water conveyance systems (wcss) are costly infrastructures in terms of materials, construction, maintenance and energy requirements. much attention has been given to the application of optimization methods to minimize the costs associated with such infrastructures. historically, traditional optimization techniques have been used, such as linear and non-linear programming. in this paper, applica...

In this paper, a new algorithm for solving the single loop routing problem is presented. The purpose of the single loop routing problem(SLRP) is to find the shortest loop for an automated guided vehicle covering at least one edge of each department of a block layout. First it shown that this problem can be represented as a graph model. Then a meta-heuristic algorithm based on and colony system ...

Intruders often combine exploits against multiple vulnerabilities in order to break into the system. Each attack scenario is a sequence of exploits launched by an intruder that leads to an undesirable state such as access to a database, service disruption, etc. The collection of possible attack scenarios in a computer network can be represented by a directed graph, called network attack gra...

Form the view of the biological viewpoint; each ant of social insects is regarded as neuron. They compose a neural network by stochastic and loose connections with each other; Similar to the artificial neural network simulating the ant colony, the Ant colony algorithm of binary network is presented. As the binary coding is adapted, lower aptitude behave of single ant is requested, less storage ...

the heterogeneous fixed fleet open vehicle routing problem (hffovrp) is one of the most significant extension problems of the open vehicle routing problem (ovrp). the hffovrp is the problem of designing collection routes to a number of predefined nodes by a fixed fleet number of vehicles with various capacities and related costs. in this problem, the vehicle doesn’t return to the depot after se...

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...

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...

the edges of an image define the image boundary. when the image is noisy, it does not become easy to identify the edges. therefore, a method requests to be developed that can identify edges clearly in a noisy image. many methods have been proposed earlier using filters, transforms and wavelets with ant colony optimization (aco) that detect edges. we here used aco for edge detection of noisy ima...

An innovative ant colony algorithm called memory-based ant colony algorithm is proposed to solve the bipartite subgraph problem. In the proposed algorithm, artificial ant has memory of solution found previously, and can use it to construct a new solution. Besides, in the proposed algorithm two kinds of pheromone and two kinds of heuristic information are also adopted to reinforce the search abi...