Wolfgang Jank, PhD, is Associate Professor in the Department of Decision, Operations & Information Technologies at the Robert H. Smith School of Business, the University of Maryland. He has authored or coauthored over fifty refereed articles in his areas of research interest, which include stochastic optimization and Monte Carlo methods; nonparametric statistics and functional data analysis; and the application of ... Read morestatistical problem-solving to electronic commerce, marketing, aviation, and operations management. Galit Shmueli, PhD, is Associate Professor and Director of the eMarkets Research Laboratory in the Department of Decision, Operations & Information Technologies at the Robert H. Smith School of Business, the University of Maryland. She has authored or coauthored over fifty refereed articles in her main area of research: the development and adoption of statistical methods to nonstandard data with applications to the fields of electronic commerce and biosurveillance. Dr. Shmueli is the coauthor of Data Mining for Business Intelligence: Concepts, Techniques, and Applications in Microsoft Office Excel® with XLMiner®, also published by Wiley. Show Less