نتایج جستجو برای: pso

تعداد نتایج: 10532  

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 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 ...

2012
Toshiharu Hatanaka Takeshi Korenaga Nobuhiko Kondo Katsuji Uosaki

Particle swarm optimisation (PSO) was developed by Kennedy and Eberhart in 1995 (Kennedy & Eberhart, 1995) inspired by the collective behaviour of natural birds or fish. PSO is a stochastic optimisation technique that uses a behaviour of population composed by many search points called particle. In spite of easy implementation in computer algorithms, it is well known as a powerful numerical opt...

2017
Xin Yang Di Zhang Li-Min Song Qian Xu Hong Li Hui Xu

Peony seed oil (PSO) is a novel vegetable oil developed from the seeds of Paeonia suffruticosa Andr. The present study aimed to make an overall investigation on the chemical profile and antioxidant activities of PSO for reasonable development and utilization of this new resource food. Chemical analysis revealed that PSO was characterized by an uncommon high portion of α-linolenic acid (>38%), f...

2015
Parvinder Kaur Prabhjot Kaur

The Vehicle Routing Problem can be expressed as the problem of designing optimal collection or delivery routes from one or multiple depots to a number of terrestrially scattered customers or cities, subject to side constraints such as time, capacity, mileage etc. The VRP plays a key role in the fields of logistics and transportation. There exist a number of variants of VRPs. Mostly VRPs with fi...

2014
Wenhui Hao Xuenong Zhang Wenwen Zhao Xiuping Chen Joao Rocha

Psoralidin (PSO), a natural furanocoumarin, is isolated from Psoralea corylifolia L. possessing anti-cancer properties. However, the mechanisms of its effects remain unclear. Herein, we investigated its anti-proliferative effect and potential approaches of action on human lung cancer A549 cells. Cell proliferation and death were measured by MTT and LDH assay respectively. Apoptosis was detected...

2010
Roghayeh Soleimanzadeh Bahareh J. Farahani Mahmood Fathy

The effectiveness of wireless sensor networks (WSNs) depends on the coverage and target detection probability provided by dynamic deployment, which is supported by the several methods. Particle Swarm Optimization (PSO) algorithm is one these methods, however computation time required is a big bottleneck. This paper proposes three dynamic PSO-based deployment algorithms that reduce the computati...

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