dipanjan sarkar is data scientist at intelon mission to make the world more connected and productive he primarily works on data scienceanalyticsbusiness intelligenceapplication developmentand building large-scale intelligent systems he holds master of technology degree in information technology with specializations in data science and software engineering from the international institute of information technologybangalore he is also an avid supporter of self-learningespecially massive open online courses and also holds data science specialization from johns hopkins university on coursera dipanjan has been an analytics practitioner for several yearsspecializing in statisticalpredictiveand text analytics having passion for data science and educationhe is data science mentor at springboardhelping people up-skill on areas like data science and machine learning dipanjan has also authored several books on rpythonmachine learningand analyticsincluding text analytics with pythonapress besides thishe occasionally reviews technical books and acts as course beta tester for coursera dipanjan' interests include learning about new technologyfinancial marketsdisruptive start-upsdata scienceand more recentlyartificial intelligence and deep learning raghav bali is data scientist at intelenabling proactive and data-driven it initiatives he primarily works on data scienceanalyticsbusiness intelligenceand development of scalable machine learning-based solutions he has also worked in domains such as erp and finance with some of the leading organizations in the world raghav has master' degree (gold medalistin information technology from international institute of information technologybangalore raghav is technology enthusiast who loves reading and playing around with new gadgets and technologies he has also authored several books on rmachine learningand analytics he is shutterbugcapturing moments when he isn' busy solving problems xvii