nikhil ketkar currently leads the machine learning platform team at flipkartindia' largest ecommerce company he received his phd from washington state university following thathe conducted postdoctoral research at university of north carolina at charlottewhich was followed by brief stint in high-frequency trading at transmarket in chicago more recentlyhe led the data mining team at guavusa startup doing big data analytics in the telecom domainand indixa startup doing data science in the ecommerce domain his research interests include machine learning and graph theory jojo moolayil is an artificial intelligence professional and published author of three books on machine learningdeep learningand iot he is currently working with amazon web services as research scientist in their vancouverbc office in his current role with awsjojo works on researching and developing large-scale solutions for combating fraud and enriching the customer' payment experience in the cloud he is also actively involved as technical reviewer and ai consultant with leading publishers and has reviewed over dozen books on machine learningdeep learningand business analytics ix