Dynamics Signals and Time Series
This research theme is concerned with the analysis and synthesis of dynamical behaviours for a variety of complex systems in signal processing and multivariate time series with promising applications for bioinformatics, robotics and communications. Research topics include, but not limited to, modelling, analysing, filtering, transmitting, estimating, detecting, synthesising and reproducing multivariate dynamics (signals or time series) by integrating the latest techniques from mathematics, statistics, dynamical systems, and computationally intelligent methods.
Selected Publications
- J Liang, Z Wang and X Liu (2009), "State Estimation for Coupled Uncertain Stochastic Networks with Missing Measurements and Time-Varying Delays: The Discrete-Time Case", IEEE Transactions on Neural Networks.
- Y Liu, Zidong Wang, J Liang and X Liu (2009) “Stability and synchronization of discrete-time Markovian jumping neural networks with mixed mode-dependent time-delays”, IEEE Transactions on Neural Networks, accepted for publication.
- Z Wang, Y Liu and X Liu (2009) “State estimation for jumping recurrent neural networks with discrete and distributed delays”, Neural Networks.
- Z Wang, D Ho, Y Liu and X Liu (2009) “Robust H control for a class of nonlinear discrete time-delay stochastic systems with missing measurements”, Automatica, 45:684-691.
- F Yang, Z Wang, G Feng and X. Liu (2009) “Robust filtering with randomly varying sensor delay: the finite-horizon case”, IEEE Transactions on Circuits and Systems I, accepted for publication.
- Y Liu, Z Wang and X. Liu, “Asymptotic stability for neural networks with mixed time-delays: the discrete-time case”, Neural Networks, accepted for publication.
- J Liang, Z Wang and X Liu (2008), "Robust Synchronization of an Array of Coupled Stochastic Discrete-Time Delayed Neural Networks", IEEE Transactions on Neural Networks, 19: 1910-1921.
- Z Wang, J Lam, G Wei, K Fraser and X Liu (2008), “Filtering for Nonlinear Genetic Regulatory Networks with Stochastic Disturbances”, IEEE Transactions on Automatic Control, 53: 2448-2457.
- Y Liu, Z Wang, J Liang and X Liu , “Synchronization and State estimation for Discrete-time Complex Networks with Distributed Delays”, IEEE Transactions on Systems, Man, and Cybernetics - Part B, 38(5):1314-1325.
- J Liang, Z Wang, Y Liu and X Liu (2008), “Global synchronization control of general delayed discrete-time networks with stochastic coupling and disturbances”, IEEE Transactions on Systems, Man, and Cybernetics - Part B, 38:1073-1083.
- Z Wang, Y Liu, and X Liu (2008) “H_infinity Filtering for Uncertain Stochastic Time-Delay Systems with Sector-Bounded Nonlinearities”, Automatica, 44:1268-1277.
- F Yang, Z Wang, G Feng and X Liu (2008), “Robust Filtering with Randomly Varying Sensor Delay: The Finite-Horizon Case”, IEEE Transactions on Circuits and Systems – Part I, in press.
- Y Liu, Z Wang and X Liu, (2008) “Robust Stability of Discrete-Time Stochastic Neural Networks with Time-Varying Delays”, Neurocomputing, 71:823-833.
- Z Wang, F Yang, D Ho, and X Liu (2007) “Robust H-infinity Control for Networked Systems with Random Packet Losses”, IEEE Transactions on Systems, Man and Cybernetics - Part B, 37: 916-924.
- Z Wang, S Lauria, J Fang and X. Liu (2007) “Exponential stability of uncertain stochastic neural networks with mixed time delays”, Chaos, Solitons & Fractals, 32:62-72.
- Y Liu, Z Wang and X Liu (2006) “Global Exponential Stability of Generalized Recurrent Neural Networks with Discrete and Distributed Delays”, Neural Networks, 19:667-675.
- Z Wang, F Yang, D Ho and X Liu (2006) “Robust H-infinity Filtering for Stochastic Time-Delay Systems with Missing Measurements”, IEEE Transactions on Signal Processing, 54: 2579-2587.
- S Swift, J Kok, and X Liu, "Learning Short Multivariate Time Series Models through Evolutionary and Sparse Matrix Computation", Natural Computing, 5:387-426, (2006).
- Y Liu, Z Wang and X Liu, "Global Asymptotic Stability of Generalized Bi-Directional Associative Memory Networks with Discrete and Distributed Delays", Chaos, Solitons and Fractals, 28(3):793-803, (2006).
- F Yang, Z Wang, D Ho and X Liu, "Robust H-2 Filtering for A Class of Systems with Stochastic Nonlinearities", IEEE Transactions on Circuits and Systems - Part II, 53:235-239, 2006.
- A Tucker and X Liu, "A Bayesian Network Approach to Explaining Time Series with Changing Structure", Intelligent Data Analysis, 8:469-480, (2004).
- Z Wang, J Lam, and X Liu, "Exponential Filtering for Uncertain Markovian Jump Time-Delay Systems with Nonlinear Disturbances", IEEE Transactions on Circuits and Systems - Part II; 51:262-268, (2004).
- Z Wang and X Liu, "On Designing H-infinity Filters with Circular Pole and Error Variance Constraints", IEEE Transactions on Circuits and Systems II, 50:139-43, (2003).
- Z Wang, D Ho and X Liu, "Variance-Constrained Filtering for Uncertain Stochastic Systems with Missing Measurements", IEEE Transactions on Automatic Control, 48, 1254-1258, (2003).
- Z Wang, J Lam and X Liu, "Nonlinear Filtering for State Delayed Systems with Markovian Switching", IEEE Transactions on Signal Processing, 51, 2321-2328, (2003).
- Z Wang and H Qiao, "Robust filtering for bilinear uncertain stochastic discrete-time systems", IEEE Transactions on Signal Processing, 50:560-567, (2002).
- Z Wang, J Lam and K J Burnham, "Stability analysis and observer design for neutral delay systems", IEEE Transactions on Automatic Control, 47:478-483. (2002).
- Z Wang and F Yang, "Robust filtering for uncertain linear systems with delayed states and outputs", IEEE Transactions on Circuits and Systems I, 49:125-130, (2002).
- A Tucker, S Swift and X Liu, "Variable Grouping in Multivariate Time Series via Correlation", IEEE Transactions on Systems, Man & Cybernetics: Part B: Cybernetics, 31:235-245, (2001).
- Z Wang, B Huang and K Burnham, "Stochastic reliable control of a class of uncertain time-delay systems with unknown nonlinearities", IEEE Transactions on Circuits and Systems I, 48:646-650, (2001).
- A Tucker, X Liu and A Ogden-Swift, "Evolutionary Learning of Dynamic Probabilistic Models with Large Time Lags", International Journal of Intelligent Systems, 16:621-645, (2001).
- Z Wang and K Burnham, "Robust filtering for a class of stochastic uncertain nonlinear time-delay systems via exponential state estimation", IEEE Transactions on Signal Processing, 49:794-804, (2001).




