20 COMPUTER PUBLISHED BY THE IEEE COMPUTER SOCIETY 0018-9162/15/$31.00 © 2015 IEEE 20 COMPUTER PUBLISHED BY THE IEEE COMPUTER SOCIETY 0018-9162/15/$31.00 © 2015 IEEE GUEST EDITORS’ INTRODUCTION Venkat N. Gudivada, Marshall University Ricardo Baeza-Yates, Yahoo Labs Vijay V. Raghavan, University of Louisiana Despite some key problems, big data could fundamentally change scientific research methodology and how businesses develop products and provide services. Big Data: Promises and Problems