نتایج جستجو برای: cat swarm optimization

تعداد نتایج: 359721  

Journal: :Expert Syst. Appl. 2011
Yong Zhang Dun-Wei Gong Zhonghai Ding

This paper presents a new multi-objective optimization algorithm in which multi-swarm cooperative strategy is incorporated into particle swarm optimization algorithm, called multi-swarm cooperative multi-objective particle swarm optimizer (MC-MOPSO). This algorithm consists of multiple slave swarms and one master swarm. Each slave swarm is designed to optimize one objective function of the mult...

2013
Serene Bhaskaran Ruchi Varma

In this age of wireless communication, micro strip antennas have drawn maximum attention of antenna community because of its compact size, light weight and low profile configuration. In this paper the problem of locating feed point of an inset fed microstrip patch antenna designed for wireless communication is dealt with. The optimization is done using three techniques: Genetic Optimization (GA...

Journal: :مهندسی بیوسیستم ایران 0
ایشام الزعبی دانشجوی دکتری گروه مهندسی مکانیک ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی رجبی پور استاد گروه مهندسی مکانیک ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران حجت احمدی دانشیار گروه مهندسی مکانیک ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشکاه تهران فرهاد میرزایی استادیار گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

for a uniform distribution of water, decrease in water waste and decrease in erosion of soil, it is important that a land be prepared with proper slopes along its length as well as width. the aim of leveling is to create appropriate slopes for irrigation and drainage on the lands that were not already properly levelled and of the same time creating the level surface with a minimum transport of ...

2013
S. Revathi

Due to access of malicious data in internet, Intrusion detection system becomes an important element in system security that controls real time data and leads to huge dimensional problem, so a data pre-processing is necessary to reduce haziness and to clean network data. To reduce false positive rate and to increase efficiency of detection, the paper proposed a new swarm intelligence technique ...

Journal: :journal of advances in computer engineering and technology 2015
masoud geravanchizadeh sina ghalami osgouei

in this paper, we propose a novel algorithm to enhance the noisy speech in the framework of dual-channel speech enhancement. the new method is a hybrid optimization algorithm, which employs the  combination of  the  conventional θ-pso and the shuffled sub-swarms particle optimization (sspso) technique. it is known that the θ-pso algorithm has better optimization performance than standard pso al...

Journal: :Applied sciences 2022

Lung cancer is the most significant that heavily contributes to cancer-related mortality rate, due its violent nature and late diagnosis at advanced stages. Early identification of lung essential for improving survival rate. Various imaging modalities, including X-rays computed tomography (CT) scans, are employed diagnose cancer. Computer-aided (CAD) models necessary minimizing burden upon radi...

2015
Zahra Assarzadeh Ahmad Reza Naghsh-Nilchi

In this paper, a chaotic particle swarm optimization with mutation-based classifier particle swarm optimization is proposed to classify patterns of different classes in the feature space. The introduced mutation operators and chaotic sequences allows us to overcome the problem of early convergence into a local minima associated with particle swarm optimization algorithms. That is, the mutation ...

Journal: :تحقیقات مالی 0
رضا راعی دانشیار دانشکده مدیریت دانشگاه تهران، ایران هدایت علی بیکی دانشجوی کارشناسی ارشد مدیریت مالی دانشکده مدیریت دانشگاه تهران

the markowitz’s optimization problem is considered as a standard quadratic programming problem that has exact mathematical solutions. considering real world limits and conditions, the portfolio optimization problem is a mixed quadratic and integer programming problem for which efficient algorithms do not exist. therefore, the use of meta-heuristic methods such as neural networks and evolutionar...

2017
B. Shanmugapriya S. Meera

Big data is the slightly abstract phase which describes the relationship between the data size and data processing speed in the system. The many new information technologies the big data deliver dramatic cost reduction, substantial improvements in the required time to perform the computing task or new product and service offerings. The several complicated specific and engineering problems can b...

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