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IET Irish Signals and Systems Conference (ISSC 2010)

作者： M.H. Schwarz C.S. Cox J. Börcsök Department of Computer architecture and System programming Safety Computer Technology University of Kassel Germany Control Systems Centre University of Sunderland UK Department of Computer architecture and System programming University of Kassel Germany

This paper presents a new tuning method based on model parameters identified in closed-loop. For classical controllers such as PI(D) controllers a large number of simple tuning methods for various application areas exist. However, when it comes to designing a generalised predictive controller (GPC) four parameters have to be specified. To choose those parameters is not a trivial task since they are not directly related to control or regulation performance. The presented tuning method exploits model-parameters to select suitable controller parameters. Additionally, a Rhinehart filter is incorporated in the design to decrease the impact of noise, therefore, a fifth parameter has to be optimised. The proposed method has been tested in simulation and on a real system.

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High-throughput screening of cell-surface topographic interactions

High-throughput screening of cell-surface topographic intera...

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14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, MicroTAS 2010

作者： Unadkat, Hemant V. Hulsman, Marc Cornelissen, Kamiel Papenburg, Bernke Truckenmüller, Roman K. Post, Gerhard F. Uetz, Marc Reinders, Marcel J.T. Stamatialis, Dimitrios Van Blitterswijk, Clemens De Boer, Jan MIRA Research Institute Department of Tissue Regeneration University of Twente Postbus 217 7500 AE Enschede Netherlands Discrete Mathematics and Mathematical Programming University of Twente Postbus 217 7500 AE Enschede Netherlands Membrane Science and Technology Group University of Twente Postbus 217 7500 AE Enschede Netherlands Delft Bioinformatics Lab. Delft University of Technology Mekelweg 4 Delft Netherlands

ISBN: (纸本)9781618390622

High throughput biomaterials screening largely remains unexplored. The present study was an attempt to explore the area of high throughput as well as high content screening of cell surface topographic interaction. An array of surface topographies called TopoChip was fabricated using a widely used polymer in tissue engineering, Poly (DL-lactic acid). The topographies were subsequently screened for their mitogenic effect on cells. We were able to detect topographic parameters responsible for mitogenic effect of surface topographies.

关键词： Cytology

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A comparative analysis of load balancing algorithms applied to aweather forecast model

A comparative analysis of load balancing algorithms applied ...

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IEEE International Symposium on Computer Architecture and High Performance Computing

作者： Rodrigues, Eduardo R. Navaux, Philippe O. A. Panetta, Jairo Fazenda, Alvaro Mendes, Celso L. Kale, Laxmikant V. Institute of Informatics Federal University of Rio Grande do Sul Porto Alegre Brazil Center for Weather Forecast and Climate Studies INPE Cachoeira Paulista Brazil Science and Technology Department Federal University of Sao Paulo Sao Jose dos Campos Brazil Parallel Programming Laboratory University of Illinois at Urbana-Champaign Urbana United States

ISBN: (纸本)9780769542164

Among the many reasons for load imbalance in weather forecasting models, the dynamic imbalance caused by localized variations on the state of the atmosphere is the hardest one to handle. As an example, active thunderstorms may substantially increase load at a certain timestep with respect to previous timesteps in an unpredictable manner - after all, tracking storms is one of the reasons for running a weather forecasting model. In this paper, we present a comparative analysis of different load balancing algorithms to deal with this kind of load imbalance. We analyze the impact of these strategies on computation and communication and the effects caused by the frequency at which the load balancer is invoked on execution time. This is done with-out any code modification, employing the concept of processor virtualization, which basically means that the domain is over-decomposed and the unit of rebalance is a sub-domain. With this approach, we were able to reduce the execution time of a full, real-world weather model. © 2010 IEEE.

关键词： Weather forecasting

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Parameters Extraction of Pseudo-Code PM Combined with SFM Signal Based on QMFBT Techniques

Parameters Extraction of Pseudo-Code PM Combined with SFM Si...

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International Conference on Multimedia technology

作者： Jing Liu Hui-chang Zhao Shu-ning Zhang Department of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and Technology of PLA Nanjing China Institute for System Programming Russian Academy of Sciences Moscow Russia Computational Math and Cybernetics Dept. Moscow State University Moscow Russia

To extract feature parameters of Pseudo-code binary phase modulation combined with sine frequency modulation continuous wave(PRBC-SFMCW), the linear decomposition techniques using Quadrature Mirror Filter Bank Tree (QMFBT) is adopted. With this method, the intercepted signal is decomposed and analyzed by QMFBT. Then according to the feature of PRBC-SFMCW signal contained in different time-frequency layers the algorithm of feature parameter extraction on an appropriate time-frequency layer is presented. The analysis and simulation results show that the SNR of PRBC-SFMCW signal is improved after decomposition. At the same time, the across section disappear and parameters can be estimated accurately in a low SNR condition.

关键词： Frequency modulation Time frequency analysis Feature extraction Filter bank Signal resolution Signal to noise ratio Parameter extraction

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Coloring gray-scale image using artificial neural networks

Coloring gray-scale image using artificial neural networks

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2nd International Conference on Adaptive Science and technology, ICAST 2009

作者： Karlik, Bekir Sariöz, Mustafa Haliç University Department of Computer Engineering 34381 Istanbul Turkey Fatih University Computer Technology and Programming 34500 Istanbul Turkey

ISBN: (纸本)9781424435234

This paper presents a novel method on coloring the grayscale images. For this purpose, a combination of artificial neural networks and some image processing algorithms was developed to transfer colors from a user-selected source image to a target grayscale image. According to the results of this combining method, a survey where volunteers were asked to rate the plausibility of the colorings generated automatically was performed for individual images. In most cases automatically-colored images were rated either as totally or mostly acceptable. ©2009 IEEE.

