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IEEE International Conference on Microelectronic Systems Education

作者： J.E. Stine J. Grad I. Castellanos J. Blank V. Dave M. Prakash N. Iliev N. Jachimiec VLSI Computer Architecture Arithmetic and CAD Research Laboratory Department of Electrical and Computer Engineering Illinois Institute of Technology Chicago IL USA

A system on chip (SoC) library for MOSIS scalable CMOS rules has been developed It is intended for use with Synopsys and Cadence Design Systems electronic design automation tools. Students can also use layout tools for semi-custom designs and insert them with the proposed design flow. Scalable submicron rules are used for the cell library, allowing it to be used for several AMI and TSMC technologies. Consequently, it is possible to fabricate student projects as well as do research in system on chip design through the MOSIS educational program. All steps in the design flow are fully automated with scripts and have been tested successfully in a large VLSI design class at the Illinois institute of technology.

关键词： High level synthesis System-on-a-chip CMOS technology Delay estimation Libraries Energy management Very large scale integration Educational programs Hardware Circuits

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Adoption-Centric software Maintenance Process Improvement via Information Integration

Adoption-Centric Software Maintenance Process Improvement vi...

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IEEE International Workshop on software technology and Engineering Practice (STEP)

作者： Shihong Huang S. Tilley M. VanHilst D. Distante Computer Science & Engineering Florida Atlantic University USA Department of Computer Sciences Florida Institute of Technology USA Research Center on Software Technology University of Sannio Italy

software process improvement is an iterative activity, normally involving measurement, analysis, and change. For most organizations, the existing software process has substantial momentum and is seemingly immovable. Any change to existing process activities causes turbulence in the organization, which can be a significant barrier to adoption of the quality improvement initiative. This paper presents a quiescent, non-invasive, and adoption-centric approach to process improvement for software maintenance. The approach realizes the goal of improving the efficiency of existing processes by minimizing changes to existing workflows and focusing on integrating enhancements at the micro-level of the system. By leveraging information buried in existing data, making it explicit, and integrating the results with known facts, more informed decision-making is made possible. The approach is illustrated with a model problem concerning redocumentation of an embedded control system in the context of performing higher-quality software maintenance

关键词： software maintenance computer science software systems Production Manufacturing software engineering software tools software measurement Information analysis Decision making

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Optimized consistence maintenance strategy in semantic caching

Optimized consistence maintenance strategy in semantic cachi...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Hao Xiao-Wei Zhang Tao Li Lei Liu Feng-Yu Software Research Institute Sun Yat-Sen University China The Computer Department Nanjing University of Science and Technology China

Semantic caching is an attractive method when disconnection or connection jam happens in a distributed computing or a mobile computing environment. However, in semantic caching, the consistency maintenance technology is a challengeable technology. The existent methods have many limitations that restrict the practicability of semantic caching in a great extent. This paper extends the existing work in three ways: firstly, corrects relative concepts in previous works and gives a kind of valid consistency maintenance strategy; furthermore, produces related optimization functions to simplify the updating queue; finally, implements the simulation system to test the performance of our works in semantic caching.

关键词： Partial response channels Mobile computing Sun Distributed computing Space technology System testing Mobile communication Database systems Computational modeling Wireless communication

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Defects in a new process model

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Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of technology (Transportation Science and Engineering) 2005年第4期29卷 579-582页

作者： Li, Shunxin Ma, Yutao Wu, Jianghua College of Computer Science and Technology Wuhan University of Science and Technology Wuhan 430081 China Laboratory of Software Engineering Wuhan University Wuhan 430072 China Wuhan Digital Engineering Research Institute Wuhan 430074 China

CBSD (component-based software development) based on SA (software architecture) is a new method for system development. The structure of its supporting process is introduced firstly, and then the formal description is given, so a new SPM (software process model) is constructed. The existing defects are analyzed from a point of view of relation between function and structure in a typical iteration workflow when SPM is studied, and the factors resulting in them are also presented. The feasible ways are put forward to tackling defects, which make for improving the process model. Finally, an example of practical development is used to illustrate the above discussion.

关键词： Defect Model software architecture software process

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A novel evolutionary algorithm based on an orthogonal design for dynamic optimization problems (ODEA)

A novel evolutionary algorithm based on an orthogonal design...

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2005 IEEE Congress on Evolutionary Computation, IEEE CEC 2005

作者： Zeng, SanYou De Garis, Hugo He, Jun Kang, LiShan Dept. of Computer Science Zhuzhou Institute of Technology 412008 Zhuzhou China Research Center for Space Science and Technology China China University of Geosciences 430074 Wuhan China Dept. of Computer Science Utah State University Logan UT 84322 United States School of Computer Science University of Birmingham Birmingham B15 2TT United Kingdom State Key Laboratory of Software Engineering Wuhan University 430072 Wuhan China

ISBN: (纸本)0780393635

This paper introduces an orthogonal evolutionary algorithm for dynamic optimization problems with continuous variables (called ODEA). Its population does not consist of individuals, but rather of "niches". Each niche selects the best solution found so far as its representative. An orthogonal design method is employed to find a potentially good solution that may become the representative of the niche in the mutation operator. We employ a complex benchmark to test the new approach. Numerical experiments show that the ODEA algorithm performs a lot better than the SOS (Self Organizing Scouts) algorithm [1]. © 2005 IEEE.

