Burstiness of Human Physical Activities and Their Characterization

Human behavior is known to be heterogeneous and fluctuates temporally. Many studies have focused on the fluctuation of Inter-Event Times (IETs), times between one action next in various types human behavior. The existence this cannot explained by a stationary random Poisson process called burstiness. In study, we collected physical activity data while specifying age subjects their situations (e.g., children's play adults' housework) analyzed event time series. We confirmed that burstiness both children adults. Especially, 2-3 year is, for first as far know, observed. also each situation has its own specific IETs distribution characteristics. Our results may provide important clues identifying mechanisms activities.