Hurst Exponents For Short Time Series
arXiv:1211.2862 · doi:10.1103/PhysRevE.84.066114
Abstract
A new concept, called balanced estimator of diffusion entropy, is proposed to detect scalings in short time series. The effectiveness of the method is verified by means of a large number of artificial fractional Brownian motions. It is used also to detect scaling properties and structural breaks in stock price series of Shanghai Stock market.
6 pages, 4 figures