نتایج جستجو برای: pso دو سطحی

تعداد نتایج: 297895  

2014
Aashish Kumar Bohre Ganga Agnihotri Manisha Dubey Jitendra Singh

The proposed work introducing new coefficients and some modern control parameters such as sensitivity (s(t)) and probability of nectar (p(t)) and modification of the conventional parameter (Φ). With presenting these parameters the performance and searching ability of the BF-PSO is significantly increased compared to standered PSO. This new algorithm is inspired by the intelligent behavior of bu...

2015
Ying Sun Yuelin Gao

Stock price prediction is the main concern for financial firms and private investors. In this paper, we proposed a hybrid BP neural network combining adaptive PSO algorithm (HBP-PSO) to predict the stock price. HBP-PSO takes full use of the global searching capability of PSO and the local searching advantages of BP Neural Network. The PSO algorithm is applied for training the connection weights...

2015
ZHANG Yu LIU Feng HAN Jie

UAVs are attracting more and more attentions for their versatilities and low costs. This paper focuses on their security and considers launching jamming attacks on them. We firstly formulate the UAVs jamming problem. Secondly the PSO (Particle Swarm Optimization) algorithm is introduced and new metrics like AJRL (Area for jamming a receiving link) and NJRL (Number of AJRLs) are defined. Then we...

Journal: :CoRR 2007
Sizwe M. Dhlamini Fulufhelo Vincent Nelwamondo Tshilidzi Marwala

The work proposes the application of neural networks with particle swarm optimisation (PSO) and genetic algorithms (GA) to compensate for missing data in classifying high voltage bushings. The classification is done using DGA data from 60966 bushings based on IEEEc57.104, IEC599 and IEEE production rates methods for oil impregnated paper (OIP) bushings. PSO and GA were compared in terms of accu...

2009
Harish Kundra Jagdeep Kaur

In order to overcome the shortcomings of traditional clustering algorithms such as local optima and sensitivity to initialization, a new Optimization technique, Particle Swarm Optimization is used in association with Unsupervised Clustering techniques in this paper. This new algorithm uses the capacity of global search in PSO algorithm and solves the problems associated with traditional cluster...

Journal: :Soft Comput. 2011
Ammar W. Mohemmed Mark Johnston Mengjie Zhang

This paper proposes a new approach to using particle swarm optimisation (PSO) within an AdaBoost framework for object detection. Instead of using exhaustive search for finding good features to be used for constructing weak classifiers in AdaBoost, we propose two methods based on PSO. The first uses PSO to evolve and select good features only and the weak classifiers use a simple decision stump....

2005
Crina Grosan Ajith Abraham Sang-Yong Han Alexander F. Gelbukh

Particle Swarm Optimization (PSO) technique has proved its ability to deal with very complicated optimization and search problems. Several variants of the original algorithm have been proposed. This paper proposes a novel hybrid PSO evolutionary algorithm for solving the well known geometrical place problems. Finding the geometrical place could be sometimes a hard task. In almost all situations...

Journal: :J. UCS 2012
Kusum Deep Jagdish Chand Bansal

Particle Swarm Optimization (PSO) is a swarm intelligence optimization method inspired from birds’ flocking or fish schooling. Many improved versions of PSO are reported in literature, including some by the authors. Original as well as improved versions of PSO have proven their applicability to various fields like science, engineering and industries. Economic dispatch (ED) problem is one of the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده فنی و مهندسی 1392

انبارهای متقاطع یک استراتژی لجستیک است که ایده ی اصلی آن ادغام تقاضای مشتریان از چند منبع و انتقال مستقیم محموله ها به مشتریان، بدون ذخیره کردن آن ها است. پیاده سازی انبارهای متقاطع اهداف مختلفی را می تواند دنبال کند که شامل یکپارچگی حمل و نقل، زمان تحویل کوتاهتر، کاهش هزینه ها و غیره است. در دنیای واقعی زمان ورود کامیون ها به صورت قطعی مشخص نیست، عدم قطعیت و وجود تغییرات کار برنامه ریزی را برا...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1389

تخمین ساختار ثانویه پروتئین یکی از مهمترین مسائل در بیوانفورماتیک است. این تخمین معمولاً با روش های آزمایشگاهی انجام می گیرد که به دلیل هزینه بر و زمان بر بودن آن، یافتن راه حلی ارزانتر با زمان محاسبه معقول مورد توجه محققین قرار گرفته است. روش های رایانه ای گوناگون مانند شبکه های عصبی مصنوعی و مدل مارکف مخفی (hmm) ، راه حل های پیشنهادی برای تخمین ساختار ثانویه پروتئین هستند. اگرچه با استفاده از ...

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