Vasilios N. Katsikis

68 papers Journal 68

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A novel stock investment strategy based on distributed k-WTA dynamic neural network. Neural Networks Xinwei Cao, Yiguo Yang, Shuai Li, Vasilios N. Katsikis
2026	J	`jnl`	An innovative neutrosophic logic adaptive high-order zeroing neural network for solving linear matrix equations: Applications to acoustic source tracking. J. Comput. Appl. Math. Houssem Jerbi, Sondess Ben Aoun, Rabeh Abbassi, Mourad Kchaou, Theodore E. Simos, Spyridon D. Mourtas, Shuai Li, Xinwei Cao, Vasilios N. Katsikis
2025	J	`jnl`	A Zeroing Neural Network Approach for Calculating Time-Varying G-Outer Inverse of Arbitrary Matrix. IEEE Trans. Neural Networks Learn. Syst. Predrag S. Stanimirovic, Spyridon D. Mourtas, Dijana Mosic, Vasilios N. Katsikis, Xinwei Cao, Shuai Li
2025	J	`jnl`	Artificial Neural Dynamics for Portfolio Allocation: An Optimization Perspective. IEEE Trans. Syst. Man Cybern. Syst. Xinwei Cao, Yiguo Yang, Shuai Li, Predrag S. Stanimirovic, Vasilios N. Katsikis
2025	J	`jnl`	Solving Lur'e equations through zeroing neural networks. Inf. Sci. Yu He, Xiaojuan Wang, Yafei Tie, Huanqi Yang, Theodore E. Simos, Spyridon D. Mourtas, Vasilios N. Katsikis
2025	J	`jnl`	Survey of Neurodynamic Methods for Control and Computation in Multi-Agent Systems. Symmetry Vasilios N. Katsikis, Bolin Liao, Cheng Hua
2025	J	`jnl`	k-Winner-Take-All Competition Based on Novel Dynamic Neural Networks. IEEE Trans. Syst. Man Cybern. Syst. Xinwei Cao, Yiguo Yang, Shuai Li, Vasilios N. Katsikis
2024	J	`jnl`	Improved zeroing neural models based on two novel activation functions with exponential behavior. Theor. Comput. Sci. Dimitrios Gerontitis, Changxin Mo, Predrag S. Stanimirovic, Vasilios N. Katsikis
2024	J	`jnl`	Neural Networks for Portfolio Analysis in High-Frequency Trading. IEEE Trans. Neural Networks Learn. Syst. Xinwei Cao, Chen Peng, Yuhua Zheng, Shuai Li, Tran Thu Ha, Victor P. Shutyaev, Vasilios N. Katsikis, Predrag S. Stanimirovic
2024	J	`jnl`	Zeroing neural network approaches for computing time-varying minimal rank outer inverse. Appl. Math. Comput. Predrag S. Stanimirovic, Spyridon D. Mourtas, Dijana Mosic, Vasilios N. Katsikis, Xinwei Cao, Shuai Li
2023	J	`jnl`	A novel extended Li zeroing neural network for matrix inversion. Neural Comput. Appl. Dimitrios Gerontitis, Changxin Mo, Predrag S. Stanimirovic, Panagiotis Tzekis, Vasilios N. Katsikis
2023	J	`jnl`	A novel recurrent neural network based online portfolio analysis for high frequency trading. Expert Syst. Appl. Xinwei Cao, Adam Francis, Xujin Pu, Zenan Zhang, Vasilios N. Katsikis, Predrag S. Stanimirovic, Ivona Brajevic, Shuai Li
2023	J	`jnl`	An efficient zeroing neural network for solving time-varying nonlinear equations. Neural Comput. Appl. Ratikanta Behera, Dimitrios Gerontitis, Predrag S. Stanimirovic, Vasilios N. Katsikis, Yang Shi, Xinwei Cao
2023	J	`jnl`	Exact expressions for the Drazin inverse of anti-triangular matrices. J. Comput. Appl. Math. Daochang Zhang, Yue Zhao, Dijana Mosic, Vasilios N. Katsikis
2023	J	`jnl`	Improvement of Unconstrained Optimization Methods Based on Symmetry Involved in Neutrosophy. Symmetry Predrag S. Stanimirovic, Branislav Ivanov, Dragisa Stanujkic, Vasilios N. Katsikis, Spyridon D. Mourtas, Lev A. Kazakovtsev, Seyyed Ahmad Edalatpanah
2023	J	`jnl`	Solving Time-Varying Nonsymmetric Algebraic Riccati Equations With Zeroing Neural Dynamics. IEEE Trans. Syst. Man Cybern. Syst. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic
