Alkis is a senior research scientist at Hewlett Packard Labs - Analytics Lab. He received a Diploma in Electrical and Computer Engineering and Ph.D. degree in Computer Science from the National Technical University of Athens (NTUA), Greece, in 2000 and 2004, respectively. Following that, he worked at IBM Almaden Research Center and he was a research visitor at Infolab of Stanford University. Research Interests Alkis' research interests include scalable big data infrastructure, big data flow processing and optimization, data-intensive analytics, massively parallel processing, real-time business intelligence, query processing/optimization, data cleaning, and advanced, user-friendly query interfaces focusing on keyword search and NLP techniques.