Quasi-Monte Carlo (QMC) methods have become important numerical tools in computational finance. Many studies have demonstrated the greater efficiency of QMC relative to Monte Carlo (MC) methods, even for pricing high-dimensional exotic derivative securities. Some of these studies have argued the importance of effective dimension in determining the efficiency of QMC. Consequently, dimension redu...

Introduction: Non-linear resistive grids have been proposed 1,2 for image filtering and segmentation. In these implementations, smoothing of noisy data is obtained through the low pass filtering behavior of these resistive grids for small voltage differences between neighboring pixels. Two different methods are used to obtain segmentation with these resistive grids. One is to use so the called ...

[1] We study the upper mantle P wave velocity structure below the Euro-Mediterranean area, down to 1000 km depth, by seismic travel time tomography. We invert summary residuals constructed with both regional and teleseismic first arrival data reported by the International Seismological Centre (ISC) (1964–1995), introducing some alternative strategies in the travel time tomographic approach and ...