2023	J	`jnl`	Stabilization of Stochastic Exchange Rate Dynamics Under Central Bank Intervention Using Neuronets. Int. J. Inf. Technol. Decis. Mak. Spyridon D. Mourtas, Vasilios N. Katsikis, Emmanouil Drakonakis, Stelios Kotsios
2023	J	`jnl`	Time-varying minimum-cost portfolio insurance problem via an adaptive fuzzy-power LVI-PDNN. Appl. Math. Comput. Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Shuai Li, Xinwei Cao
2023	J	`jnl`	Zeroing Neural Network Based on Neutrosophic Logic for Calculating Minimal-Norm Least-Squares Solutions to Time-Varying Linear Systems. Neural Process. Lett. Vasilios N. Katsikis, Predrag S. Stanimirovic, Spyridon D. Mourtas, Lin Xiao, Dragisa Stanujkic, Darjan Karabasevic
2022	J	`jnl`	A Single Valued Neutrosophic Extension of the Simple WISP Method. Informatica Dragisa Stanujkic, Darjan Karabasevic, Gabrijela Popovic, Florentin Smarandache, Predrag S. Stanimirovic, Muzafer Saracevic, Vasilios N. Katsikis
2022	J	`jnl`	A fuzzy WASD neuronet with application in breast cancer prediction. Neural Comput. Appl. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas
2022	J	`jnl`	A higher-order zeroing neural network for pseudoinversion of an arbitrary time-varying matrix with applications to mobile object localization. Inf. Sci. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Dimitrios Gerontitis
2022	J	`jnl`	A multi-input with multi-function activated weights and structure determination neuronet for classification problems and applications in firm fraud and loan approval. Appl. Soft Comput. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas
2022	J	`jnl`	Exploiting the Black-Litterman framework through error-correction neural networks. Neurocomputing Spyridon D. Mourtas, Vasilios N. Katsikis
2022	J	`jnl`	Finite-time convergent zeroing neural network for solving time-varying algebraic Riccati equations. J. Frankl. Inst. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic
2022	J	`jnl`	Fraud detection in publicly traded U.S firms using Beetle Antennae Search: A machine learning approach. Expert Syst. Appl. Ameer Tamoor Khan, Xinwei Cao, Shuai Li, Vasilios N. Katsikis, Ivona Brajevic, Predrag S. Stanimirovic
2022	J	`jnl`	Multi-input bio-inspired weights and structure determination neuronet with applications in European Central Bank publications. Math. Comput. Simul. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas
2022	J	`jnl`	Non-linear Activated Beetle Antennae Search: A novel technique for non-convex tax-aware portfolio optimization problem. Expert Syst. Appl. Ameer Tamoor Khan, Xinwei Cao, Ivona Brajevic, Predrag S. Stanimirovic, Vasilios N. Katsikis, Shuai Li
2022	J	`jnl`	Properties of the CMP inverse and its computation. Comput. Appl. Math. Dijana Mosic, Predrag S. Stanimirovic, Vasilios N. Katsikis
2022	J	`jnl`	Solving Complex-Valued Time-Varying Linear Matrix Equations via QR Decomposition With Applications to Robotic Motion Tracking and on Angle-of-Arrival Localization. IEEE Trans. Neural Networks Learn. Syst. Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Yunong Zhang
2022	J	`jnl`	Time-varying mean-variance portfolio selection problem solving via LVI-PDNN. Comput. Oper. Res. Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Shuai Li, Xinwei Cao
