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International Computer Music Conference, ICMC 2006

作者： Zad, Damon Daylamani Araabi, Babak N. Lucas, Caru Department of Information Systems and Computing Brunel University United Kingdom Dept. of Electrical and Computer Engineering Control and Intelligent Processing Center of Excellence University of Tehran Iran

Artificial music composition is one of the ever rising problems of computer science. Genetic Algorithm has been one of the most useful means in our hands to solve optimization problems. By use of precise assumptions and adequate fitness function it is possible to change the music composing into an optimization problem. This paper proposes a new genetic algorithm for composing music. Considering entropy of the notes distribution as a factor of fitness function and developing mutation and crossover functions based on harmonic rules and trying to keep the melodies intact during these processes would result in a musical piece pleasant to human ears and interesting for human mind. This algorithm does not have the constraints of the previous algorithms. Restraining mutation and crossover functions with a goal of producing melodies based on acceptable melodies composed by humans, this algorithm is not bound to any genre, instrument or melody. The experimental results of this approach show that it is near to the human composing and the results produced from it are more acceptable than the ones produced by its predecessors.

关键词： Genetic algorithms

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Computational issues of signal analysis in time domain

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WSEAS Transactions on Computers 2006年第12期5卷 2919-2926页

作者： Hlupić, Nikica Basch, Danko Fertalj, Krešimir Department of Applied Computing University of Zagreb Faculty of Electrical Engineering and Computing Unska 3 Zagreb 10000 Croatia Department of Control and Computer Engineering University of Zagreb Faculty of Electrical Engineering and Computing Unska 3 Zagreb 10000 Croatia

This paper elaborates the present stage and predictable direction of future development of Sine Wave Calculator (SWC), a simple method for signal analysis in time domain that provides accuracy comparable to the best classical methods (relative errors about few times 10-6). The main SWC advantages are extreme simplicity, possibility of selection of samples and straightforward calculations, which makes it preferable solution for quick implementation. The main shortage is still unknown mathematical analysis of errors, which are probably unequal for different signal parameters.

关键词： Time domain analysis

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Supervisory control by using active virtual 3D models in-the-loop

Supervisory control by using active virtual 3D models in-the...

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IEEE International Conference on Computer-Aided Design

作者： Tomislav Reichenbach Damjan Miklic Zdenko Kovacic Faculty of Electrical Engineering and Computing Department of Control and Computer Engineering in Automation University of Zagreb Croatia

Virtual 3D models play important role in a today factory layout design, physical modeling, control synthesis, performance analysis, dynamic simulation and visualization of real systems. In this paper, we go one step further and besides visualization, we monitor all measurable states in the real system and use active 3D models in-the-loop for real-time supervisory control. Such concept enables an event detection not possible with conventional sensors, including the ability to predict possible outcomes in the system operation. A virtual environment simulator and the way it can be connected to other simulators (e.g., Matlab/Simulink), is presented. The examples of virtual sensors, and collision free-based trajectory planning for robotic manipulators are demonstrated

关键词： Supervisory control Mathematical model Visualization Production facilities control system synthesis Performance analysis Analytical models Real time systems Event detection Sensor systems

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Initial setting of Takagi-Sugeno zero-order fuzzy controllers by state space-based emulation of “black-box” SISO controllers

Initial setting of Takagi-Sugeno zero-order fuzzy controller...

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IEEE International Conference on Computer-Aided Design

作者： Zdenko Kovacic Damir Dobrina Stjepan Bogdan Faculty of Electrical Engineering and Computing Department of Control and Computer Engineering University of Zagreb Zagreb Croatia

In a large number of applications fuzzy controllers have replaced existing linear controllers and brought new quality of control. The design of fuzzy controllers has a heuristic character and therefore, the setting of fuzzy controller parameters may become a tedious, time consuming job. The paper presents a method for initial setting of fuzzy controllers based on the use of state space trajectories associated with controller inputs. The described state space-based design approach does not depend on a type of emulated controller, so both linear and nonlinear controllers, including a human operator, can be transformed into an adequate fuzzy control function. The initial setting algorithm has been successfully tested by simulations in Matlab.

关键词： Takagi-Sugeno model Fuzzy control Fuzzy sets Emulation Process control Proportional control Pi control PD control Three-term control Intelligent control

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Knowledge-based multi-spectral pixel level fusion for surveillance

Knowledge-based multi-spectral pixel level fusion for survei...

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International Joint Conference on Neural Networks 2006, IJCNN '06

作者： Yunqian, Ma Rojicek, Jiri Beran, Zdenek Kukal, Jaromir Bazakos, Mike IEEE Honeywell Labs. 3660 Technology Drive Minneapolis MN 55418 United States Honeywell Prague Laboratory Pod vodarenskou vezi4 CZ-18208 Prague Czech Republic Department of Computing and Control Engineering Faculty of Chemical Engineering Institute of Chemical Technology Prague

ISBN: (纸本)0780394909

Multi- Spectral Fusion focused on the task of image enhancement by processing raw data collected at various electromagnetic bands via passive sensors. Passive spectral sensors collect information about the scene based on the inherently reflected or emitted energy of the scene and is represented by spectral distributions and intensities. These systems can be designed so that they provide collocated information through common optics or other means (algorithms). This paper addresses the issue of Multi-Spectral Pixel-Level Fusion to enhance the visual quality of the "combined" (fused) image data as compared to that of each single spectral band image data. We propose a Knowledgebased Fusion methodology. We also make the implicit assumption that visually superior image data are also better image data for processing by most types of algorithms © 2006 IEEE.

