Ismail Mohd

Universiti Putra Malaysia

Salt-and-pepper noiseAlgorithmCombinatoricsImage (mathematics)Mathematical optimizationMathematical analysisMatrix (mathematics)Optimization problemMinificationArtificial intelligencePattern recognitionSingular value decompositionApplied mathematicsUnconstrained optimizationMathematicsComputer scienceDigital imageFunction (mathematics)Convergence (routing)Newton's method

29Publications

4H-index

34Citations

Publications 29

Newest

#1Achmad Abdurrazzaq (UniMAP: Universiti Malaysia Perlis)H-Index: 3

#2Ahmad Kadri Junoh (UniMAP: Universiti Malaysia Perlis)H-Index: 7

Last. Ismail Mohd (UPM: Universiti Putra Malaysia)H-Index: 4

view all 4 authors...

Segmentation technique is a commonly used method to detect white blood cells. The segmentation technique aims to separate the blood image into several parts based on the similarity of features in the image. Therefore, the detection results do not completely contain white blood cells but also contain other parts with similar features to white blood cells. This study proposes a new detection technique that directly considers the features of white blood cells using singular value decomposition appr...

#1Achmad Abdurrazzaq (UniMAP: Universiti Malaysia Perlis)H-Index: 3

#2Ismail Mohd (UPM: Universiti Putra Malaysia)H-Index: 4

Last. Zainab Yahya (UniMAP: Universiti Malaysia Perlis)H-Index: 4

view all 4 authors...

The concept of the tropical algebra was first introduced to solve problems in mathematical economy such as optimization and approximation problems. In this paper, the concept of tropical algebra is used to build an image filtering algorithm. By using this concept, the lowest and highest pixel values are considered in determining the new pixel value. In addition, adaptive window will also be implemented to help the filtering process become more effective at high density noise. Peak Signal-to-Nois...

#1Achmad Abdurrazzaq (UniMAP: Universiti Malaysia Perlis)H-Index: 3

#2Ahmad Kadri Junoh (UniMAP: Universiti Malaysia Perlis)H-Index: 7

Last. Ismail Mohd (UPM: Universiti Putra Malaysia)H-Index: 4

view all 5 authors...

An image through the digitization process is referred to as a digital image. The quality of the digital image may be degenerating due to interferences on the acquisition, transmission, extraction, etc. This attracted the attention of many researchers to study the causes of damage to the information in the image. In addition to finding cause of image damage, the researchers also looking for ways to overcome this problem. There are many filtering techniques that have been introduced to deal the da...

#1Achmad AbdurrazzaqH-Index: 3

#2Ismail Mohd (UPM: Universiti Putra Malaysia)H-Index: 4

Last. Zainab YahyaH-Index: 4

view all 4 authors...

Noise is the information damage that may occur in the image due to the changes in information during the transmission process. In order to overcome these problems, it is necessary to do filtering process on the image. Until now many filtering algorithms have been proposed to remove noise. Most existing methods only work for low level noise. In this study, the authors proposed an efficient and easy-to-understand filtering algorithm using the concept of tropical algebra and singular value decompos...

A globally convergent interval method for computing and bounding multiple roots of a once continuously differentiable function

#1Ismail MohdH-Index: 4

#2Yosza DasrilH-Index: 5

This paper showed how Newton’s method can be extended to the several interval Newton methods for locating and bounding multiple and simple roots of a once continuously differentiable function in a given interval. Most of the discussion focused on the theoretical aspect and it had been supported by some numerical evidence. This paper proved that the proposed methods never fail to converge.This paper showed how Newton’s method can be extended to the several interval Newton methods for locating and...

#1Achmad AbdurrazzaqH-Index: 3

#2Ismail MohdH-Index: 4

Last. Zainab YahyaH-Index: 4

view all 4 authors...

The unknown information contained in an image that causes the change of information in the image is called noise. In this paper, we propose a new method for removing salt and pepper noise by using singular value decomposition and the concept of tropical algebra operations. To determine the performance of the proposed method, 20 test images are used as samples. Then three different image quality assessments are used: peak signal-to-noise ratio (PSNR), structural similarity (SSIM), and image enhan...

#1Yosza Dasril (UTeM: Universiti Teknikal Malaysia Melaka)H-Index: 5

#2Zahriladha Zakaria (UTeM: Universiti Teknikal Malaysia Melaka)H-Index: 14

Last. Ismail Mohd (UPM: Universiti Putra Malaysia)H-Index: 4

view all 3 authors...

In this paper, we propose a computational procedure to find the optimal solution of quadratic programming problems by using fuzzy -cuts and constraint exploration approach. We solve the problems in the original form without using any additional information such as Lagrange’s multiplier, slack, surplus and artificial variable. In order to find the optimal solution, we divide the calculation in two stages. In the first stage, we determine the unconstrained minimization of the quadratic programming...

#1Achmad AbdurrazzaqH-Index: 3

#2Zainab YahyaH-Index: 4

Last. Ahmad Kadri JunohH-Index: 7

view all 4 authors...

Tropical algebra is an algebraic structure consist of real number and two binary operations i.e maximum or minimum and addition. Matrix with the entries are element of tropical algebra is called tropical matrix. The operations on tropical matrix have the same pattern as the classical matrix, but the operations for the entries of the matrix are tropical algebra operations (maximum or minimum and addition). The terms eigenvalues and eigenvectors of the tropical matrix are slightly different from t...

Solving Unconstrained Global Optimization Problem Using Parameter Free Filled Function in Cooperation with Jameson Gradient Based Method

#1Herlina Napitupulu (UMT: Universiti Malaysia Terengganu)

#2Ismail MohdH-Index: 4

Last. Sudradjat Supian (UNPAD: Padjadjaran University)H-Index: 6

view all 5 authors...

Global optimization problem still becomes a challenges due to the problem on locating the global optimum of multimodal function. How to reach the better minimizer from the current minimizer and how to decide that the obtained minimizer is the desired one are both major challenges on solving global optimization problem. Filled function method is one of the recent considered deterministic easy applied methods which concerned to the mentioned problems. The basic concept of filled function method is...

#1Ridwan PandiyaH-Index: 1

#2Ismail Mohd (UPM: Universiti Putra Malaysia)H-Index: 4

For long periods of time, mathematics researchers struggled in obtaining the appropriate starting point when implementing root finding methods, and one of the most famous and applicable is Newton’s method. This iterative method produces sequence that converges to a desired solution with the assumption that the starting point is close enough to a solution. The word “close enough” indicates that we actually do not have any idea how close the initial point needed so that this point can bring into a...

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