抄録
Entropic chaos degree is a criterion for quantifying chaos by applying information dynamics. Entropic
chaos degree of a time series can be directly computed without any dynamical systems. Some authors
have recently demonstrated that an improved (extended) entropic chaos degree of a difference equation
has nearly the same value as its Lyapunov exponent under typical chaotic conditions. In this paper, chaos
associated with the time series obtained from experiments based on semiconductor laser chaos is
quantified by incorporating the improved entropic chaos degree.
