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A novel approach to automatic music composing: Using genetic algorithm

A novel approach to automatic music composing: Using genetic...

引用

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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Approximate dynamic programming based on expansive projections

Approximate dynamic programming based on expansive projectio...

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45th IEEE Conference on Decision and control 2006, CDC

作者： Arruda, Edilson F. Do Val, João B. R. Center for Systems and Control National Laboratory for Scientific Computation - LNCC Av. Getulio Vargas 333 Petrópolis RJ 25651-075 Brazil School of Electrical and Computer Engineering State University of Campinas - UNICAMP Caixa Postal 6101 Campinas SP 13083-852 Brazil

ISBN: (纸本)1424401712

We present a general method to obtain convergent approximate value iteration algorithms with function approximation. The result is applicable to any arbitrary approximation architecture and generalizes existing results in the literature derived for particular approximation schemes. Additionally, we show how to obtain a convergent approximate mapping whose fixed point is the projection in the approximation space of a fixed point of the exact dynamic programming mapping with regards to a suitable subset norm. This result relies on evaluating the difference between successive iterates in the selected subset norm, which provides convergent procedures for any arbitrary approximation architecture. ©2006 IEEE.

关键词： Dynamic programming

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Sagnac quantum key distribution using novel polarization-insensitive phase modulators based on frequency shift

Sagnac quantum key distribution using novel polarization-ins...

引用

2006 LEOS Summer Topical Meetings

作者： Huang, Lei-Lei Qi, Bing Mong, Roger Qian, Li Lo, Hoi-Kwong Dept. of Electrical and Computer Engineering Center for Quantum Information and Quantum Control University of Toronto Toronto M5S 3G4 Canada

We demonstrate a stable Sagnac quantum key distribution implementing BB84 phase-encoding protocol based on acousto-optic frequency shifters. The quantum bit error rate remains 4-6.5% for at least one hour without reca... 详细信息

ISBN: (纸本)1424400902

关键词： Quantum cryptography

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Multiplexing Analysis for Dynamic Spectrum Access

Multiplexing Analysis for Dynamic Spectrum Access

引用

MILCOM, Military Communications Conference

作者： S. Keshavamurthy K. Chandra Center for Advanced Computation and Telecommunications Department of Electrical and Computer Engineering University of Massachusetts Lowell Lowell MA USA

The problem of wireless spectrum sharing is investigated using a multi-server queueing system that models a group of channels and a multiplexed arrival process formed by a primary and secondary group of users. Motivated by under-utilized capacity in RF spectrum owned by the primary group, this work examines the impact of secondary user access patterns on blocking probabilities and achievable improvement in spectrum utilization with statistical multiplexing. The analytical framework presented allows estimation of the blocking for any renewal process characterization of secondary access times. In this work, Gamma distributed inter-access times are chosen to examine the impact of their index of dispersion (IDI) on the excess blocking probabilities of the Poisson distributed primary group. It is shown that by reducing the IDI value to be below unity, one can increase the secondary system utilization in the shared spectrum with minimal impact on the primary system. Combined with an increase in the number of excess channels available for secondary use, a feasible spectrum sharing paradigm can be proposed by shaping the access patterns of secondary systems

关键词： Radio frequency Cognitive radio Availability Probability FCC Physical layer Access protocols Frequency estimation Telecommunication computing Queueing analysis

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A New Nonstationary Gaussian Noise Model for Indoor Wireless Channels

A New Nonstationary Gaussian Noise Model for Indoor Wireless...

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MILCOM, Military Communications Conference

作者： S. Salahuddin C. Thompson K. Chandra Center for Advanced Computation and Telecommunications Department of Electrical and Computer Engineering University of Massachusetts Lowell Lowell MA USA

In this paper we examine a non-stationary statistical model of the broadband response of an indoor wireless channel. The channel impulse response is comprised of a line-of-sight component and multipath components modeled by Gaussian noise weighted by exponentially decaying function of time. The aforementioned model is applied to evaluate the variability in the energy across the spectrum at the receiver. The model exhibits temporal non-stationarity in its variance and favorably captures the variability of the spectral amplitude observed in numerical simulations. It is shown that the standard deviation of the logarithm of normalized power spectral amplitude tends to 5.54 dB as signal to noise ratio approaches zero

关键词： Gaussian noise Optical transmitters Signal to noise ratio computer vision Telecommunication computing Numerical simulation Lattices Sampling methods Power measurement Geometrical optics

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A toolbox for brain emotional learning based intelligent controller

A toolbox for brain emotional learning based intelligent con...

引用

IEEE International Conference on engineering of Intelligent Systems, ICEIS 2006

作者： Mehrabian, Ali Reza Lucas, Caro Control and Intelligent Processing Center of Excellence Department of Mechanical Engineering University of Tehran P.O.Box: 14875 347 Tehran Iran Control and Intelligent Processing Center of Excellence Department of Electrical and Computer Engineering University of Tehran P.O.Box: 14395 515 Tehran Iran School of Cognitive Science IPM Tehran Iran

ISBN: (纸本)1424404568

Brain Emotional Learning Based Intelligent controller, BELBIC, has been used for model free adaptive control of several complex industrial plants. It has proven to be very effective controller with light computational load. The aim of this research is to present a general purpose toolbox implementing BELBIC as well as examples of its performance. The user can choose to utilize default configurations or to customize specific configuration to the given plant. © 2006 IEEE.

关键词： Intelligent control

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Sensor Motion Planning in Distributed Parameter Systems Using Turing's Measure of Conditioning

Sensor Motion Planning in Distributed Parameter Systems Usin...

