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All Outputs (492)

Simulation of the research process (2008)
Presentation / Conference Contribution
Niazi, M., Hussain, A., Baig, A., & Bhatti, S. (2008). Simulation of the research process. In Proceedings - Winter Simulation Conference (1326-1334). https://doi.org/10.1109/WSC.2008.4736206

This paper presents first steps towards the development of a formal model of the research process. We evaluate the use of simulation as a tool for the evaluation of research strategies in nascent research organizations faced with the absence of signi... Read More about Simulation of the research process.

Autonomous intelligent cruise control using a novel multiple-controller framework incorporating fuzzy-logic-based switching and tuning (2008)
Journal Article
Abdullah, R., Hussain, A., Warwick, K., & Zayed, A. (2008). Autonomous intelligent cruise control using a novel multiple-controller framework incorporating fuzzy-logic-based switching and tuning. Neurocomputing, 71(13-15), 2727-2741. https://doi.org/10.10

This paper presents a novel intelligent multiple-controller framework incorporating a fuzzy-logic-based switching and tuning supervisor along with a generalised learning model (GLM) for an autonomous cruise control application. The proposed methodolo... Read More about Autonomous intelligent cruise control using a novel multiple-controller framework incorporating fuzzy-logic-based switching and tuning.

A novel psychoacoustically motivated multichannel speech enhancement system (2007)
Presentation / Conference Contribution
Hussain, A., Cifani, S., Squartini, S., Piazza, F., & Durrani, T. (2007). A novel psychoacoustically motivated multichannel speech enhancement system. In Verbal and Nonverbal Communication Behaviours COST Action 2102 International Workshop, Vietri sul Ma

The ubiquitous noise reduction / speech enhancement problem has gained an increasing interest in recent years. This is due both to progress made by microphone-array systems and to the successful introduction of perceptual models. In the last decade,... Read More about A novel psychoacoustically motivated multichannel speech enhancement system.

Exponential stabilization of the inertia wheel pendulum using dynamic surface control (2007)
Journal Article
Qaiser, N., Iqbal, N., Hussain, A., & Qaiser, N. (2007). Exponential stabilization of the inertia wheel pendulum using dynamic surface control. Journal of Circuits, Systems, and Computers, 16(1), 81-92. https://doi.org/10.1142/S0218126607003514

This paper considers the stabilization problem of Inertia Wheel Pendulum, a widely studied benchmark nonlinear system. It is a classical example of a flat underactuated mechanical system, for which the design of control law becomes a challenging task... Read More about Exponential stabilization of the inertia wheel pendulum using dynamic surface control.

Nonlinear speech enhancement: An overview (2007)
Book Chapter
Hussain, A., Chetouani, M., Squartini, S., Bastari, A., & Piazza, F. (2007). Nonlinear speech enhancement: An overview. In Progress in Nonlinear Speech Processing (217-248). https://doi.org/10.1007/978-3-540-71505-4_12

This paper deals with the problem of enhancing the quality of speech signals, which has received growing attention in the last few decades. Many different approaches have been proposed in the literature under various configurations and operating hypo... Read More about Nonlinear speech enhancement: An overview.

Using biclustering for automatic attribute selection to enhance global visualization (2007)
Presentation / Conference Contribution
Abdullah, A., & Hussain, A. (2007). Using biclustering for automatic attribute selection to enhance global visualization. In Pixelization Paradigm Visual Information Expert Workshop, VIEW 2006, Paris, France, April 24-25, 2006, Revised Selected Papers (3

Data mining involves useful knowledge discovery using a data matrix consisting of records and attributes or variables. Not all the attributes may be useful in knowledge discovery, as some of them may be redundant, irrelevant, noisy or even opposing.... Read More about Using biclustering for automatic attribute selection to enhance global visualization.

Exponential stabilization of a class of underactuated mechanical systems using dynamic surface control (2007)
Journal Article
Qaiser, N., Iqbal, N., Hussain, A., & Qaiser, N. (2007). Exponential stabilization of a class of underactuated mechanical systems using dynamic surface control. International Journal of Control, Automation and Systems, 5(5), 547-558

This paper proposes a simpler solution to the stabilization problem of a special class of nonlinear underactuated mechanical systems which includes widely studied benchmark systems like Inertia Wheel Pendulum, TORA and Acrobot. Complex internal dynam... Read More about Exponential stabilization of a class of underactuated mechanical systems using dynamic surface control.

Fuzzy logic based switching and tuning supervisor for a multi-variable multiple controller (2007)
Presentation / Conference Contribution
Abdullah, R. A., Hussain, A., & Polycarpou, M. M. (2007). Fuzzy logic based switching and tuning supervisor for a multi-variable multiple controller. In 2007 IEEE International Fuzzy Systems Conference. https://doi.org/10.1109/FUZZY.2007.4295613

This paper presents a novel fuzzy-logic based switching and tuning supervisor for an intelligent multiple-controller framework. The fuzzy logic based supervisor operates at the highest level of the system and makes a switching decision, on the basis... Read More about Fuzzy logic based switching and tuning supervisor for a multi-variable multiple controller.

Dynamic surface control for stabilization of the oscillating eccentric rotor (2007)
Journal Article
Qaiser, N., Hussain, A., Iqbal, N., & Qaiser, N. (2007). Dynamic surface control for stabilization of the oscillating eccentric rotor. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 221(3), 311-

The present paper presents a new solution for the stabilization and disturbance attenuation problems of the oscillating eccentric rotor (OER), an extensively studied non-linear under-actuated mechanical system. Designing control law for such systems... Read More about Dynamic surface control for stabilization of the oscillating eccentric rotor.

