An Objective Train Timetabling Quality Evaluation Method

Passenger Centric Train Timetabling Problem

The aim of this paper is to analyze and to improve the current planning process of the passenger railway service in light of the recent railway market changes. In order to do so, we introduce the Passenger Centric Train Timetabling Problem. The originality of our approach is that we account for the passenger satisfaction in the design of the timetable. We consider both types of timetable(s): cy...

Objective Quality Evaluation Method for Noise-Reduced Speech

We present a method for objective quality evaluation of noise-reduced speech. The experimental results indicate that residual noise and the distortion of speech and noise influence the perceived degradation of speech quality. Therefore, the proposed method is developed based on the relationship among three factors and subjective quality. We verify the validity of the method by comparing subject...

A search quality evaluation based on objective-subjective method

Commercial search engines, especially meta-search engines was designed to retrieve the information by submitting users’ queries to multiple conventional search engines and integrating their partial searching results generated by each search engine. How to find the best search engine for user queries is know as the selection problem of search engines. Recently, the selection problem has become a...

Train Timetabling Problem for Complex Railway Systems

This paper deals with the design of timetables for complex railway systems. Rail transportation has become a rapid, clean and efficient way to transport passengers and freights. A good timetable design is crucial to ensure the quality of the services trying to improve the efficiency of the whole system. Only such a sustainable transportation system will be in accordance to the requirements of f...

Modeling and Solving the Train Timetabling Problem