Abstract Through the study of ACOTSP, it is found that previous ant colony algorithm will fall into local optimal when increasing pheromone concentration factor. In order to solve problem, we through improved factor view your traveling salesman solving process, simulation experiments due gradually increased with number iterations, and exponential relationship, lead appear even if distance large...

Abstract Rainfall is perhaps the most important source of drinking and agriculture water for inhabitants different parts world, particularly in arid semi-arid area like Iran. Hence, simulation this hydrological phenomenon crucial. The current research attempts to reproduce long-term monthly precipitation Ardabil, Iran, during 44 years from 1976 2020 first time via a hybrid fuzzy technique. For ...

Today, fog and cloud computing environments can be used to further develop the Internet of Things (IoT). In such environments, task scheduling is very efficient for executing user requests, optimal IoT requests increases productivity IoT-fog-cloud system. this paper, a hybrid meta-heuristic (MH) algorithm developed schedule in networks using Aquila Optimizer (AO) African Vultures Optimization A...

In this paper, a multimodal firefly algorithm named the CFA (Coulomb Firefly Algorithm) has been presented based on the Coulomb’s law. The algorithm is able to find more than one optimum solution in the problem search space without requiring any additional parameter. In this proposed method, less bright fireflies would be attracted to fireflies which are not only brighter, but according to the ...

Waste glass is inert and non-degradable which leads to enormous environmental sustainability troubles, but it can be reused in concrete due the potential of pozzolanic activity. This study proposes methods on activity excitation waste powder (WGP) including mechanical, chemical, mechanical-chemical activation. The results showed that mortar containing 30% 75 ?m WGP activated by method was optim...

The firefly algorithm has become an increasingly important tool of Swarm Intelligence that has been applied in almost all areas of optimization, as well as engineering practice. Many problems from various areas have been successfully solved using the firefly algorithm and its variants. In order to use the algorithm to solve diverse problems, the original firefly algorithm needs to be modified o...

Proper cost estimation is one of the vital tasks that must be achieved for software project development. Owing to complexity and uncertainties development process, this task ambiguous difficult. Recently, analogy-based (ABE) has become popular approaches in field due its effectiveness practicability comparing completed projects new estimating effort. However, spite many achievements, method not...

Cognitive Radio Network (CRN) is an emerging technology used to solve spectrum shortage problems in wireless communications. In CRN, unlicensed secondary users (SUs) and licensed primary (PUs) use resources at the same time by avoiding any interference from SUs. However, sensing process CRN often disturbed a security issue known as Primary User Emulation Attack (PUEA). PUEA one of main issues t...

Robust array beamforming is a challenging task in radar, sonar and communications due to the influence of direction arrival (DOA) mismatch sensor position errors. However, how enhance robustness key issue antenna arrays. The current paper focuses on novel approach called improved chicken swarm optimization (ICSO) method settle model conventional linearly constrained minimum variance (LCMV) base...

A solar bifacial photovoltaic (PV) module is designed so that it permits the addition of back electrode to prevailing silicon PV on front side. Hence, has ability harvest energy using its and faces. This study presents an optimization model for calculating extra yield (EY) can be harvested from backside a Firefly Algorithm (FA). Mathematical modelling various parameters influence EY was carried...