关键词： Neural networks

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LearnLib: A framework for extrapolating behavioral models

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International Journal on Software Tools for technology Transfer 2009年第5期11卷 393-407页

作者： Raffelt, Harald Steffen, Bernhard Berg, Therese Margaria, Tiziana Department of Programming Systems TU Dortmund Otto-Hahn-Str. 14 44227 Dortmund Germany Department of Information Technology Uppsala University 751 05 Uppsala Sweden Department of Services and Software Engineering Universität Potsdam August-Bebel-Str. 89 14482 Potsdam Germany

In this paper, we present the LearnLib, a library of tools for automata learning, which is explicitly designed for the systematic experimental analysis of the profile of available learning algorithms and corresponding optimizations. Its modular structure allows users to configure their own tailored learning scenarios, which exploit specific properties of their envisioned applications. As has been shown earlier, exploiting application-specific structural features enables optimizations that may lead to performance gains of several orders of magnitude, a necessary precondition to make automata learning applicable to realistic scenarios. © Springer-Verlag 2009.

关键词： Learning algorithms

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Self-management in a control architecture for parallel kinematic robots

Self-management in a control architecture for parallel kinem...

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2008 ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC 2008

作者： Maaß, Jochen Steiner, Jens Amado, Ana Michaela, Huhn Raatz, Annika Hesselbach, Jurgen Institute for Machine Tools and Production Technology Department of Mechanical Engineering TU Braunschweig 38106 Braunschweig Germany Institute for Programming and Reactive Systems Department of Computer Science TU Braunschweig 38106 Braunschweig Germany

ISBN: (纸本)9780791843253

Maintainability, extendibility and reusability of components in the design of robot control architectures is a major challenge. Parallel kinematic robots feature a wide variety of structures and applications. They are subject to easy reconfiguration because of the passive structure limbs. This class of robots requires more extensive calculations in their control laws than serial manipulators. During complex motion tasks, such as the ones required in assembly sequences, the algorithmic load may also vary over time. However, no generic control approach exists in order to reduce the complexity of control design for these kind of robots. In this paper the authors introduce an architecture for handling and assembly applications featuring self-management techniques as an approach to tackle these problems. The existing architecture features a modular and layered design. Concepts of self-management and self-optimization applied to this architecture are outlined. These properties are realized by the integration of self-managers within crucial system components. The mechanisms are extended for a future distributed version of the architecture. Real-time properties are guaranteed by an online formal analysis that verifies planned adaptations before realizing them. Copyright © 2008 by ASME.

关键词： Reusability

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Coloring gray-scale image using artificial neural networks

Coloring gray-scale image using artificial neural networks

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International Conference on Adaptive Science & technology (ICAST)

作者： Bekir Karlik Mustafa Sariöz Department of Computer Engineering Haliç University Istanbul Turkey Computer Technology and Programming Fatih University Istanbul Turkey

关键词： Gray-scale Artificial neural networks Color Humans Pixel Image databases Motion pictures Computer networks Image processing Data visualization

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Separation of concerns for Multithreads Object-Oriented programming

Separation of concerns for Multithreads Object-Oriented Prog...

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International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information technology, ECTI-CON

作者： Paniti Netinant Concurrent Programming Research Group Illinois Institute of Technology Chicago IL USA Computer Science Department Bangkok University Bangkok Thailand

Multithreaded Object-Oriented programming in concurrency environment using object-oriented technology is a complex activity. Programmers need to be aware of issues unrelated to their domain of problem, and are often unprepared for the challenges of the concurrent object-oriented programming brings. The interaction of their components becomes more complex, and makes it difficult to validate the design and correctness of the implemented program. Supporting separation of concerns in the design and implementation of the multithreaded object-oriented programming can provide a number of benefits such as comprehension, reusability, extensibility and adaptability in both design and implementation. We have tackled this problem by adopting the technique of separation of concerns in multithreaded object-oriented programming. In this paper we demonstrate an aspect-oriented approach that can be used for multithreaded object-oriented programming. We also show how better the separation of concerns in components. Readers/Writers problem is demonstrated using an aspect-oriented approach. Our methodology, which is based on aspect-oriented techniques as well as language and architecture independence, is an aspect-oriented framework.

关键词： Object oriented programming Computer architecture programming profession Yarn Concurrent computing Parallel programming Delay Robustness Software architecture Software development management

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Performance Characterization of SPEC CPU2006 Benchmarks on Intel and AMD Platform

Performance Characterization of SPEC CPU2006 Benchmarks on I...

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International Workshop on Education technology and Computer Science, ETCS

作者： Shengmei Li Buqi Cheng Xingyu Gao Lin Qiao Zhizhong Tang Department of Computer Science and Technology Tsinghua University Beijing China Programming Systems Laboratory Intel China Research Center Limited Beijing China Chinese Academy and Sciences Beijing China

For understanding the performance differences caused by different computer architectures and optimization technologies, the paper characterizes performance of SPEC CPU2006 benchmarks both on Intel and AMD platform. Using the performance events collected by Performance Monitor Unit, we compare their performance differences and analyze the causes from the features of architectures and the optimization technologies. Our results and analysis help the programmers better understand the memory performance and branch prediction performance which are caused by architectures and guide them in the optimization. The analysis also help the processor architects better balance among the key architecture factors such as memory disambiguation and hardware prefetch when doing architecture design decision.

关键词： Microarchitecture Decoding Educational technology Paper technology programming profession Performance analysis Computer science Computer architecture Hardware Prefetching

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