth my time, and all praised Big Data Analytics with R: 0 of 0 review helpful This is an excellent book It is so from the purely technical By Wolf This is an excellent book It is
Big Data Analytics with R and Hadoop by Vignesh Prajapati. Using R for Big Data Advanced Analytics and Machine Learning Hands-On Lab Using Oracle R Enterprise Mark Hornick Using R for Big Data AA and Machine Learning (advanced OAA / Oracle R Enterprise 1.5.1 Predictive Analytics algorithms in-Database • Decision Tree • Logistic Regression, 18.02.2017 · Big data analytics and data mining are not the same. Both of them involve the use of large data sets, handling the collection of the data or reporting of the data which is mostly used by businesses. However, both big data analytics and data mining are both used for two different operations. Let’s look deeper at the two terms..
(PDF) Big Data Analytics. 18.02.2017 · Big data analytics and data mining are not the same. Both of them involve the use of large data sets, handling the collection of the data or reporting of the data which is mostly used by businesses. However, both big data analytics and data mining are both used for two different operations. Let’s look deeper at the two terms. https://fr.wikipedia.org/wiki/Apache_Spark Big data analytics. Turn data into actionable insights with a comprehensive and serverless data analytics and machine-learning platform. Try it free Contact sales. Reimagine what data analytics can do. Accelerate time to insights and leave the complexities of data analytics behind with Google Cloud Platform (GCP). Realize the benefits of.
18.02.2017 · Big data analytics and data mining are not the same. Both of them involve the use of large data sets, handling the collection of the data or reporting of the data which is mostly used by businesses. However, both big data analytics and data mining are both used for two different operations. Let’s look deeper at the two terms. SPECIAL ISSUE: BUSINESS INTELLIGENCE RESEARCH BUSINESS INTELLIGENCE AND ANALYTICS: FROM BIG DATA TO BIG IMPACT Hsinchun Chen Eller College of Management, University of Arizona, Tucson, AZ 85721 U.S.A. {hchen@eller.arizona.edu} Roger H. L. Chiang Carl H. Lindner College of Business, University of Cincinnati,
Big Data Analytics - Introduction to R - This section is devoted to introduce the users to the R programming language. R can be downloaded from the cran … Introduction to Big Data Xiaomeng Su, Institutt for informatikk og e-læring ved NTNU Learning material is developed for course IINI3012 Big Data Summary: This chapter gives an overview of the field big data analytics. We start with defining the term big data and explaining why it matters.
Units 1-5 have covered the fundamentals of R, Big Data and the Big Data ecosystem. This unit gives an overview of Big Data analytics techniques and explains the phases of the data analytics life cycle. Moreover, some real world examples where Big Data analytics could be applied, are described. Big Data comes with lots of challenges: Big Data provides opportunities however there are challenges that need to be addressed and overcome 1/2 Strategy • Determine a strategy how to leverage on the benefits of Big Data • Determine business drivers and if Big Data can play a role in better insight
Utilize R to uncover hidden patterns in your Big Data Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Using R for Big Data Advanced Analytics and Machine Learning Hands-On Lab Using Oracle R Enterprise Mark Hornick Using R for Big Data AA and Machine Learning (advanced OAA / Oracle R Enterprise 1.5.1 Predictive Analytics algorithms in-Database • Decision Tree • Logistic Regression
01.07.2016 · Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Big Data processing. 26.08.2019 · Now that you know the differences, which one do you think is most suited for you – Data Science? Big Data? Or Data Analytics? You can check the Course Preview of our Data Science Training with R here. Simplilearn has dozens of data science, big data, and data analytics courses online, including our Integrated Program in Big Data and Data Science.
RODBC Package Connecting to external DB from R to retrieve and handle data stored in the DB RODBC package support connection to SQL-based database (DBMS) such as: Oracle, SQL Server, SQLite, MySQL and more Require an ODBC driver which usually comes with the DBMS Windows offer an ODBC driver to flat files and Excel Supports client-server architecture Units 1-5 have covered the fundamentals of R, Big Data and the Big Data ecosystem. This unit gives an overview of Big Data analytics techniques and explains the phases of the data analytics life cycle. Moreover, some real world examples where Big Data analytics could be applied, are described.
Big Data comes with lots of challenges: Big Data provides opportunities however there are challenges that need to be addressed and overcome 1/2 Strategy • Determine a strategy how to leverage on the benefits of Big Data • Determine business drivers and if Big Data can play a role in better insight BIG DATA DEFINITION Big Data Analytics Using R Eddie Aronovich October 23, 2014 Eddie Aronovich Big Data Analytics Using R. BIG DATA DEFINITION Parallelization principles Tools Summary Table of contents 1 BIG DATA DEFINITION De nition Characteristics
Big data analytics refers to the method of analyzing huge volumes of data, or big data. The big data is collected from a large assortment of sources, such as social networks, videos, digital Big Data Analytics with R and Hadoop is focused on the techniques of integrating R and Hadoop by various tools such as RHIPE and RHadoop. A powerful data analytics engine can be built, which can process analytics algorithms over a large scale dataset in a scalable manner.
