Before revision:  For  Rich Lines and Exact Fitting , we present a randomized Monte Carlo algorithm that achieves a lower running time than that of Guibas et al.'s algorithm [  Computational Geometry 1996], for a wide range of the parameter \lambda.
After revision:  For  and Exact Fitting , we present a randomized Monte Carlo algorithm that achieves a lower running time than that of Guibas et al.'s algorithm [  Computational Geometry 1996], for a wide range of the parameter \lambda.