引用

IEEE Conference on Decision and control

作者： Dariusz Ucinski YangQuan Chen Institute of Control and Computation Engineering University of Zielona Góra Zielona Poland Department of Electrical and Computer Engineering Utah State University Logan UT USA

ISBN: (纸本)1424401704

We present a technique for planning sensor motions in a specified two-dimensional spatial domain in such a way as to make the Hessian of the parameter estimation cost well conditioned. The framework is based on the use of Turing's measure of conditioning, whose minimization yields the confidence regions for the parameters as spherical as possible. Since this does not necessarily guarantee a high information content in the measurements, an additional constraint is imposed on the D-efficiency of the solutions. Then the approach converts the problem to an optimal control one in which both the control forces of the sensors and the initial sensor positions are optimized. Numerical solutions are then obtained using the MATLAB PDE toolbox and the RIOTS_95 optimal control toolbox which handles various constraints imposed on the sensor motions

关键词： Sensor systems Distributed parameter systems Motion measurement Pollution measurement Parameter estimation Optimal control Mathematical model Ellipsoids Partial differential equations Area measurement

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IEEE IRI 2006 Keynote Speech(I);System of Systems - From Definition to Architecture to Simulation to Space Applications

IEEE IRI 2006 Keynote Speech(I);System of Systems - From Def...

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IEEE International Conference on Information Reuse and Integration (IRI)

作者： Mo Jamshidi Department of Electrical and Computer Engineering and Autonomous Control Engineering-ACE Center University of Technology San Antonio TX USA

One of the main challenges of any related paradigms in systems engineering is being able to handle complex systems under unforeseen uncertainties. A system may be called complex if its dimension (order) is too high and its model (if available) is nonlinear, interconnected, and information on the system is so uncertain that classical techniques cannot easily handle the problem. A system of systems (SoS) is a "super system," or an integration of complex systems coordinated together in such a way as to achieve a wider set of goals with possible higher significance such as global warming, Mars missions, air traffic control, global earth observation system, etc. computational Intelligence or Soft Computing, a consortium of fuzzy logic (approximate reasoning), neuro-computing (learning), genetic algorithms and genetic programming (optimization), has proven to be a powerful set of tools for adding autonomy and semi-autonomy to many complex systems. For such systems the size of soft computing control architecture will be nearly infinite. In this presentation, paradigms using soft computing approaches are utilized to design autonomous controller with controller reuse for a number of space applications. The notion of adaptation in autonomous controller reuse can be handled via intelligent tools to add on additional capabilities in real-time scenarios. Learning from past experience is but one such scenario for the reuse of autonomous controllers. These applications include satellite array formations, robotic agents and the Virtual Laboratory (V-LAB®) for multi-physics modeling and simulation.

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Finding the Number of Clusters in a Dataset Using an Information Theoretic Hierarchical Algorithm

Finding the Number of Clusters in a Dataset Using an Informa...

引用

IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： M. Aghagolzadeh H. Soltanian-Zadeh B. N. Araabi A. Aghagolzadeh Department of Electrical and Computer Engineering Control and Intelligent Processing Center of Excellence University of Tehran Tehran Iran Faculty of Electrical and Computer Engineering University of Tabriz Tabriz Iran

One of the most challenging problems of clustering is detecting the exact number of clusters in a dataset. Most of the previous methods, presented to solve this problem, estimate the number of clusters with model based algorithms, which are not able to detect all types of clusters and also face a problem in detecting coupled clusters in a dataset. In this paper we propose a new method for finding the number of clusters in a dataset utilizing information theory and a top-down hierarchical clustering algorithm. The algorithm starts from a large number of clusters and reduces one cluster in any iteration and then allocates its data points to the remaining clusters. Finally, by measuring information potential, the exact number of clusters in a desired dataset is detected. Our method shows high capability and stability in detecting the number of clusters even in complex datasets, as it is computational efficient too. We show the effectiveness of the proposed method by experimenting on several artificial and real datasets and comparing its results with two developed methods for finding the number of clusters in a dataset. The comparisons show superiority of the proposed method.

关键词： Clustering algorithms Entropy Face detection Process control Intelligent control Information theory Stability computational efficiency Electric variables measurement computational complexity

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High SNR flexible top hat monopole probe for 1.5 T MRI

High SNR flexible top hat monopole probe for 1.5 T MRI

引用

作者： Mohammadzadeh, M. Shahabadi, M. Soltanian-Zadeh, H. Tavakoli, A. Rafiei, B. Javidnia, D. Oghabian, M.A. Department of Physics Amir-Kabir University of Technology Tehran Iran School of Electrical and Computer Engineering University of Tehran Tehran Iran Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Image Analysis Laboratory Department of Radiology Henry Ford Health System Detroit MI United States Department of Electrical Engineering Amir-Kabir University of Technology Tehran Iran Medical Imaging Center Imam Khomeyni Hospital Tehran Iran Research Center for Science and Technology in Medicine Tehran University of Medical Sciences Tehran Iran

In this paper, design principles and application of a thin and flexible intravascular top hat monopole probe with increased signal-to-noise ratio (SNR) and improved longitudinal and radial coverage are described and compared with the conventional monopole probe. The top hat probe is constructed by removing a segment of the shield of a coaxial cable. A flexible thin copper foil in contact with the inner conductor of the cable is added to the end section of the cable. The copper foil acts as an antenna top hat load increasing the uniformity of the current distribution on the probe and establishes a uniform region of SNR distribution around the probe. Improvement of the SNR distribution of the top hat probe relative to the conventional monopole probe is evaluated using quantitative indices. Experimental results show that for the top hat probe, the ratio of the maximum image SNR to its relative standard deviation (SR) is 2.73 times higher than that of a conventional probe. © 2006 IOP Publishing Ltd.

关键词： Medical imaging

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