Claeskens, Gerda; Silverman, Bernard W.; Slaets, Leen - In: Journal of the Royal Statistical Society Series B 72 (2010) 5, pp. 673-694
Warping is an approach to the reduction and analysis of phase variability in functional observations, by applying a smooth bijection to the function argument. We propose a natural representation of warping functions in terms of a new type of elementary functions named 'warping component...