07.11.2019 · Currently, demand for workers with analytical expertise is extremely high – join us to obtain a comprehensive introduction into the critical and practical elements of big data analytics, including: data structure, warehousing, statistics, analysis, patterns, trends, relevancy, model building, visualization techniques and more. Data analytics helps you organize and visualize big data to improve campaigns, lift customer satisfaction rates, increase ROI, and respond faster to consumer trends. Your data provides insights that replace gut instinct. But to execute on your data analytics needs, you need to clear some roadblocks
01.07.2016В В· Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Big Data processing. The many reviews about Big Data Analytics with R before purchasing it in order to gage whether or not it would be worth my time, and all praised Big Data Analytics with R: 0 of 0 review helpful This is an excellent book It is so from the purely technical By Wolf This is an excellent book It is
03.01.2017В В· Register for exam 70-773, and view official preparation materials to get hands-on experience with analyzing big data with Microsoft R. Breaking news from around the world Get the Bing + MSN extension. No thanks Add it now. Perform in-database analytics by using SQL Server 11.10.2016В В· Venkat Ankam has over 18 years of IT experience and over 5 years in big data technologies, working with customers to design and develop scalable big data applications. Having worked with multiple clients globally, he has tremendous experience in big data analytics using Hadoop and Spark.
(PDF) BIG DATA ANALYTICS WHAT IT IS AND WHAT IT ISN'T. Divided into 10 topical volumes, the proceedings present papers on state-of-the-art research, surveys, and succinct reviews. The volumes cover diverse topics ranging from communications networks to big data analytics, and from system architecture to cyber security. This volume focuses on Big Data Analytics., SPECIAL ISSUE: BUSINESS INTELLIGENCE RESEARCH BUSINESS INTELLIGENCE AND ANALYTICS: FROM BIG DATA TO BIG IMPACT Hsinchun Chen Eller College of Management, University of Arizona, Tucson, AZ 85721 U.S.A. {hchen@eller.arizona.edu} Roger H. L. Chiang Carl H. Lindner College of Business, University of Cincinnati,.
(PDF) Big Data Analytics. Big Data comes with lots of challenges: Big Data provides opportunities however there are challenges that need to be addressed and overcome 1/2 Strategy • Determine a strategy how to leverage on the benefits of Big Data • Determine business drivers and if Big Data can play a role in better insight, The many reviews about Big Data Analytics with R before purchasing it in order to gage whether or not it would be worth my time, and all praised Big Data Analytics with R: 0 of 0 review helpful This is an excellent book It is so from the purely technical By Wolf This is an excellent book It is.
If you’re an R developer looking to harness the power of big data analytics with Hadoop, then this book tells you everything you need to integrate the two. You’ll end up capable of building a data analytics engine with huge potential. Big data analytics is the process of examining large amounts Introduction to Python Data Analytics June 5th, 2017 Kang P. Lee ITS-RS / UI3. 2 Course Outline •Supporting various research on campus on big data and social media analytics •Taking the role of a data analytics consultant with a primary focus on social media analytics
Microsoft R Server provides computational and data size scalability through ScaleR, a library of big data analytics algorithms. Microsoft R Server ScaleR provides data scientists with a range of R algorithms that provide transparent parallelization of computations and data analysis they can easily scale to Big Data. ScaleR brings big data Data analytics helps you organize and visualize big data to improve campaigns, lift customer satisfaction rates, increase ROI, and respond faster to consumer trends. Your data provides insights that replace gut instinct. But to execute on your data analytics needs, you need to clear some roadblocks
Utilize R to uncover hidden patterns in your Big Data Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Introduction to Python Data Analytics June 5th, 2017 Kang P. Lee ITS-RS / UI3. 2 Course Outline •Supporting various research on campus on big data and social media analytics •Taking the role of a data analytics consultant with a primary focus on social media analytics
Big data analytics is the process of examining large amounts of data of a variety of types to uncover hidden patterns, unknown correlations, and other useful information. Such information can provide competitive advantages over rival organizations and result in business benefits, such as more effective marketing and increased revenue. New methods of working with big data, such as Hadoop and The many reviews about Big Data Analytics with R before purchasing it in order to gage whether or not it would be worth my time, and all praised Big Data Analytics with R: 0 of 0 review helpful This is an excellent book It is so from the purely technical By Wolf This is an excellent book It is
Big Data Analytics Advanced Analytics in Oracle Database . Big Data Analytics – Advanced Analytics in Oracle Database Disclaimer The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver WHAT IS BIG DATA ANALYTICS AND WHAT MAKES IT SO POWERFUL? The Problem 05 WHAT IS BIG DATA ANALYTICS? Before Hadoop, we had limited storage and compute, which led to a long and rigid analytics process (see below).
