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- Seyedali Mirjalili, Siti Zaiton Mohd Hashim
- 2010 International Conference on Computer and…
- 2010

In this paper, a new hybrid population-based algorithm (PSOGSA) is proposed with the combination of Particle Swarm Optimization (PSO) and Gravitational Search Algorithm (GSA). The main idea is to integrate the ability of exploitation in PSO with the ability of exploration in GSA to synthesize both algorithms' strength. Some benchmark test functions are used… (More)

- SeyedAli Mirjalili, Siti Zaiton Mohd Hashim, Hossein Moradian Sardroudi
- Applied Mathematics and Computation
- 2012

The Gravitational Search Algorithm (GSA) is a novel heuristic optimization method based on the law of gravity and mass interactions. It has been proven that this algorithm has good ability to search for the global optimum, but it suffers from slow searching speed in the last iterations. This work proposes a hybrid of Particle Swarm Optimization (PSO) and… (More)

- Vahid Khatibi Bardsiri, Dayang N. A. Jawawi, Siti Zaiton Mohd Hashim, Elham Khatibi
- Software Quality Journal
- 2012

Development effort is one of the most important metrics that must be estimated in order to design the plan of a project. The uncertainty and complexity of software projects make the process of effort estimation difficult and ambiguous. Analogy-based estimation (ABE) is the most common method in this area because it is quite straightforward and practical,… (More)

- Seyed Reza Shahamiri, Wan M. N. Wan-Kadir, Suhaimi Ibrahim, Siti Zaiton Mohd Hashim
- Information & Software Technology
- 2011

Context: One of the important issues of software testing is to provide an automated test oracle. Test oracles are reliable sources of how the software under test must operate. In particular, they are used to evaluate the actual results that produced by the software. However, in order to generate an automated test oracle, oracle challenges need to be… (More)

Global optimization methods play an important role to solve many real-world problems. However, the implementation of single methods is excessively preventive for high dimensionality and nonlinear problems, especially in term of the accuracy of finding best solutions and convergence speed performance. In recent years, hybrid optimization methods have shown… (More)

- Siti Nurmaini, Siti Zaiton Mohd Hashim, Dayang Norhayati, Abang Jawawi
- 2009

The standard multi layer perceptron neural network (MLPNN) type has various drawbacks, one of which is training requires repeated presentation of training data, which often results in very long learning time. An alternative type of network, almost unique, is the Weightless Neural Network (WNNs) this is also called n-tuple networks or RAM based networks. In… (More)

- Norfadzlan Yusup, Azlan Mohd Zain, Siti Zaiton Mohd Hashim
- Expert Syst. Appl.
- 2012

0957-4174/$ see front matter 2012 Elsevier Ltd. A doi:10.1016/j.eswa.2012.02.109 ⇑ Corresponding author. Tel.: +60 7 5532088; fax: + E-mail addresses: ynorfadzlan@fit.unimas.my (N (A.M. Zain), sitizaiton@utm.my (S.Z.M. Hashim). In highly competitive manufacturing industries nowadays, the manufactures ultimate goals are to produce high quality product with… (More)

This paper presents a new multiobjective evolutionary algorithm applied to a radial basis function (RBF) network design based on mult iobjective particle swarm optimization augmented with local search features. The algorithm is named the memetic multiobjective particle swarm optimization RBF network (MPSON) because it integrates the accuracy and structure… (More)

As security threats change and advance in a drastic way, most of the organizations implement multiple Network Intrusion Detection Systems (NIDSs) to optimize detection and to provide comprehensive view of intrusion activities. But NIDSs trigger a massive amount of alerts even for a day and overwhelmed security experts. Thus, automated and intelligent… (More)

- Ismail Ahmed A. Al-Hadi, Siti Zaiton Mohd Hashim, Siti Mariyam Hj. Shamsuddin
- 2011 11th International Conference on Hybrid…
- 2011

Backpropagation algorithm is widely used to solve many real-world problems, using the concept of Multilayer Perceptron. However, main disadvantages of Backpropagation are the convergence rate of it being relatively slow, and it is often trapped in the local minima. To solve this problem, it is found in the literatures, an evolutionary algorithm such as… (More)