关键词： Evolutionary algorithms

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8.3.1 Towards an Integrated Methodology for the Model-based Development of Embedded Automotive Control software

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INCOSE International Symposium 2005年第1期15卷 1201-1215页

作者： Buhr, Kerstin Conrad, Mirko Dörr, Heiko Fey, Ines Technical University of Berlin Institute for Software Engineering and Theoretical Computer Science Germany DaimlerChrysler AG Research E/E and Information Technology Germany

The complexity of developing automotive control unit software can generally not be mastered without an efficient development methodology. The development discipline activities requirements, modelling / implementation and quality assurance are, for this reason, supported by individual methods. In order to optimally coordinate the methods with one another during their deployment, a structured integration of these individual specialised methods is, however, essential. The following paper, using the model-based development approach as an example, outlines the content and structure of an integrated methodology that provides such integration. Its use shortens development time and increases product quality by coordinating the deployment of individual methods over the course of the entire developmental process. The main components of this kind of integrated methodology are an interdisciplinary information model, process models with integrated procedures for the realisation of single development activities as well as guidance such as checklists, templates, and examples, among other things. In this paper, we present the experiences that we have gained at DaimlerChrylser research in developing and applying such an integrated methodology1. © 2005 The Authors.

关键词： Quality assurance

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Enhancing DNS security using the SSL trust infrastructure

Enhancing DNS security using the SSL trust infrastructure

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Workshop on Object-Oriented Real-Time Dependable Systems (WORDS)

作者： C. Fetzer G. Pfeifer T. Jim Department of Computer Science Institute for System Architecture Dresden University of Technology Dresden Germany AT and T Research Laboratories Florham Park NJ USA

The main functionality of the domain name system (DNS) is to translate symbolic names into IP addresses. Due to the criticality of DNS for the proper functioning of the Internet, many improvements have been proposed for DNS in terms of security and dependability. However, the current secure DNS (DNSSEC) standard has still several problems that need further consideration. For example, online updates and denial of service attacks are not sufficiently addressed. These problems are serious obstacles that might prevent DNSSEC from replacing the traditional DNS. In this paper we discuss several of these technical and economic problems. To address these issues, we propose a simple extension to the existing DNS. It is SSL based and individual domains can decide independently of each other if and when to adopt the extensions. We show how to implement these extensions with the help of a simple proxy DNS server.

关键词： Domain Name System computer crime Web server Data security computer science computer architecture Web and internet services Standards development Large-scale systems Delay

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Autonomous video-on-demand system for heterogeneous quality levels to achieve high assurance

Autonomous video-on-demand system for heterogeneous quality ...

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International Symposium on Autonomous Decentralized Systems (ISADAS)

作者： M. Kanda M. Tasaka Xiaodong Lu I. Luque Jiang Yanqing K. Moriyama R. Takanuki Y. Kuba Solution Development Laboratories Research and Development Unit NEC Corporation Limited Japan Department of Computer Science Tokyo Institute of Technology Meguro Tokyo Japan Software Division Hitachi and Limited Yokohama Japan

Video streaming services that provide heterogeneous video quality are required because the usage environments are diverse and changing dynamically. Considering the characteristics of the application, services must be distributed without stopping the service or deteriorating video quality. In order to achieve that, though the volume of the video data is too huge, it is necessary to reduce total storage volume and transmission quantity. In this paper, autonomous video-on-demand system architecture for heterogeneous quality levels and an evaluation method of service reliability are proposed. In this system, we employ layered video streaming data and distribute each layered video stream data in different servers. The system, streams the data from multiple sources to the users, assuring a reliable transmission. The evaluation shows the effectiveness of the proposal.

关键词： Streaming media Information systems Proposals IP networks Web and internet services computer science software quality Laboratories National electric code Network servers

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A novel evolutionary algorithm based on an orthogonal design for dynamic optimization problems (ODEA)

A novel evolutionary algorithm based on an orthogonal design...

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Congress on Evolutionary Computation

作者： San You Zeng H. de Garis Jun He LiShan Kang Research Center for Space Science & Technology China University of Geosciences Wuhan China Dept. of Computer Science Zhuzhou Institute of Technology Zhuzhou China School of Computer Science University of Birmingham Birmingham U. K State Key Laboratory of Software Engineering Wuhan University Wuhan China Dept. of Computer Science Utah State University Logan Utah USA Research Center for Space Science & Technology China University of Geoscience Wuhan China

This paper introduces an orthogonal evolutionary algorithm for dynamic optimization problems with continuous variables (called ODEA). Its population does not consist of individuals, but rather of "niches". Each niche selects the best solution found so far as its representative. An orthogonal design method is employed to find a potentially good solution that may become the representative of the niche in the mutation operator. We employ a complex benchmark to test the new approach. Numerical experiments show that the ODEA algorithm performs a lot better than the SOS (self organizing scouts) algorithm in Branke, Kaufler, Schmidt and Schmeck, (2000).

关键词： Evolutionary computation Algorithm design and analysis Design optimization Space technology Design methodology computer science Geology Genetic mutations Optimization methods Benchmark testing

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Future building blocks for parallel architectures

Future building blocks for parallel architectures

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International Conference on Parallel Processing (ICPP)

作者： U. Bruening W. Giloi University of Mannheim Germany Fraunhofer Institute for Computer Architecture and Software Technology Germany

Early parallel architectures where shared memory systems (UMA, NUMA), which had the disadvantage of the shared memory bottleneck that limited the scalability of the system. In contrast, distributed memory architectures with message passing (NORMAs) provided any desired scalability; however, at the cost of a substantial communication latency. The latency could be reduced by custom communication hardware (examples: SUPRENUM, MANNA) yet since there was still a software routine involved, the remaining latency was in the order of microseconds. Therefore, and because of the simpler programming model of shared memory, it became the trend of the nineties to return to UMAs and NUMAs, employing powerful communication hardware to minimize the remote memory access time.

关键词： Parallel architectures Delay Hardware Scalability computer architecture software Memory architecture Message passing Costs Art

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