Chainarong Khunpanuk

Dr. Chainarong Khunpanuk

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 May 2022 in IEEE Access
Verified
Journal Article
Open access
SASunusi Bala Abdullahi
Sunusi Bala Abdullahi
CKChainarong Khunpanuk
Chainarong Khunpanuk
ZBZakariyya Abdullahi Bature
Zakariyya Abdullahi Bature
HCHaruna Chiroma
Haruna Chiroma
Nuttapol PakkaranangNuttapol Pakkaranang
Nuttapol Pakkaranang
AIAbdulkarim Hassan Ibrahim
Abdulkarim Hassan Ibrahim
Addressing crime detection, cyber security and multi-modal gaze estimation in biometric information recognition is challenging. Thus, trained artificial intelligence (AI) algorithms such as Support vector machine (SVM) and adaptive neuro-fuzzy inference system (ANFIS) have been proposed to recognize distinct and discriminant features of biometric information (intrinsic hand features and demographic cues) with good classification accuracy. Unfortunately, due to nonlinearity in distinct and discriminant features of biometric information, accuracy of SVM and ANFIS is reduced. As a result, optimized AI algorithms ((ANFIS) with subtractive clustering (ANFIS-SC) and SVM with error correction output code (SVM-ECOC)) have shown to be effective for biometric information recognition. In this paper, we compare the performance of the ANFIS-SC and SVM-ECOC algorithms in their effectiveness at learning essential characteristics of intrinsic hand features and demographic cues based on Pearson correlation coefficient (PCC) feature selection. Furthermore, the accuracy of these algorithms are presented, and their recognition performances are evaluated by root mean squared error (RMSE), mean absolute percentage error (MAPE), scatter index (SI), mean absolute deviation (MAD), coefficient of determination (R2), Akaike’s Information Criterion (AICc) and Nash-Sutcliffe model efficiency index (NSE). Evaluation results show that both SVM-ECOC and ANFIS-SC algorithms are suitable for accurately recognizing soft biometric information on basis of intrinsic hand measurements and demographic cues. Moreover, comparison results demonstrated that ANFIS-SC algorithms can provide better recognition accuracy, with RMSE, AICc, MAPE, R2 and NSE values of ≤ 3.85, 2.39E+02, 0.18%, ≥ 0.99 and ≥ 99, respectively.

17 February 2022 in Mathematics
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Journal Article
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CKChainarong Khunpanuk
Chainarong Khunpanuk
BPBancha Panyanak
Bancha Panyanak
Nuttapol PakkaranangNuttapol Pakkaranang
Nuttapol Pakkaranang
Two new inertial-type extragradient methods are proposed to find a numerical common solution to the variational inequality problem involving a pseudomonotone and Lipschitz continuous operator, as well as the fixed point problem in real Hilbert spaces with a ρ-demicontractive mapping. These inertial-type iterative methods use self-adaptive step size rules that do not require previous knowledge of the Lipschitz constant. We also show that the proposed methods strongly converge to a solution of the variational inequality and fixed point problems under appropriate standard test conditions. Finally, we present several numerical examples to show the effectiveness and validation of the proposed methods.

1 January 2022 in AIMS Mathematics
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Journal Article
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CKChainarong Khunpanuk
Chainarong Khunpanuk
CGChanchal Garodia
Chanchal Garodia
IUIzhar Uddin
Izhar Uddin
Nuttapol PakkaranangNuttapol Pakkaranang
Nuttapol Pakkaranang
In this article, we present a new modified proximal point algorithm in the framework of CAT(1) spaces which is utilized for solving common fixed point problem and minimization problems. Also, we prove convergence results of the obtained process under some mild conditions. Our results extend and improve several corresponding results of the existing literature.

1 January 2022 in Demonstratio Mathematica
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Journal Article
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CKChainarong Khunpanuk
Chainarong Khunpanuk
Nuttapol PakkaranangNuttapol Pakkaranang
Nuttapol Pakkaranang
Nattawut PholasaNattawut Pholasa
Nattawut Pholasa
The primary objective of this study is to develop two new proximal-type algorithms for solving equilibrium problems in real Hilbert space. Both new algorithms are analogous to the well-known two-step extragradient algorithm for solving the variational inequality problem in Hilbert spaces. The proposed iterative algorithms use a new step size rule based on local bifunction information instead of the line search technique. Two weak convergence theorems for both algorithms are well-established by letting mild conditions. The main results are used to solve the fixed point and variational inequality problems. Finally, we present several computational experiments to demonstrate the efficiency and effectiveness of the proposed algorithms.

1 January 2023 in AIMS Mathematics
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Journal Article
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SASani Aji
Sani Aji
AAAliyu Muhammed Awwal
Aliyu Muhammed Awwal
AMAhmadu Bappah Muhammadu
Ahmadu Bappah Muhammadu
CKChainarong Khunpanuk
Chainarong Khunpanuk
NPNuttapol Pakkaranang
Nuttapol Pakkaranang
BPBancha Panyanak
Bancha Panyanak
Many problems arising from science and engineering are in the form of a system of nonlinear equations. In this work, a new derivative-free inertial-based spectral algorithm for solving the system is proposed. The search direction of the proposed algorithm is defined based on the convex combination of the modified long and short Barzilai and Borwein spectral parameters. Also, an inertial step is introduced into the search direction to enhance its efficiency. The global convergence of the proposed algorithm is described based on the assumption that the mapping under consideration is Lipschitz continuous and monotone. Numerical experiments are performed on some test problems to depict the efficiency of the proposed algorithm in comparison with some existing ones. Subsequently, the proposed algorithm is used on problems arising from robotic motion control.

27 April 2021 in Axioms
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Journal Article
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CKChainarong Khunpanuk
Chainarong Khunpanuk
Nuttapol PakkaranangNuttapol Pakkaranang
Nuttapol Pakkaranang
NWNopparat Wairojjana
Nopparat Wairojjana
Nattawut PholasaNattawut Pholasa
Nattawut Pholasa
The objective of this paper is to introduce an iterative method with the addition of an inertial term to solve equilibrium problems in a real Hilbert space. The proposed iterative scheme is based on the Mann-type iterative scheme and the extragradient method. By imposing certain mild conditions on a bifunction, the corresponding theorem of strong convergence in real Hilbert space is well-established. The proposed method has the advantage of requiring no knowledge of Lipschitz-type constants. The applications of our results to solve particular classes of equilibrium problems is presented. Numerical results are established to validate the proposed method’s efficiency and to compare it to other methods in the literature.