Ramasamy Saravanakumar

Dr. Ramasamy Saravanakumar


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

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

Representative Publications

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9 May 2016 in IEEE Transactions on Neural Networks and Learning Systems
Verified
Journal Article
Closed access
RSRamasamy Saravanakumar
Ramasamy Saravanakumar
MAMuhammed Syed Ali
Muhammed Syed Ali
Choon Ki AhnChoon Ki Ahn
Choon Ki Ahn
HKHamid Reza Karimi
Hamid Reza Karimi
PSPeng Shi
Peng Shi
This paper examines the problem of asymptotic stability for Markovian jump generalized neural networks with interval time-varying delays. Markovian jump parameters are modeled as a continuous-time and finite-state Markov chain. By constructing a suitable Lyapunov-Krasovskii functional (LKF) and using the linear matrix inequality (LMI) formulation, new delay-dependent stability conditions are established to ascertain the mean-square asymptotic stability result of the equilibrium point. The reciprocally convex combination technique, Jensen's inequality, and the Wirtinger-based double integral inequality are used to handle single and double integral terms in the time derivative of the LKF. The developed results are represented by the LMI. The effectiveness and advantages of the new design method are explained using five numerical examples.

13 July 2017 in IEEE Transactions on Systems, Man, and Cybernetics: Systems
Verified
Journal Article
Closed access
RSRamasamy Saravanakumar
Ramasamy Saravanakumar
GRGrienggrai Rajchakit
Grienggrai Rajchakit
Choon Ki AhnChoon Ki Ahn
Choon Ki Ahn
Hamid Reza KarimiHamid Reza Karimi
Hamid Reza Karimi
In this paper, we analyze the exponential stability, passivity, and (Q, G, R)-γ-dissipativity of generalized neural networks (GNNs) including mixed time-varying delays in state vectors. Novel exponential stability, passivity, and (Q, G, R)-γ-dissipativity criteria are developed in the form of linear matrix inequalities for continuous-time GNNs by constructing an appropriate Lyapunov-Krasovskii functional (LKF) and applying a new weighted integral inequality for handling integral terms in the time derivative of the established LKF for both single and double integrals. Some special cases are also discussed. The superiority of employing the method presented in this paper over some existing methods is verified by numerical examples.

1 January 2016 in Neurocomputing
Verified
Journal Article
Closed access
MAM. Syed Ali
M. Syed Ali
RSRamasamy Saravanakumar
Ramasamy Saravanakumar
Jinde CaoJinde Cao
Jinde Cao


22 May 2018 in IEEE Transactions on Neural Networks and Learning Systems
Verified
Journal Article
Closed access
RSRamasamy Saravanakumar
Ramasamy Saravanakumar
SSSreten B. Stojanovic
Sreten B. Stojanovic
DRDamnjan D. Radosavljevic
Damnjan D. Radosavljevic
Choon Ki AhnChoon Ki Ahn
Choon Ki Ahn
Hamid Reza KarimiHamid Reza Karimi
Hamid Reza Karimi
In this paper, we study the problem of finite-time stability and passivity criteria for discrete-time neural networks (DNNs) with variable delays. The main objective is how to effectively evaluate the finite-time passivity conditions for NNs. To achieve this, some new weighted summation inequalities are proposed for application to a finite-sum term appearing in the forward difference of a novel Lyapunov-Krasovskii functional, which helps to ensure that the considered delayed DNN is passive. The derived passivity criteria are presented in terms of linear matrix inequalities. A numerical example is given to illustrate the effectiveness of the proposed results.

1 October 2015 in Neurocomputing
Verified
Journal Article
Closed access
MAM. Syed Ali
M. Syed Ali
RSRamasamy Saravanakumar
Ramasamy Saravanakumar
QZQuanxin Zhu
Quanxin Zhu