Twitter Data Analysis with R Yanchang Zhao RDataMining.com analytics australia big canberra data course group example introduction mining learn network package position rdatamining r r, data, mining, example, pdf, series, available r, mining, data, analysing, university, slide, network Twitter Data Analysis with R Yanchang Zhao RDataMining.com analytics australia big canberra data course group example introduction mining learn network package position rdatamining r r, data, mining, example, pdf, series, available r, mining, data, analysing, university, slide, network
01.07.2016 · Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Big Data processing. 18.02.2017 · Big data analytics and data mining are not the same. Both of them involve the use of large data sets, handling the collection of the data or reporting of the data which is mostly used by businesses. However, both big data analytics and data mining are both used for two different operations. Let’s look deeper at the two terms.
If you’re an R developer looking to harness the power of big data analytics with Hadoop, then this book tells you everything you need to integrate the two. You’ll end up capable of building a data analytics engine with huge potential. Big data analytics is the process of examining large amounts Data analytics helps you organize and visualize big data to improve campaigns, lift customer satisfaction rates, increase ROI, and respond faster to consumer trends. Your data provides insights that replace gut instinct. But to execute on your data analytics needs, you need to clear some roadblocks
big data analytics is great and is clearly established by a growing number of studies. The keys to success with big data analytics include a clear business need, strong committed sponsorship, alignment between the business and IT strategies, a fact-based decision-making culture, a strong data infrastructure, the right analytical tools, and people 03.05.2019 · Big Data Analytics with R Utilize R to uncover hidden patterns in your Big Data About This Book Perform computational analyses on Big Data to generate meaningful results Get a …
Using R for Big Data Advanced Analytics and Machine Learning Hands-On Lab Using Oracle R Enterprise Mark Hornick Using R for Big Data AA and Machine Learning (advanced OAA / Oracle R Enterprise 1.5.1 Predictive Analytics algorithms in-Database • Decision Tree • Logistic Regression 03.01.2017 · Register for exam 70-773, and view official preparation materials to get hands-on experience with analyzing big data with Microsoft R. Breaking news from around the world Get the Bing + MSN extension. No thanks Add it now. Perform in-database analytics by using SQL Server
Exam 70-773 Analyzing Big Data with Microsoft R. Using R for Big Data Advanced Analytics and Machine Learning Hands-On Lab Using Oracle R Enterprise Mark Hornick Using R for Big Data AA and Machine Learning (advanced OAA / Oracle R Enterprise 1.5.1 Predictive Analytics algorithms in-Database • Decision Tree • Logistic Regression, 26.08.2019 · Now that you know the differences, which one do you think is most suited for you – Data Science? Big Data? Or Data Analytics? You can check the Course Preview of our Data Science Training with R here. Simplilearn has dozens of data science, big data, and data analytics courses online, including our Integrated Program in Big Data and Data Science..
Download Big Data Analytics with R PDF. Big Data comes with lots of challenges: Big Data provides opportunities however there are challenges that need to be addressed and overcome 1/2 Strategy • Determine a strategy how to leverage on the benefits of Big Data • Determine business drivers and if Big Data can play a role in better insight, Introduction to Big Data Xiaomeng Su, Institutt for informatikk og e-læring ved NTNU Learning material is developed for course IINI3012 Big Data Summary: This chapter gives an overview of the field big data analytics. We start with defining the term big data and explaining why it matters..
Big Data Analytics Using R cs.tau.ac.il. 07.11.2019 · Currently, demand for workers with analytical expertise is extremely high – join us to obtain a comprehensive introduction into the critical and practical elements of big data analytics, including: data structure, warehousing, statistics, analysis, patterns, trends, relevancy, model building, visualization techniques and more. https://fr.wikipedia.org/wiki/Apache_Spark on Machine learning, Text Analytics, Big Data Management, and information search and Management. Currently he is employed by EMC Corporation's Big Data management and analytics initiative and product engineering wing for their Hadoop distribution. He is a part of the TeraSort and MinuteSort world records, achieved while working.