2022	J	`jnl`	Unique non-negative definite solution of the time-varying algebraic Riccati equations with applications to stabilization of LTV systems. Math. Comput. Simul. Theodore E. Simos, Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic
2022	J	`jnl`	Zeroing Neural Network With Fuzzy Parameter for Computing Pseudoinverse of Arbitrary Matrix. IEEE Trans. Fuzzy Syst. Vasilios N. Katsikis, Predrag S. Stanimirovic, Spyridon D. Mourtas, Lin Xiao, Darjan Karabasevic, Dragisa Stanujkic
2021	J	`jnl`	A New Varying-Parameter Design Formula for Solving Time-Varying Problems. Neural Process. Lett. Predrag S. Stanimirovic, Vasilios N. Katsikis, Dimitrios Gerontitis
2021	J	`jnl`	An Innovative Grey Approach for Group Multi-Criteria Decision Analysis Based on the Median of Ratings by Using Python. Axioms Dragisa Stanujkic, Darjan Karabasevic, Gabrijela Popovic, Predrag S. Stanimirovic, Florentin Smarandache, Muzafer Saracevic, Alptekin Ulutas, Vasilios N. Katsikis
2021	J	`jnl`	Comparative Analysis of the Simple WISP and Some Prominent MCDM Methods: A Python Approach. Axioms Dragisa Stanujkic, Darjan Karabasevic, Gabrijela Popovic, Edmundas Kazimieras Zavadskas, Muzafer Saracevic, Predrag S. Stanimirovic, Alptekin Ulutas, Vasilios N. Katsikis, Ieva Meidute-Kavaliauskiene
2021	J	`jnl`	Continuous-Time Varying Complex QR Decomposition via Zeroing Neural Dynamics. Neural Process. Lett. Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Yunong Zhang
2021	J	`jnl`	One-sided weighted outer inverses of tensors. J. Comput. Appl. Math. Dijana Mosic, Predrag S. Stanimirovic, Jajati Keshari Sahoo, Ratikanta Behera, Vasilios N. Katsikis
2021	J	`jnl`	Properties and computation of continuous-time solutions to linear systems. Appl. Math. Comput. Predrag S. Stanimirovic, Vasilios N. Katsikis, Long Jin, Dijana Mosic
2021	J	`jnl`	Quantum beetle antennae search: a novel technique for the constrained portfolio optimization problem. Sci. China Inf. Sci. Ameer Tamoor Khan, Xinwei Cao, Shuai Li, Bin Hu, Vasilios N. Katsikis
2021	J	`jnl`	Real-domain QR decomposition models employing zeroing neural network and time-discretization formulas for time-varying matrices. Neurocomputing Zhenyu Li, Yunong Zhang, Liangjie Ming, Jinjin Guo, Vasilios N. Katsikis
2021	J	`jnl`	Time-Varying Mean-Variance Portfolio Selection under Transaction Costs and Cardinality Constraint Problem via Beetle Antennae Search Algorithm (BAS). Oper. Res. Forum Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Shuai Li, Xinwei Cao
2021	J	`jnl`	Time-varying Black-Litterman portfolio optimization using a bio-inspired approach and neuronets. Appl. Soft Comput. Theodore E. Simos, Spyridon D. Mourtas, Vasilios N. Katsikis
2021	J	`jnl`	Weighted composite outer inverses. Appl. Math. Comput. Dijana Mosic, Predrag S. Stanimirovic, Vasilios N. Katsikis
2020	J	`jnl`	BAS-ADAM: an ADAM based approach to improve the performance of beetle antennae search optimizer. IEEE CAA J. Autom. Sinica Ameer Hamza Khan, Xinwei Cao, Shuai Li, Vasilios N. Katsikis, Liefa Liao
2020	J	`jnl`	Complex Varying-Parameter Zhang Neural Networks for Computing Core and Core-EP Inverse. Neural Process. Lett. Mengmeng Zhou, Jianlong Chen, Predrag S. Stanimirovic, Vasilios N. Katsikis, Haifeng Ma
2020	J	`jnl`	Computation of outer inverses of tensors using the QR decomposition. Comput. Appl. Math. Jajati Keshari Sahoo, Ratikanta Behera, Predrag S. Stanimirovic, Vasilios N. Katsikis
2020	J	`jnl`	Core and core-EP inverses of tensors. Comput. Appl. Math. Jajati Keshari Sahoo, Ratikanta Behera, Predrag S. Stanimirovic, Vasilios N. Katsikis, Haifeng Ma