关键词： Space surveillance

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High-Order Multiple Model Channel and Sequence Estimation

High-Order Multiple Model Channel and Sequence Estimation

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IEEE Nonlinear Statistical Signal Processing Workshop,NSSPW

作者： Harini Kulatunga V. Kadirkamanathan Department of Computing Imperial College London London UK Department of Automatic Control and Systems Engineering University of Sheffield Sheffield UK

A high-order multiple model approach is proposed for linear equalization and detection problem in ISI wireless channels. This paper is based on the high-order interacting multiple model (HIMM) algorithm and gives a Ba... 详细信息

关键词： Intersymbol interference AWGN Signal processing algorithms Equalizers Additive white noise Gaussian noise Educational institutions Bayesian methods Automatic control Digital communication

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Channel Assignment using Chaotic Simulated Annealing Enhanced Hopfield Neural Network

Channel Assignment using Chaotic Simulated Annealing Enhance...

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International Joint Conference on Neural Networks (IJCNN)

作者： A.M. Farahmand M.J. Yazdanpanah Department of Computing Science University of Alberta Canada Electrical and Computer Engineering Department Control and Intelligent Processing Center of Excellence University of Tehran Tehran Iran

Channel assignment problem in cellular communication is a difficult combinatorial optimization problem. There is no exact polynomial-time solution for it and searching the whole solution space is infeasible for large problems. By defining the problem's cost function as the energy function of a chaotic Hopfield neural network, we devise a framework for finding competitive suboptimal or even optimal solutions for combinatorial optimization problem in general, and channel assignment problem in particular. In our architecture, we inject chaotic noise in order to help the network escape from local minima of the energy function while we enforce problem constraints by external inputs of neurons. Experimental results show the superiority of our method to other methods.

关键词： Chaos Simulated annealing Hopfield neural networks Chaotic communication Neurons Interference control engineering computing Process control Intelligent control Polynomials

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An Application of Convolutional Neural Networks for Automatic Inspection

An Application of Convolutional Neural Networks for Automati...

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IEEE Conference on Cybernetics and Intelligent Systems

作者： Jose A. Calderon-martinez Pascual Campoy-Cervera Department of Electrical and Electronics Engineering Instituto Tecnologico de Aguascalientes Aguascalientes Mexico Department of Automatic Control Electrical Engineering and Industrial Computing Universidad Politecnica de Madrid Madrid Spain

Automatic inspection in today's manufacturing is critical to be competitive. In this paper, experimental results from the application of digital filters for defects detection in paper pulp production are shown. These filters have been automatically generated by means of a convolutional neural architecture, that uses a modified back-propagation algorithm. The main subjects discussed are: convolutional top-down spiral architecture, a tool used to automatically generate digital filters, a simple but effective modification to the back-propagation algorithm for this application, and experimental results

关键词： Neural networks Inspection Paper pulp Manufacturing automation Digital filters Multi-layer neural network Production Artificial neural networks Graphics Industrial electronics

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Autotuning Autopilots for Micro-ROVs

Autotuning Autopilots for Micro-ROVs

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Mediterranean Conference on control and Automation (MED)

作者： N. Miskovic Z. Vukic M. Barisic B. Tovornik Faculty of Electrical Engineering and Computing Department of Control and Computer Engineering University of Zagreb Zagreb Croatia Faculty of Electrical Engineering and Computer Science Institute of Automation University of Maribor Maribor Slovenia

Underwater vehicles are highly nonlinear and complex systems, that makes designing autopilots extremely difficult. This paper presents autotuning as a method for tuning parameters of a micro-ROV autopilot. The main benefit of this procedure is that the model of the process does not have to be known. Autotuning is often used for industrial processes but not on marine vessels. This procedure, which is performed in closed-loop, is completely automated and enables the operator to retune an autopilot whenever ROV performance is degraded (due to different operating points, tether influence, currents, etc.). In this article we use already known different autotuning recommendations (primarily designed for type 0 processes) with some modifications which we recommend for micro-ROVs. We also give results of using different types of PID controllers, whose parameters are being tuned. A real life demonstration on a VideoRay Pro II micro-ROV is provided

关键词： Automatic control Underwater vehicles Payloads control systems Remotely operated vehicles Three-term control Nonlinear control systems Employee welfare control engineering computing Nonlinear systems

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Real-time Design Constraints in Implementing Active Vibration control Algorithms

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International Journal of Automation and computing 2006年第3期3卷 252-262页

作者： Mohammed Alamgir Hossain Mohammad Osman Tokhi Department of Computing School of Informatics University of BradfordBradford BD7 1DPUK Department of Automatic Control and Systems Engineering The University of Sheffield Sheffield S1 3JDUK

Although computer architectures incorporate fast processing hardware resources, high performance real-time implementation of a complex control algorithm requires an efficient design and software coding of the algorithm so as to exploit special features of the hardware and avoid associated architecture shortcomings. This paper presents an investigation into the analysis and design mechanisms that will lead to reduction in the execution time in implementing real-time control algorithms. The proposed mechanisms are exemplified by means of one algorithm, which demonstrates their applicability to real-time applications. An active vibration control （AVC） algorithm for a flexible beam system simulated using the finite difference （FD） method is considered to demonstrate the effectiveness of the proposed methods. A comparative performance evaluation of the proposed design mechanisms is presented and discussed through a set of experiments.

关键词： Algorithm analysis and design active vibration control （AVC） flexible beam system real-time control memory management.

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