Big data analytics is the process of examining large amounts of data of a variety of types to uncover hidden patterns, unknown correlations, and other useful information. Such information can provide competitive advantages over rival organizations and result in business benefits, such as more effective marketing and increased revenue. New methods of working with big data, such as Hadoop and Big data analytics refers to the method of analyzing huge volumes of data, or big data. The big data is collected from a large assortment of sources, such as social networks, videos, digital
The many reviews about Big Data Analytics with R before purchasing it in order to gage whether or not it would be worth my time, and all praised Big Data Analytics with R: 0 of 0 review helpful This is an excellent book It is so from the purely technical By Wolf This is an excellent book It is Using R for Big Data Advanced Analytics and Machine Learning Hands-On Lab Using Oracle R Enterprise Mark Hornick Using R for Big Data AA and Machine Learning (advanced OAA / Oracle R Enterprise 1.5.1 Predictive Analytics algorithms in-Database • Decision Tree • Logistic Regression
Utilize R to uncover hidden patterns in your Big Data Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Using R for Big Data Advanced Analytics and Machine Learning Hands-On Lab Using Oracle R Enterprise Mark Hornick Using R for Big Data AA and Machine Learning (advanced OAA / Oracle R Enterprise 1.5.1 Predictive Analytics algorithms in-Database • Decision Tree • Logistic Regression
Big data analytics refers to the method of analyzing huge volumes of data, or big data. The big data is collected from a large assortment of sources, such as social networks, videos, digital Big Data Analytics Advanced Analytics in Oracle Database . Big Data Analytics – Advanced Analytics in Oracle Database Disclaimer The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver
Twitter Data Analysis with R Yanchang Zhao RDataMining.com analytics australia big canberra data course group example introduction mining learn network package position rdatamining r r, data, mining, example, pdf, series, available r, mining, data, analysing, university, slide, network Big data and analytics. Deliver better experiences and make better decisions by analyzing massive amounts of data in real time. Get the insight you need to deliver intelligent actions that improve customer engagement, increase revenue, and lower costs.
Data analytics helps you organize and visualize big data to improve campaigns, lift customer satisfaction rates, increase ROI, and respond faster to consumer trends. Your data provides insights that replace gut instinct. But to execute on your data analytics needs, you need to clear some roadblocks Big data and analytics. Deliver better experiences and make better decisions by analyzing massive amounts of data in real time. Get the insight you need to deliver intelligent actions that improve customer engagement, increase revenue, and lower costs.
01.07.2016В В· Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Big Data processing. Big data analytics. Turn data into actionable insights with a comprehensive and serverless data analytics and machine-learning platform. Try it free Contact sales. Reimagine what data analytics can do. Accelerate time to insights and leave the complexities of data analytics behind with Google Cloud Platform (GCP). Realize the benefits of
WHAT IS BIG DATA ANALYTICS AND WHAT MAKES IT SO POWERFUL? The Problem 05 WHAT IS BIG DATA ANALYTICS? Before Hadoop, we had limited storage and compute, which led to a long and rigid analytics process (see below). 03.01.2017В В· Register for exam 70-773, and view official preparation materials to get hands-on experience with analyzing big data with Microsoft R. Breaking news from around the world Get the Bing + MSN extension. No thanks Add it now. Perform in-database analytics by using SQL Server
26.08.2019 · Now that you know the differences, which one do you think is most suited for you – Data Science? Big Data? Or Data Analytics? You can check the Course Preview of our Data Science Training with R here. Simplilearn has dozens of data science, big data, and data analytics courses online, including our Integrated Program in Big Data and Data Science. Big data analytics. Turn data into actionable insights with a comprehensive and serverless data analytics and machine-learning platform. Try it free Contact sales. Reimagine what data analytics can do. Accelerate time to insights and leave the complexities of data analytics behind with Google Cloud Platform (GCP). Realize the benefits of
R is the go to language for data exploration and development, but what role can R play in production with big data? In this webinar, we will demonstrate a pragmatic approach for pairing R with big data. You will learn to use R’s familiar dplyr syntax to query big data stored on a server based data store, like Amazon Redshift or Google BigQuery. 07.11.2019 · Currently, demand for workers with analytical expertise is extremely high – join us to obtain a comprehensive introduction into the critical and practical elements of big data analytics, including: data structure, warehousing, statistics, analysis, patterns, trends, relevancy, model building, visualization techniques and more.
SPECIAL ISSUE: BUSINESS INTELLIGENCE RESEARCH BUSINESS INTELLIGENCE AND ANALYTICS: FROM BIG DATA TO BIG IMPACT Hsinchun Chen Eller College of Management, University of Arizona, Tucson, AZ 85721 U.S.A. {hchen@eller.arizona.edu} Roger H. L. Chiang Carl H. Lindner College of Business, University of Cincinnati, SPECIAL ISSUE: BUSINESS INTELLIGENCE RESEARCH BUSINESS INTELLIGENCE AND ANALYTICS: FROM BIG DATA TO BIG IMPACT Hsinchun Chen Eller College of Management, University of Arizona, Tucson, AZ 85721 U.S.A. {hchen@eller.arizona.edu} Roger H. L. Chiang Carl H. Lindner College of Business, University of Cincinnati,