Tomo Nakamura Laboratory (Graduate School of Information Science, University of Hyogo)
Nonlinear data analysis ～an interpreted underlying world of phenomena from data (the visible world is not everything)～
Nonlinear data analysis ～an interpreted underlying world of phenomena from data (the visible world is not everything)～
Plainly speaking, my research is "data analysis". Data analysis for me is the use of experience, knowledge, data and computers to solve and discover problems. I make the analyses using data that changes its state depending on time and location in many cases. Although you might think that all data would be the same, in fact they are very different. Among such data, I am particularly interested in phenomena that exhibit complex behaviour involving time delays and nonlinearity. If possible, I would like to do research without samples or examples. It is the kind of research that finds a door that no one else is aware of and opens the door. Hence, the “data analysis” I make might be a kind of philosophy using mathematics, computers, and data. That may have sounded a bit formal, but even now that I am an adult, I try not to lose my childlike spirit and to do romantic, honest and mischievous research.
Data analysis is an application of mathematics using computers for various phenomena that occur in the real world. Many people may think that mathematics is a study to solve patterns and structures in mathematics. Such a mathematics is called "pure mathematics". I turn various thoughts over in my mind using data observed from phenomena. Also, I develop new methods and try to understand the phenomena and solve problems using various methods with the help of mathematics and computers. My major approaches are following four.
Research keywords: time series analysis, statistical modelling, dynamical system, nonlinear phenomena, optimization problems
