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Brendan Tierney, Oracle ACE Director, is an independent consultant (Oralytics) and lectures on data science, databases, and Big Data at the Dublin Institute of Technology/Dublin Technological University. He has 24+ years of experience working in the areas of data mining, data science, Big Data, and data warehousing. He is a regular presenter around the World including Ireland, UK, Belgium, Holland, Norway, Baltics, Spain, Canada, and USA. He has published 4 books in Data Science, Predictive Analytics, In-Database R and SQL , PL/SQL Development in Oracle. Web and blog: oralytics.com