检索结果-内蒙古大学图书馆

International Conference on Application Specific Systems (ASAP), Architectures and Processors

作者： G. Dimitrakopoulos H.T. Vergos D. Nikolos C. Efstathiou Computer Engineering and Informatics Department University of Patras Patras Greece Computer Technology Institute Patras Greece Informatics Department TEI Athens Athens Greece

We reveal the cyclic nature of idempotency in the case of modulo 2/sup n/-1 addition. Then based on this property, we derive for each n, a family of minimum logic depth modulo 2/sup n/-1 adders, which allows several trade-offs between the number of operators, the internal wire length, and the fanout of internal nodes. Performance data, gathered using static CMOS implementations, reveal that the proposed architectures outperform all previously reported ones in terms of area and/or operation speed.

关键词： Bismuth Concurrent computing Logic Fault tolerant systems computer networks computer errors TCPIP IP networks Floating-point arithmetic Power dissipation

来源：评论

学校读者我要写书评

暂无评论

A multiple representational environment for learning programming and C

A multiple representational environment for learning program...

引用

International Conference on Advanced Learning Technologies (ICALT)

作者： K. Zikouli M. Kordaki E. Houstis Department of Computer Engineering & Informatics University of Patras Patras Greece Computer Technology Institute Patras Greece Department of Computer Engineering & Telecommunications University of Thessally Volos Greece

We present the design and the basic features of a computer learning environment for programming and C using geometrical objects (L.E.C.G.O.). The design of this environment was the result of modeling. Basic aspects of constructivism have also been taken into account in its design. L.E.C.G.O. provides pupils with opportunities to: a) express their problem solving strategies in multiple representation systems starting from intuitive representations and moving gradually to more sophisticated ones, b) solve a variety of familiar and meaningful problems, and c) overcome the cognitive load of the syntactical rules of programming in C by using appropriately designed computer-based authoring tools. A similar environment has not yet been reported.

关键词： Telecommunication computing Problem-solving Design engineering Feedback Writing informatics Electronic mail computer science Mathematical programming Flowcharts

来源：评论

学校读者我要写书评

暂无评论

From IPv4 to IPv6: the case of OpenH323 library

From IPv4 to IPv6: the case of OpenH323 library

引用

Workshops on Applications and the Internet (SAINT)

作者： Ch. Bouras A. Gkamas K. Stamos Computer Engineering and Informatics Department University of Patras Patras Greece Research Academic Computer Technology Institute Patras Greece

We discuss our experience form porting the OpenH323 platform to IPv6. We briefly discuss the structure of the platform, and we present the various problems we faced and choices we made, regarding the easiest approach to the porting procedure, the compatibility with earlier, IPv4-only versions of the platform, the existence of tools that could aid us with the porting task and the verification of results. We believe that the results of our effort can serve as guidelines for other similar projects and we present a general methodology which might be applicable to similar porting projects.

关键词： computer aided software engineering Libraries Protocols Guidelines Operating systems informatics Shape Internet IP networks Costs

来源：评论

学校读者我要写书评

暂无评论

Deployment of a DiffServ-based priority service in a MAN/WAN environment

Deployment of a DiffServ-based priority service in a MAN/WAN...

引用

International Conference on Advanced Information Networking and Applications (AINA)

作者： C. Bouras A. Sevasti Department of Computer Engineering and Informatics University of Patras Patras Greece Research Academic Computer Technology Institute Patras Greece

The increased need for quality of service (QoS) in today's networks has concentrated a lot of research and implementation efforts. Particular interest exists for the exploitation of the DiffServ framework towards the provision of qualitative services in MAN and WAN worldwide. Although individual mechanisms have been widely investigated, not many references to studies combining all levels of priority and QoS provisioning exist. This work aims at presenting a thorough and unified approach to the dimensioning and provisioning of a high priority service for high-quality demanding traffic over a MAN/WAN environment. Our approach anticipates for bounds in specific quality metrics and is demonstrated by the experimental case-study of a high-priority service over a MAN topology.

关键词： Wide area networks Quality of service Telecommunication traffic Diffserv networks Traffic control Gold Delay Aggregates computer networks Topology

来源：评论

学校读者我要写书评

暂无评论

Performance analysis for a DiffServ-enabled network: the case of relative service

Performance analysis for a DiffServ-enabled network: the cas...

引用

IEEE International Symposium on Network Computing and Applications

作者： C. Bouras A. Sevasti Department of Computer Engineering and Informatics University of Patras Patras Greece Research Academic Computer Technology Institute Patras Greece

A lot of research work has recently focused on the exploitation of the DiffServ framework towards building reliable networking services that provide deterministic quality guarantees. In this work we are attempting to devise a DiffServ-based service model for relative differentiation of traffic in a network serving aggregated traffic. The service model proposed aims at providing a minimum capacity during congestion and a bounded average end-to-end delay to profile-conforming traffic, obtaining thus a relatively better performance when compared to the best-effort service. We provide the framework on which the proposed service model is based and we present results from its deployment in a simulation environment.