2020	J	`jnl`	Higher-Order ZNN Dynamics. Neural Process. Lett. Predrag S. Stanimirovic, Vasilios N. Katsikis, Shuai Li
2020	J	`jnl`	Optimal Portfolio Management for Engineering Problems Using Nonconvex Cardinality Constraint: A Computing Perspective. IEEE Access Ameer Hamza Khan, Xinwei Cao, Vasilios N. Katsikis, Predrag S. Stanimirovic, Ivona Brajevic, Shuai Li, Seifedine Nimer Kadry, Yunyoung Nam
2020	J	`jnl`	Solvability of some constrained matrix approximation problems using core-EP inverses. Comput. Appl. Math. Dijana Mosic, Predrag S. Stanimirovic, Vasilios N. Katsikis
2020	J	`jnl`	Time-varying minimum-cost portfolio insurance under transaction costs problem via Beetle Antennae Search Algorithm (BAS). Appl. Math. Comput. Vasilios N. Katsikis, Spyridon D. Mourtas, Predrag S. Stanimirovic, Shuai Li, Xinwei Cao
2020	J	`jnl`	Varying-parameter Zhang neural network for approximating some expressions involving outer inverses. Optim. Methods Softw. Predrag S. Stanimirovic, Vasilios N. Katsikis, Zhijun Zhang, Shuai Li, Jianlong Chen, Mengmeng Zhou
2019	J	`jnl`	A heuristic process on the existence of positive bases with applications to minimum-cost portfolio insurance in Appl. Math. Comput. Vasilios N. Katsikis, Spyridon D. Mourtas
2019	J	`jnl`	Integration enhanced and noise tolerant ZNN for computing various expressions involving outer inverses. Neurocomputing Predrag S. Stanimirovic, Vasilios N. Katsikis, Shuai Li
2019	J	`jnl`	Inversion and pseudoinversion of block arrowhead matrices. Appl. Math. Comput. Predrag S. Stanimirovic, Vasilios N. Katsikis, Dejan Kolundzija
2019	J	`jnl`	Perturbation theory for Moore-Penrose inverse of tensor via Einstein product. Comput. Appl. Math. Haifeng Ma, Na Li, Predrag S. Stanimirovic, Vasilios N. Katsikis
2018	J	`jnl`	Hybrid GNN-ZNN models for solving linear matrix equations. Neurocomputing Predrag S. Stanimirovic, Vasilios N. Katsikis, Shuai Li
2018	J	`jnl`	Modified discrete iterations for computing the inverse and pseudoinverse of the time-varying matrix. Neurocomputing Marko D. Petkovic, Predrag S. Stanimirovic, Vasilios N. Katsikis
2016	J	`jnl`	Computing {2, 4} and {2, 3}-inverses by using the Sherman-Morrison formula. Appl. Math. Comput. Predrag S. Stanimirovic, Vasilios N. Katsikis, Dimitrios Pappas
2014	J	`jnl`	Bounds for variable degree rational L Comput. Phys. Commun. Charalampos Tsitouras, Vasilios N. Katsikis
2012	J	`jnl`	Computation of vector sublattices and minimal lattice-subspaces of R Appl. Math. Comput. Vasilios N. Katsikis, Ioannis A. Polyrakis
2012	J	`jnl`	Full-rank representations of outer inverses based on the QR decomposition. Appl. Math. Comput. Predrag S. Stanimirovic, Dimitrios Pappas, Vasilios N. Katsikis, Ivan P. Stanimirovic
2011	J	`jnl`	An improved method for the computation of the Moore-Penrose inverse matrix. Appl. Math. Comput. Vasilios N. Katsikis, Dimitrios Pappas, Athanassios Petralias
2011	J	`jnl`	Computational methods for option replication. Int. J. Comput. Math. Vasilios N. Katsikis
2009	J	`jnl`	A Matlab-based rapid method for computing lattice-subspaces and vector sublattices of R Appl. Math. Comput. Vasilios N. Katsikis
2008	J	`jnl`	Computational methods in lattice-subspaces of C[a, b] with applications in portfolio insurance. Appl. Math. Comput. Vasilios N. Katsikis
2007	J	`jnl`	Computational methods in portfolio insurance. Appl. Math. Comput. Vasilios N. Katsikis