In this paper we present a new evolutionary algorithm designed to efficiently search for optimal Golomb rulers. The proposed approach uses a redundant random keys representation to codify the information contained in a chromosome and relies on a simple interpretation algorithm to obtain feasible solutions. Experimental results show that this method is successful in quickly identifying good solu...

A frican economies export primary commodities, and most export little else. Policymakers as well as economists and historians of African economic development have seen these exports as both a hope and a curse. The following parable tells the story: Once upon a time, a servant of the ruler discovered a miraculous plant, which grew readily in that country, and whose seeds could be woven into fine...

A frican economies export primary commodities, and most export little else. Policymakers as well as economists and historians of African economic development have seen these exports as both a hope and a curse. The following parable tells the story: Once upon a time, a servant of the ruler discovered a miraculous plant, which grew readily in that country, and whose seeds could be woven into fine...

An evolutionary algorithm based on Random Keys to represent Golomb Rulers segments has been found to be a reliable option for finding Optimal Golomb Rulers in a short amount of time, when comparing with standard methods. This paper presents a modified version of this evolutionary algorithm where the maximum segment length for a Golomb Ruler is also part of the evolutionary process. Attained exp...

This paper focuses on the performance evaluation of complex man-made systems, such as assembly lines, electric power grid, traffic systems, and various paper processing bureaucracies, etc. For such problems, applying the traditional optimization tool of mathematical programming and gradient descent procedures of continuous variables optimization are often inappropriate or infeasible, as the des...

In this paper, we present a new family of 3-D single pulse per plane codes for differential detection (SPDD) for optical cdma systems (based on the 1-D golomb ruler sequences), which achieve good code cardinality and a very high BER performance. The improved BER performance is obtained by using two codes to encode ‘1’ and ‘0’ bits in the encoder and adopting the Differential Detection in the re...

The aim of this project is the development of a pedagogical tool that could address the needs related to the learning process of the blind and could also be used in the pedagogical process of people who are visually impaired. This project also has the objective of showing how the forms of the Ruler of Inclusion were planned in order to facilitate learning while addressing issues related to its ...

Abstract How should we understand the Confucian doctrine of rectification names (zhengming): what does it mean that an object’s name must be in accordance with its reality, and why matter? The aim this paper is to answer question by advocating a novel interpretation later Confucian, Xunzi’s account doctrine. Xunzi claims sage-kings ascribe values objects convention, since they are sages, know t...