A number of routing algorithms based on the ant-colony metaphor have been proposed for communication networks. However, there has been little work on the performance analysis of ant-routing algorithms. In this paper, we compare the performance of AntNet, an ant-routing algorithm, with Dijkstra’s shortest path algorithm. Our simulations show that the performance of AntNet is comparable to Dijkst...

Over the last Twenty years, several different techniques have been proposed for computer recognition of human faces. The localization of human faces in digital images is a fundamental step in the process of face recognition. In this paper, a Hybrid algorithm is proposed to detect faces using Ant Colony Optimization and Genetic programming algorithms. Evolutionary process of Ant Colony Optimizat...

In this paper, a web search algorithm is proposed, which aims to enhance the amount of the relevant information in respect to a user’s query. The proposed algorithm is based on the Ant Colony Optimization algorithm (ACO), employing in parallel document similarity issues from the field of information retrieval. Ant Colony Optimization algorithms were inspired through the observation of ant colon...

This paper presents an ant system algorithm for the graph coloring problem. This ant system algorithm has several new features compared to previous ant system algorithms for the coloring problem. The main idea of the algorithm is for a colony of ants to color the graph, in which ants use its knowledge about the local neighborhood, recently visited nodes, and information stored at each vertex. F...

Warehouse is one of the important aspects of a company. Therefore, it is necessary to improve Warehouse Management System (WMS) to have a simple function that can determine the layout of the storage goods. In this paper we propose an improved warehouse layout method based on ant colony algorithm and backtracking algorithm. The method works on two steps. First, it generates a solutions parameter...

the prevalent communications networks suffer from lack of spectrum and spectrum inefficiency. this has motivated researchers to develop cognitive radio (cr) as a smart and dynamic radio access promised solution. a major challenge to this new technology is how to make fair assignment of available spectrum to unlicensed users, particularly for smart grids communication. this paper introduces an i...

Abstract: One of the equipment that can help improve distribution system status today and reduce the cost of fault time is remote control switches (RCS). Finding the optimal location and number of these switches in the distribution system can be modeled with various objective functions as a nonlinear optimization problem to improve system reliability and cost. In this article, a particle swarm ...

Clustering is a widespread data analysis and data mining technique in many fields of study such as engineering, medicine, biology and the like. The aim of clustering is to collect data points. In this paper, a Cultural Algorithm (CA) is presented to optimize partition with N objects into K clusters. The CA is one of the effective methods for searching into the problem space in order to find a n...

Grid Systems allow applications to assemble and use collections of resources on an as-needed basis, without regard to its physical location. Grid middleware and other software architecture that manage resources have to locate and allocate resources according to application requirements. They also have to manage other activities like authentication and process creation that are required to prepa...

This paper considers identical parallel machines scheduling problem with past-sequence-dependent setup times, deteriorating jobs and learning effects, in which the actual processing time of a job on each machine is given as a function of the processing times of the jobs already processed and its scheduled position on the corresponding machine. In addition, the setup time of a job on each machin...