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Data Mining and Intelligent Systems

This research theme aims to develop various computationally intelligent techniques that will uncover useful knowledge from large amounts of data. Research topics include Bayesian networks, customisation, evolutionary computation, human-computer collaboration, neural networks, outlier detection and analysis, personalisation, pattern recognition, robotics, user modelling, and web navigation patterns.

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.
• H. Dong, Zidong Wang and H. Gao, H fuzzy control for systems with repeated scalar nonlinearities and random packet losses, IEEE Transactions on Fuzzy Systems, accepted for publication.
• 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.
• W Sheng, X Liu and M Fairhurst (2008), “A Niching Memetic Algorithm for Simultaneous Clustering and Feature Selection", IEEE Transactions on Knowledge and Data Engineering, 20:868-879.
• S Chen and X Liu (2008) “An Integrated Approach for Modeling Learning Patterns of Students in Web-Based Instruction: A Cognitive Style Perspective”, ACM Transactions on Computer- Human Interaction, 15(1).
• Z Wang, H Gao, J Cao, and X Liu (2008) “On Delayed Genetic Regulatory Networks with Polytopic Uncertainties: Robust Stability Analysis”, IEEE Transactions on Nanobioscience, 7:154-163.
• K Fraser, Z Wang, Y Li, P Kellam and X Liu (2008), “Can graph-cutting improve microarray gene expression reconstructions?”, Pattern Recognition Letters, 29(16):2129-2136.
• 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.
• E Frias-Martinez, S Chen, R Macredie and X Liu (2007), “Behavior and Perception of Digital Library Users: A Robust Clustering Approach”, User modeling and User-Adapted Interaction, 17:305-337.
• E Frias-Martinez, S Chen, and X Liu (2007) “Automatic Cognitive Style Identification of Digital Library Users for Personalization”, Journal of the American Society for Information Science and Technology, 58, 237-251.
• 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, Y Liu, M Li, and X Liu (2006) “Stability Analysis for Stochastic Cohen-Grossberg Neural Networks with Mixed Time Delays”, IEEE Transactions on Neural Networks, 27:814-820.
• A Tucker, J Crampton, S Swift, "RGFGA: An Efficient Representation and Crossover for Grouping Genetic Algorithms", Evolutionary Computation, 13(4):477-99, 2005.
• E Frias-Martinez, S Chen, and X Liu, "Data Mining Approaches to User Modeling for Adaptive Hypermedia: Survey and Future Directions", IEEE Transactions on Systems, Man and Cybernetics - Part C, 36:734-749 (2006).
• S Counsell, J Crampton, and S Swift, "The Interpretation and Utility of Three Cohesion Metrics for Object-Oriented Design", ACM Transactions on Software-Engineering and Methodology, 15 (2) : 123-149 (2006).
• S Lauria, G Bugman, T Kyriacou, and E Klein, "Vision-Based Urban Navigation Procedures for Verbally Instructed Robots", Robotics and Autonomous Systems, in press.
• Y Liu, Z Wang, and X Liu, "Global Exponential Stability of Generalized Recurrent Neural Networks with Discrete and Distributed Delays", Neural Networks, 19:667-675 (2006).
• W Sheng, S Swift, L Zhang and X Liu, "A Weighted Sum Validity Function for Clustering With a Hybrid Niching Genetic Algorithm", IEEE Transactions on Systems, Man and Cybernetics - Part B, 35:1156-1167, 2005.
• Z Wang, D Ho and X Liu, "State Estimation for Delayed Neural Networks", IEEE Transactions on Neural Networks, 16:279-284, (2005)
• Z Wang, Y Liu and X Liu, "On Global Asymptotic Stability of Neural Networks with Discrete and Distributed Delays", Physics Letters A, 345:299-308, 2005.
• S Chen, and X Liu, "The Contribution of Data Mining to Information Science", Journal of Information Science 30:550-558, (2004).
• S Lauria, G Bugman, T Kyriacou, and E Klein, "Mobile Robot Programming Using Natural Language", Robotics and Autonomous Systems, 38 (3-4), (2002)
• X Liu, G Cheng and J Wu, "Analysing Outliers Cautiously", IEEE Transactions on Knowledge and Data Engineering, 14:432-437, (2002).
• S Lauria, G Bugman, T Kyriacou, J Bos, and E Klein, "Personal Robot Training Via Natural Language Instructions", IEEE Intelligent Systems 16(4):38-46, (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).