The V/S test of long-range dependence in random fields

Details The V/S test of long-range dependence in random fields The V/S test of long-range dependence in random fields

2008-07-30

arxiv.org/abs/0807.4853v2

Electronic Journal of Statistics 2008, Vol. 2, 1373-1390

Mathematics

Statistics Theory

Published in at http://dx.doi.org/10.1214/08-EJS280 the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by t

Scientific paper

10.1214/08-EJS280

Recently, Giraitis et al. (2003, [10]) proposed the $V/S$ statistic for testing long memory in random sequences. We generalize this statistic to the setting of random fields. The null hypothesis is concerned with short memory random fields while the alternative contains a very large family of long memory random fields. Contrary to most of the previous works dealing with long-range dependence, no assumption is made about the isotropy of the strong dependence. Some simulations are presented in order to assess the power of the test according to the kind of long memory in presence.

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