He received his diploma (2007) in computer science and his master degree (2008) and PhD (2011) in computational intelligence and systems science from Tokyo Institute of Technology, Japan. He was a research fellow of Japan Society for the Promotion of Science for one year (2010-2011) at Tokyo Institute of Technology. Afterwords, he was a post-doctoral research fellow at INRIA Saclay Ile-de-France (2011-2013) and started working at Shinshu University in April 2013. His research interests include design principles and theoretical analysis of stochastic search heuristics, especially the Covariance Matrix Adaptation Evolution Strategy.