A nonlinear PID-based multiple controller incorporating a multilayered neural network learning submodel (2006)
Journal Article
Zayed, A., Hussain, A., & Grimble, M. (2006). A nonlinear PID-based multiple controller incorporating a multilayered neural network learning submodel. Control and Intelligent Systems, 34, 177-184. https://doi.org/10.2316/Journal.201.2006.3.201-1499

A new nonlinear minimum-variance adaptive proportional integral derivative (PID) based multiple controller, incorporating a multi- layered neural network learning submodel, is presented. The unknown non-linear plant is represented by an equivalent st... Read More about A nonlinear PID-based multiple controller incorporating a multilayered neural network learning submodel.

Dissimilarity analysis of signal processing methods for texture classification (2006)
Presentation / Conference Contribution
Qaiser, N., Hussain, M., Hussain, A., Iqbal, N., & Qaiser, N. (2006). Dissimilarity analysis of signal processing methods for texture classification. In 2005 Pakistan Section Multitopic Conference. https://doi.org/10.1109/INMIC.2005.334512

As observed from the literature survey, there is no commonly accepted quantitative definition of visual texture. As a consequence, researchers seeking a quantitative texture measure have been forced to search intuitively for texture features, and the... Read More about Dissimilarity analysis of signal processing methods for texture classification.

Editorial: Nonlinear adaptive PID control - Part II (2006)
Journal Article
Hussain, A., Grimble, M., & Zayed, A. (2006). Editorial: Nonlinear adaptive PID control - Part II. Control and Intelligent Systems, 34(3), 175

The article provides an overview of papers about nonlinear adaptive proportional integral derivative (PID) control, published in the August 2006 issue of "Control and Intelligent Systems." Zayed and colleagues wrote an editorial describing a nonlinea... Read More about Editorial: Nonlinear adaptive PID control - Part II.

A new radial basis function neural network based multi-variable adaptive pole-zero placement controller (2006)
Presentation / Conference Contribution
Abdullah, R., Hussain, A., & Zayed, A. (2006). A new radial basis function neural network based multi-variable adaptive pole-zero placement controller. In 2006 IEEE International Conference on Engineering of Intelligent Systems. https://doi.org/10.1109/I

In this paper a new multi-variable adaptive controller algorithm for non-linear dynamical systems has been derived which employs the radial basis function (RBF) neural network. In the proposed controller, the unknown plant is represented by an equiva... Read More about A new radial basis function neural network based multi-variable adaptive pole-zero placement controller.

Blind equalization of communication channels with equal energy sources using a combined HOS-SOS approach (2006)
Presentation / Conference Contribution
Naveed, A., Qureshi, I., Hussain, A., & Cheema, T. (2006). Blind equalization of communication channels with equal energy sources using a combined HOS-SOS approach. In 2006 IEEE International Conference on Engineering of Intelligent Systems. https://doi.

This paper presents a combined higher order statistics (HOS) and second order statistics (SOS) approach to blind equalization of white as well as colored sources. Remarkable convergence speed has been achieved through an additional term in the cost f... Read More about Blind equalization of communication channels with equal energy sources using a combined HOS-SOS approach.

Heuristics and meta-heuristics for bandwidth minimization of sparse matrices (2006)
Presentation / Conference Contribution
Abdullah, A., & Hussain, A. (2006). Heuristics and meta-heuristics for bandwidth minimization of sparse matrices. In 2006 IEEE International Conference on Engineering of Intelligent Systems. https://doi.org/10.1109/ICEIS.2006.1703188

In this paper a new crossing minimization based method is proposed to solve the well-known matrix bandwidth minimization problem, which is to permute the rows and columns of the matrix so as to bring all the non-zero elements of the matrix to reside... Read More about Heuristics and meta-heuristics for bandwidth minimization of sparse matrices.

Non-linear predictors based on the functionally expanded neural networks for speech feature extraction (2006)
Presentation / Conference Contribution
Chetouani, M., Hussain, A., Gas, B., & Zarader, J. (2006). Non-linear predictors based on the functionally expanded neural networks for speech feature extraction. In 2006 IEEE International Conference on Engineering of Intelligent Systems. https://doi.or

In this paper we focus on the design of the feature extractor stage of the speech recognition system which aims to compute optimal vectors for the next phoneme classification stage. We propose a new non-linear feature extraction method based on the l... Read More about Non-linear predictors based on the functionally expanded neural networks for speech feature extraction.

Stabilization of non-linear inertia wheel pendulum system using a new dynamic surface control based technique (2006)
Presentation / Conference Contribution
Qaiser, N., Iqbal, N., & Hussain, A. (2006). Stabilization of non-linear inertia wheel pendulum system using a new dynamic surface control based technique. In 2006 IEEE International Conference on Engineering of Intelligent Systems. https://doi.org/10.11

This paper considers the stabilization problem of inertia-wheel pendulum (IWP), a widely studied nonlinear mechanical system. The IWP is a classical example of flat under-actuated mechanical systems, for which the design of control laws becomes a cha... Read More about Stabilization of non-linear inertia wheel pendulum system using a new dynamic surface control based technique.

Data mining a new pilot agriculture extension data warehouse (2006)
Journal Article
Abdullah, A., & Hussain, A. (2006). Data mining a new pilot agriculture extension data warehouse. Journal of Research and Practice in Information Technology, 38(3), 229-248

Pakistan is the world’s fifth largest cotton producer. To monitor cotton growth, different government departments and agencies in Pakistan have been recording pest scouting, agriculture and metrological data for decades. Coarse estimates of just the... Read More about Data mining a new pilot agriculture extension data warehouse.