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IEEE International Conference on e-Business Engineering (ICEBE)

作者： Benjamin Lui Dickson K.W. Chiu Haiyang Hu Hua Hu Yi Zhuang Department of Information Engineering Chinese University of Hong Kong Hong Kong China Department of Computer Science and Engineering Chinese University of Hong Kong Hong Kong China College of Computer Science and Information Engineering Zhejiang Gongshang University China State Key Laboratory for Novel Software Technology Nanjing University China College of Computer Science Hangzhou Dianzi University China

Traditional content management systems (CMS) for digital television (TV) services usually attempt to provide friendly user interfaces with some content information for attracting new subscriptions. However, the searching and subscription functions provide limited abilities for user requirement elicitation and matchmaking of contents. With the help of ontology, this paper purposes an agent-based content management system for digital TV services. Not only users can retrieve matched contents effectively, service providers can also obtain multi-level analysis of user behaviors and achieve cross-sale of contents and services. We demonstrate the flexibility of our approach with a sample ontology and system architecture.

关键词： Ontologies Content management Digital TV Subscriptions Multimedia systems Collision mitigation computer science Portals Educational institutions User interfaces

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Real-Time Rendering of Translucent Objects with Variable Sizes

Real-Time Rendering of Translucent Objects with Variable Siz...

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11th IEEE International Conference on computer-Aided Design and computer Graphics(第11届IEEE国际计算机辅助设计与图形学学术会议 IEEE CAD/GRAPHICS 2009)

作者： Chunhui Yao Bin Wang School of Software Tsinghua University Beijing China 100084 Department of Computer Science and Technology Tsinghua University Beijing China 100084 Key Laboratory for Information System Security Ministry of Education Beijing China 100084 Tsinghua

We present a novel technique for real-timely rendering translucent objects. Our technique is mainly based on translucent shadow maps with a new adaptive sampling strategy. In this sampling strategy, the hierarchy levels and positions for sampling are selected according to the size of target object. By our optimization, less storage in the texture is required than that in previous methods. Compared with previous methods, our technique provide a way to choose the proper sampling pattern and is applicable for a wider range of object sizes. With the implementation on GPU, the presented technique is able to render translucent objects in animated scenes where lights and material parameters vary real-timely without any lengthy preprocessing.

关键词： Rendering (computer graphics) Mobile computing Testing Graphics Cranes Control systems computer architecture Helium Virtual reality computer science

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Frequency-domain approach to robust iterative learning controller design for uncertain time-delay systems

Frequency-domain approach to robust iterative learning contr...

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Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

作者： Deyuan Meng Yingmin Jia Junping Du Fashan Yu the Department of Systems and Control Beihang University (BUAA) the Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and TechnologyBeijing University of Posts and Telecommunications the School of Electrical Engineering and Automation Henan Polytechnic University

This paper deals with the robust iterative learning control(ILC) for time-delay systems(TDS) with both model and delay *** ILC algorithm with anticipation in time is considered,and a frequency-domain approach to its design is *** shows that a necessary and sufficient convergence condition can be provided in terms of three design parameters:the lead time,the learning gain,and the performance weighting *** particular,if the lead time is chosen as just the delay estimate,then the convergence condition is derived independent of the delay and the *** this case,with the selection of the performance weighting function,the perfect tracking can be achieved,or the least upper bound of the L2-norm of the limit tracking error can be guaranteed less than the least upper bound of the L2-norm of the initial tracking error.

关键词： Iterative learning control time-delay systems frequency-domain approach anticipation in time

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Gene Selection of Multiple Cancer Types via Huberized Multi-class Support Vector Machine

Gene Selection of Multiple Cancer Types via Huberized Multi-...

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Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

作者： Juntao Li Yingmin Jia Junping Du Fashan Yu the Department of Systems and Control Beihang University (BUAA) the Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and TechnologyBeijing University of Posts and Telecommunications the School of Electrical Engineering and Automation Henan Polytechnic University

This paper proposes a new type of regularization in the context of multi-class support vector machine for simultaneous classification and gene *** combining the huberized hinge loss function and the elastic net penalty,the proposed support vector machine can do automatic gene selection and further encourage a grouping effect in the process of building classifiers,thus leading a sparse multi-classifiers with enhanced ***,a reasonable correlation between the two regularization parameters is proposed and an efficient solution path algorithm is *** of microarray classification are performed on the leukaemia data set to verify the obtained results.

关键词： Gene selection grouping effect microarray classification solution path support vector machine(SVM)

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H∞-based design approach to discrete-time learning control systems with iteration-varying disturbances

H∞-based design approach to discrete-time learning control ...

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Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

This paper is concerned with the iterative learning control(ILC) problem for discrete-time systems with iterationvarying *** the so-called super-vector approach to ILC,the discrete domain bounded real lemma is employed to develop a sufficient condition ensuring both the stability and the desired H∞ performance of the ILC *** is shown that this sufficient condition can be presented in terms of linear matrix inequalities(LMIs),which can also determine the learning gain matrix.A numerical simulation example is included to validate the theoretical results.

