Thilina Gunarathne is a senior data scientist at KPMG LLP. He led the Hadoop-related efforts at Link Analytics before its acquisition by KPMG LLP. He has extensive experience in using Apache Hadoop and its related technologies for large-scale data-intensive computations. He coauthored the first edition of this book, Hadoop MapReduce Cookbook, with Dr. Srinath Perera. Thilina has contributed to several open source projects at Apache Software Foundation as a member, committer, and a PMC member. He has also published many peer-reviewed research articles on how to extend the MapReduce model to perform efficient data mining and data analytics computations in the cloud. Thilina received his PhD and MSc degrees in computer science from Indiana University, Bloomington, USA, and received his bachelor of science degree in computer science and engineering from University of Moratuwa, Sri Lanka.