A novel technique is presented in this paper to extract strings in color images of both Business Settlement Plan (BSP) and non-BSP airline coupon. The essential concept is to remove non-text pixels from complex coupon images, rather than extract strings directly. First we transfer color images from RGB to HSV space, which is approximate uniformed, and then remove the black component of images u...

We develop a novel technique to estimate inflation expectations and inflation risk premia when only a limited number of inflation-indexed bonds are available. The method involves pricing coupon-bearing inflation-indexed bonds directly in terms of an affine term structure model, and avoids the usual requirement of estimating zero-coupon real yield curves. We estimate the model using a non-linear...

The need to numerically simulate stochastic processes arises in many elds. Frequently this is done by discretizing the process into small time steps and applying pseudo-random sequences to simulate the randomness. This paper address the question of how to use quasi-Monte Carlo methods to improve this simulation. Special techniques must be applied to avoid the problem of high dimensionality whic...

In this paper we consider an extension of the classical facility location problem where besides n customers, a set of p collection depots are also given. In this setting the service of a customer consists of the travel of a server to the customer and return back to the center via a collection depot. We have analyzed the problem and showed that the collection depots problem can be transformed to...

• A hybrid waste collection system is modeled as an extended periodic location routing problem. New subtour elimination constraints for problems with intermediate facilities are introduced. Factors influencing the service type decision (pickup or bring system) presented. The developed ALNS provides good results also introduction of a pure system. Efficient solid management one most relevant iss...