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...

This paper presents a simulated annealing (SA)-based algorithm for fast and robust block motion estimation. To reduce computational complexity, the existing fast search algorithms move iteratively toward the winning point based only on a finite set of checking points in every stage. Despite the efficiency of these algorithms, the search process is easily trapped into local minima, especially fo...

Cell placement is an important phase of current VLSI circuit design styles such as standard cell, gate array, and Field Programmable Gate Array (FPGA). Although nondeterministic algorithms such as Simulated Annealing (SA) were successful in solving this problem, they are known to be slow. In this paper, a neural network algorithm is proposed that produces solutions as good as SA in substantiall...

The following paper describes and discusses the suitability of the particle swarm optimization (PSO), of the simulated annealing algorithm (SA) and of the genetic algorithm (GA) for the employment with blind adaptation of the directional characteristic of array antennas. By means of extensive simulations, it was confirmed that the suggested PSO and SA and the improved GA are able to follow dyna...

Efficient-Energy Coverage (EEC) has been a vital problem for Wireless Sensor Networks (WSN) due to inadequate energy utilization by non inheritable restriction of sensors effectively. So, scheduling of the activities of the devices in a WSN becomes imperative to save the networks' limited energy and lengthen its lifetime. This paper describes Ant Colony based Scheduling Algorithm (ACB-SA) appli...

The methods presented in this work provide a potential tool for characterizing contaminant source zones in terms of mass flux. The problem was conceptualized by considering contaminant transport through a vertical "flux plane" located between a source zone and a downgradient region where contaminant concentrations were measured. The goal was to develop a robust method capable of providing a sta...

Earth dam is a structure as homogeneous or non-homogeneous forms for raising water level or water supply. Earth dam consist of different parts that one of the main parts is clay core. Choosing an optimal non permeable core which causes reduction of seepage through dam body and also being stable is necessary. The objective of this research is to optimize the geometry of earth dam clay core such ...

A two-phase descent direction method for unconstrained stochastic optimization problem is proposed. A line search method with an arbitrary descent direction is used to determine the step sizes during the initial phase, and the second phase performs the stochastic approximation (SA) step sizes. The almost sure convergence of the proposed method is established, under standard assumption for desce...

Simulated Annealing (SA) is a powerful stochastic search method that can produce very high quality solutions for hard combinatorial optimization problem. In this paper, we applied this SA method to optimize our 3D hierarchical reconstruction neural network (NN). This NN deals with complicated task to reconstruct a complete representation of a given object relying only on a limited number of vie...