Minimum equivalent precedence relation systems

Approximating the Minimum Equivalent Digraph

1 Introduction

Approximating The Minimum Equivalent Digraph

Improving Chronological Sentence Ordering by Precedence Relation

It is necessary to find a proper arrangement of sentences in order to generate a well-organized summary from multiple documents. In this paper we describe an approach to coherent sentence ordering for summarizing newspaper articles. Since there is no guarantee that chronological ordering of extracted sentences, which is widely used by conventional summarization system, arranges each sentence be...

The Symmetries of Equivalent Lagrangian Systems and Constants of Motion

In this paper Mathematical structure of time-dependent Lagrangian systems and their symmetries are extended and the explicit relation between constants of motion and infinitesimal symmetries of time-dependent Lagrangian systems are considered. Starting point is time-independent Lagrangian systems ,then we extend mathematical concepts of these systems such as equivalent lagrangian systems to th...

Batch scheduling problem with due-date and fuzzy precedence relation