关键词： Performance analysis computer aided software engineering Diffserv networks Telecommunication traffic Traffic control computer networks Delay Quality of service Reliability engineering informatics

来源：评论

学校读者我要写书评

暂无评论

Low power test set embedding based on phase shifters

Low power test set embedding based on phase shifters

引用

IEEE computer Society Annual Symposium on VLSI

作者： M. Bellos D. Kagaris D. Nikolos Computer Engineering & Informatics Department University of Patras Greece Computer Technology Institute Patras Greece Electrical & Computer Engineering Department Southem Illinois University Carbondale IL USA

A new efficient method for test set embedding based on phase shifters was recently proposed This method suffers from high average and peak power consumption. In this work we propose a new phase shifter-based test set embedding method, which, by using interleaving and two LFSRs that change state in a non-overlapping way, significantly reduces the average and peak power consumption.

关键词： Phase shifters Circuit testing Energy consumption Built-in self-test Circuit faults Embedded computing Power engineering computing Automatic testing Integrated circuit testing Power engineering and energy

来源：评论

学校读者我要写书评

暂无评论

Blind image-adaptive watermarking

Blind image-adaptive watermarking

引用

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

作者： I. Karybali K. Berberidis Department of Computer Engineering and Informatics and Research Academic Computer Technology Institute / Research and Development University of Patras Rio-Patras Greece

In this paper a new blind image-adaptive watermarking technique is proposed. The main contributions in this work are the following. First, a new spatial mask taking into account the Human Visual System (HVS) properties, is proposed. The mask is constructed based on the local variance of the cover image prediction error sequence. Second, an improved detection scheme has been developed, which is blind, in the sense that no knowledge concerning the cover image is required. The similarity measure used in the detector is the normalized correlation between the reproduced watermark and the prediction error of the watermarked and possibly attacked image (instead of the image itself). Due to the above modifications the proposed technique exhibits superior performance as compared to the conventional HVS-based blind adaptive watermarking. This performance improvement has been justified theoretically and verified through extensive simulations. In particular, the proposed technique is robust to additive white noise, JPEG and Wavelet compression, filtering etc.

关键词： Watermarking Humans Detectors Additive white noise Transform coding Image coding Filtering Image quality Robustness informatics

来源：评论

学校读者我要写书评

暂无评论

Babylon bookmarks: A taxonomic approach to the management of WWW bookmarks

引用

Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2003年 2641卷 42-48页

作者： Karousos, Nikos Panaretou, Ioannis Pandis, Ippokratis Tzagarakis, Manolis Computer Engineering and Informatics Department Patras University Rio Patras Greece Business Management and Administration Department Patras University Rio Patras Greece Computer Technology Institute Patras Greece

ISBN: (纸本)3540402187

Taxonomic reasoning can be a useful organization paradigm to address issues dealing with the management of WWW bookmarks. Management of WWW bookmarks comprise one of the most frequent activities of WWW users. In this paper, "Babylon Bookmarks" are presented allowing users to apply taxonomic reasoning on WWW bookmarks. "Babylon Bookmarks" is based on the "Babylon System," an infrastructure to support general taxonomic reasoning tasks. The "Babylon System" allows the development of arbitrary taxonomic services based on Open Hypermedia Specifications. © Springer-Verlag Berlin Heidelberg 2003.

关键词： computers

来源：评论

学校读者我要写书评

暂无评论

Accessee controlled type selection for a multiple-type object 03

Accessee controlled type selection for a multiple-type objec...

引用

Proceedings of the 2003 ACM Symposium on Applied Computing

作者： Sato, Hideki Aritsugi, Masayoshi School of Informatics Daido Institute of Technology 10-3 Takiharu-cho Minami-ku Nagoya 457-8530 Japan Department of Computer Science Faculty of Engineering Gunma University 1-5-1 Tenjin-cho Kiryu 376-8515 Japan

ISBN: (纸本)9781581136241

INADA is an enhanced C++ persistent programming language, compliant with ODMG standard. INADA supports multiple-type objects facility which enables any persistent objects to obtain any type at any time the type is needed, and to lose any unnecessary types dynamically. Using the facility, we can model changes in roles/aspects which a real-world entity possesses. Access to a multiple-type object needs to select one from among its own types. The selection is conventionally left to an object accessing a multiple-type object, A real-world entity is, however, flexible enough to decide its roles/aspects depending on a meeting entity whom it exchanges messages with. From the consideration, this paper proposes AccessEE Controlled Type Selection (AEE) method in which a multiple-type object selects one from among its own types depending on an object accessing it. The implementation of AEE method in INADA is also presented, which does not need any modification to the language specification and the processing system of INADA.

关键词： Object oriented programming

来源：评论

学校读者我要写书评

暂无评论

Pattern recognition of EEG signals during right and left motor imagery

Pattern recognition of EEG signals during right and left mot...

引用

SICE Annual Conference

作者： K. Inoue K. Sugioka K. Ishii G. Pfurtscheller K. Kumamaru Department of Control Engineering and Science Factory of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Department of Medical Informatics Institute of Biomedical Engineering Graz University of Technology Graz Austria

In this paper, statistical pattern recognition method based on AR model was introduced to discriminate the electroencephalograph (EEG) signals recorded during right and left motor imagery. And learning methods were investigated. Also, correlation between C3 and C4 signals were investigated, and thereby which AR (combine AR or multivariable AR) model must be used in each EEC recording method.

关键词： Pattern recognition Electroencephalography Electrodes Brain modeling Monitoring Artificial neural networks Feedback Biomedical engineering Laplace equations Vectors

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：