关键词： Iterative learning control discrete-time systems iteration-varying disturbances H_∞ performance linear matrix inequality

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Quantum programming languages

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中国高等学校学术文摘·计算机科学 2008年第2期2卷 161-166页

作者： Jiafu XU Fanming SONG State Key Laboratory for Novel Software Technology Department of Computer Science and TechnologyNanjing UniversityNanjing 210093China

After giving a bird's view of some existing quantum programming languages,this paper reports the recent results made by the quantum computation group of the state key laboratory for Novel software technology and the department of computer science and technology at Nanjing University,i.e.,the quantum programming languages NDQJava,NDQFP and their processing systems.

关键词： quantum programming language imperative paradigm declarative paradigm lexical analyzer syntactic analyzer code transformer primitive function combining form interpreter compilation

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L-UCON: Towards Layered Access Control with UCON

L-UCON: Towards Layered Access Control with UCON

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IEEE International Conference on Computational science and Engineering, CSE

作者： Hao Hu Hao Li Dengguo Feng National Engineering Research Center for Information Security Beijing China Department of Electronic Engineering and Information Science University of Science and Technology Hefei China The State Key Laboratory of Information Security Institute of Software Chinese Academy and Sciences Beijing China

Traditional access control solutions suffer from difficulties in access rights authorization and usage policy enforcement, especially in highly distributed environments. The layered nature of common digital content should also be exploited to efficiently provide the user with choices over digital content layers. This paper presents a layered access control architecture L-UCON based on usage control model UCON and trusted computing. We are motivated to design L-UCON as a general access solution by binding policies to usage controlled digital content. Moreover, L-UCON is a negotiable solution caring about both the user's and the owner's benefits. Test results show that performance of L-UCON is acceptable.

关键词： Access control Permission Information security Authorization Protection Privacy Books Information science computer architecture Testing

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Quantum programming languages: A tentative study

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science in China(Series F) 2008年第6期51卷 623-637页

作者： XU JiaFu SONG FangMin State Key Laboratory for Novel Software Technology Department of Computer Science and TechnologyNanjing University Nanjing 210093 China

Starting with some simple representative quantum programming languages, this paper lays stress on quantum computation, language paradigm, program structure, input/output, exception facility, and especially the recent results of the quantum computation group at Nanjing University, namely the functional quantum programming language NDQFP. All primitive functions and combining forms in NDQFP are given in the appendix.

关键词： quantum programming languages language paradigm imperative programming language declarative programming language lexical analyzer syntactic analyzer assembler interpreter

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The ATPG Conflict-Driven Scheme for High Transition Fault Coverage and Low Test Cost

The ATPG Conflict-Driven Scheme for High Transition Fault Co...

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IEEE VLSI Test Symposium (VTS)

作者： Zhen Chen Dong Xiang Boxue Yin Department of Computer Science and Technology Tsinghua University School of software Key Laboratory for Information System Security Ministry of Education Tsinghua National Laboratory for Information Science and Technology Tsinghua University

ISBN: (纸本)9781424437696

This paper presents two new conflict-driven techniques for improving transition fault coverage using multiple scan chains. These techniques are based on a novel test application scheme, in order to break the functional dependency of broadside testing. The two new techniques analyze the ATPG conflicts in broadside test generation, and try to control the flip-flops with most influence on the fault coverage. The conflict-driven method selects some flip-flops that work in the enhanced mode and distributes them into different chains. In the multiple scan chain architecture, to avoid too many scan-in pins, some chains are driven by the same scan-in pin to construct a tree-based architecture. Based on the architecture, the new test application scheme allows some flip-flops working in the enhanced mode, while most of others working in the traditional broadside mode. With the efficient conflict-driven selection method, fault coverage is improved greatly, which can also reduce test application time and compress test data volume. Experimental results show that fault coverage based on the proposed method is comparable to the enhanced scan.

关键词： Automatic test pattern generation Costs Circuit faults Flip-flops Circuit testing Fault detection software testing System testing Educational technology Paper technology

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Distributed H∞ consensus control for networks of multiple agents with linear coupling dynamics

Distributed H∞ consensus control for networks of multiple a...

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SICE Annual Conference

作者： Yang Liu Yingmin Jia Junping Du Fashan Yu Department of Systems and Control Beihang University Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

This paper is devoted to the consensus control for a network of autonomous agents with high-dimension linear coupling dynamics and subject to external disturbances. By transforming the consensus control problem into an H infin control problem, we propose a distributed state feedback protocol, and obtain conditions in terms of linear matrix inequalities (LMIs) to ensure the consensus with a prescribed H infin performance level for networks with zero and nonzero communication delays, respectively. Furthermore, the undetermined feedback matrix of the proposed protocol is also solved. A numerical example is included to validate the theoretical results.

关键词： Control systems Communication system control Protocols Multiagent systems Vehicle dynamics Automatic control Telecommunication control Electronic mail Linear feedback control systems state feedback

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