نتایج جستجو برای: gravitational force algorithm

تعداد نتایج: 968049  

Journal: :journal of industrial strategic management 2014
a norouzi, a tolouei ashlaghi,

scheduling is to determine the priorities or arrange the activities to meet the needs, limitations and certain goals. because the time is always a limited resource, all activities should be scheduled to use optimally and certainly the resource. gravitational force algorithm, like other evolutionary algorithms, is inspired by nature. the effect of the gravity on the objects reciprocally and to a...

this article proposes a new algorithm for finding a good approximate set of non-dominated solutions for solving generalized traveling salesman problem. Random gravitational emulation search algorithm (RGES (is presented for solving traveling salesman problem. The algorithm based on random search concepts, and uses two parameters, speed and force of gravity in physics. The proposed algorithm is ...

ده‌باشیان, مریم , ظهیری , سیدحمید,

Image compression is one of the important research fields in image processing. Up to now, different methods are presented for image compression. Neural network is one of these methods that has represented its good performance in many applications. The usual method in training of neural networks is error back propagation method that its drawbacks are late convergence and stopping in points of lo...

Journal: :journal of advances in computer research 0
touraj mohammadpour department of computer engineering, ayatollah amoli branch, islamic azad university, amol, iran mehdi yadollahi department of computer engineering, ayatollah amoli branch, islamic azad university, amol, iran amir massoud bidgoli assistant professor, b.sc., m.sc., ph.d. (manchester university), mieee, tehran north branch, islamic azad university, tehran, iran habib esmaeelzadeh rostam department of computer engineering, ghaemshahr branch, islamic azad university, ghaemshahr, iran

multiple traveling salesman problem (mtsp) is one of the most popular operation research problem and is known as combinatorial optimization problems. mtsp is an extension version of the famous and widely used problem named traveling salesman problem (tsp). because of its benefices in various domains, many researchers have tried to solve that, and many methods have proposed so far. mtsp is a np-...

2010
P S Bishnu

We propose a new gravitational based hierarchical clustering algorithm using kdtree. kdtree generates densely populated packets and finds the clusters using gravitational force between the packets. Gravitational based hierarchical clustering results are of high quality and robustness. Our method is effective as well as robust. Our proposed algorithm is tested on synthetic dataset and results ar...

Gravitational search algorithm (GSA) is one of the newest swarm based optimization algorithms, which has been inspired by the Newtonian laws of gravity and motion. GSA has empirically shown to be an efficient and robust stochastic search algorithm. Since introducing GSA a convergence analysis of this algorithm has not yet been developed. This paper introduces the first attempt to a formal conve...

Gravitational search algorithm (GSA) is one of the newest swarm based optimization algorithms, which has been inspired by the Newtonian laws of gravity and motion. GSA has empirically shown to be an efficient and robust stochastic search algorithm. Since introducing GSA a convergence analysis of this algorithm has not yet been developed. This paper introduces the first attempt to a formal conve...

Journal: :journal of advances in computer research 0

gravitational search algorithm (gsa) is one of the newest swarm based optimization algorithms, which has been inspired by the newtonian laws of gravity and motion. gsa has empirically shown to be an efficient and robust stochastic search algorithm. since introducing gsa a convergence analysis of this algorithm has not yet been developed. this paper introduces the first attempt to a formal conve...

Journal: :Algorithms 2017
Danilo Pelusi Raffaele Mascella Luca G. Tallini

The choice of the best optimization algorithm is a hard issue, and it sometime depends on specific problem. The Gravitational Search Algorithm (GSA) is a search algorithm based on the law of gravity, which states that each particle attracts every other particle with a force called gravitational force. Some revised versions of GSA have been proposed by using intelligent techniques. This work pro...

The main purpose of this research is portfolio optimization in Tehran securities exchange using the black hole algorithm and the Gravitational Research algorithm. We also propose an algorithm named Hybrid Algorithm which combines the two algorithms above to cover the weaknesses of these two algorithms. Finally we compare the results with the Markowitz model and choose the optimal algorithm.<br ...

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