检索结果-内蒙古大学图书馆

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Dajie Zhou Monique Frize Program of Systems Science University of Ottawa Ottawa ONT Canada Department of Systems and Computer Engineering Carleton University and the School of Information Technology and Engineering University of Ottawa Ottawa ONT Canada

Artificial neural networks can be trained to predict outcomes in a neonatal intensive care unit (NICU). This paper expands on past research and shows that neural networks trained by the maximum likelihood estimation criterion will approximate the `a posteriori probability' of NICU mortality. A gradient ascent method for the weight update of three-layer feed-forward neural networks was derived. The neural networks were trained on NICU data and the results were evaluated by performance measurement techniques, such as the Receiver Operating Characteristic Curve and the Hosmer-Lemeshow test. The resulting models applied as mortality prognostic screening tools are presented

关键词： Pediatrics Neural networks Artificial neural networks Maximum likelihood estimation Measurement Testing Feedforward systems Feedforward neural networks Resource management Cities and towns

来源：评论

学校读者我要写书评

暂无评论

Making Static Online Teaching Materials Be Flexible to Learners by Reconstructing Its Hypermedia Structures Automatically

Making Static Online Teaching Materials Be Flexible to Learn...

引用

International Conference on information technology Based Higher Education and Training, ITHET

作者： Athena Hsieh Rita Kuo Chang-Kai Hsu Maiga Chang Jia-Sheng Heh Department of Information and Computer Engineering Chung Yuan Christian University Chungli Taiwan Department of Electronic Engineering Chung Yuan Christian University Chungli Taiwan Program Office of National Science and Technology Chungli Taiwan

Many teachers and researchers put their teaching materials on the Internet for students to read in recent years. This sort of teaching materials could be seen as static because students can only follow the learning sequence made by teachers in advance. The goal of this paper is trying to develop a tool, K-Navi toolbar, to parse and rebuild teaching materials' hypermedia structures according to the concept relations and extracted rules automatically. K-Navi toolbar first uses the formal concept analysis (FCA) to parse the whole set of teaching materials and gets the embedded concept relations between each of two instructional documents; then uses the association rule methodology (ARM) to extract the rules from the concept lattices; and, finally rebuilds the hypermedia structure of the instructional document read by the student automatically. K-Navi toolbar adds related concept hyperlinks (or says links to other knowledge pieces) into the specific position on the instructional hypermedia document automatically when a student asks the document resource. A student then will be able to dig related knowledge pieces via these relevant hyperlinks.

关键词： Internet Association rules US Department of Transportation Lattices Electronic learning Navigation computer science education Councils Materials science and technology Electronic mail

来源：评论

学校读者我要写书评

暂无评论

Ontology Modelling and Engineering for Product Development Process Description and Integration

Ontology Modelling and Engineering for Product Development P...

引用

IEEE International Conference on Industrial Informatics (INDIN)

作者： Q. Z. Yang C. Y. Miao Y. Zhang R. Gay PLM Program Singapore Institute of Manufacturing Technology Singapore School of Computer Engineering Nanyang Technological University Singapore Computing and Information Systems Stansfield College Singapore School of EEE Nanyang Technological University Singapore

This paper presents an ontology modeling and engineering approach to semantic description and integration of product development processes. Using OWL and OWL-S, the proposed method formalizes the underlying semantic representations of the product development process in domain object ontologies and the generic problem solving structures in domain task ontologies. Both the domain object and task ontologies are incorporated in the OWL-S based application service ontologies to facilitate the semantic process description and semantic service discovery, composition in the integration of product development processes. The approach has been applied to the development of ontological models for the consumer product development process in a pilot project of a national research program in Singapore namely the Integrated Manufacturing and Service Systems (IMSS).

关键词： Ontologies Product development Terminology Collaboration OWL Standardization Resource description framework computer aided manufacturing Manufacturing processes Virtual manufacturing

来源：评论

学校读者我要写书评

暂无评论

A high - Speed reclosing operation with fault current limiter

A high - Speed reclosing operation with fault current limite...

引用

IASTED International Conference on Energy and Power Systems

作者： Fujita, Junya Iwatsuki, Toshiharu Yukita, Kazuto Hosoe, Tadashi Goto, Yasuyuki Ichiyanagi, Katsuhiro Hoshino, Yukio Yamamoto, Nobuyuki Sugimoto, Shigeyuki Avatchanakorn, Vichit Department of Electrical and Electronics Engineering Aichi Institute of Technology 1247 Yagusa Yachigusa Toyota Aichi 470-0392 Japan Research and Development Division Chubu Electric Power Co. Inc. 20-1 Kitasekiyama Ohdaka-cho Midori-ku Nagoya 459-8522 Aichi Japan Program in Computer Information Systems Assumption University ABAC Ramkhamhaeng Soi 24 Hua Mark Bangkok 10240 Thailand

ISBN: (纸本)0889865868

This paper proposes a new high-speed reclosing operation method to improve the stability in power system with the fault current limiter. From an angular velocity, a field system voltage and a phase of the generator, the proposed operation method calculates the optimum reclosing time domain. The fault current limiter is used the reactance type or the resistive type. The examination was carried out using the Inst. of Electrical Engineers of Japan one-machine infinite bus system model in order to demonstrate the effectiveness of the proposed method. The Impact Ver2.3 was used in the computer simulation.

关键词： Limiters

来源：评论

学校读者我要写书评

暂无评论

Applying knowledge map to diagnose students' misconception and provide suitable teaching materials

引用

WSEAS Transactions on computers 2006年第1期5卷 133-140页

作者： Li, Shao-Chun Chang, Jyh-Cheng Chang, Maiga Heh, Jia-Sheng Dept. of Information and Computer Engineering Chung-Yuan Christian Univ. 200 Chung-Pei Rd. Chung-Li 32023 Taiwan National Science and Technology Program for e-Learning in Taiwan 300 Jhongda Rd. Chung-Li 32001 Taiwan

Students in the web-based e-learning environment might have their own learning paths due to the structure of the world-wide web. Students can choose suitable learning materials according to their different learning style. There are many researches about learning diagnosis in distance education and the main objective of these researches is to improve the learning effects of students. This research proposes a diagnosis mechanism based on the Knowledge Map and implements a feedback system in order to provide the remedy teaching materials in sequence.

关键词： Knowledge representation

来源：评论

学校读者我要写书评

暂无评论

Managing Distributed Denial-Of-Service Attacks

引用

EDPACS 2006年第5期30卷 7-20页

作者： Tommie Singleton Ph.D., CPA, CISA, CITP Professor of accounting and computer information systems (CIS) at the University of North Alabama (UNA) and director of the forensic accounting program. Prior to obtaining his doctorate Singleton was president of a small value-added dealer of accounting information systems and microcomputers for 11 years. Over the past decade Singleton has published numerous articles in journals related to information technology or accounting and has presented numerous papers at regional national and international conferences.

For electronic commerce (E-commerce) entities, security incidents continue to be the most significant risk (in terms of costs) associated with their businesses. Distributed denial-of-service (DDoS) attacks have a debilitating effect on commercial transactions because commerce entities cannot do any legitimate business. Although it is impossible to completely stop all DDoS attacks, there are some tools to assist auditors and security professionals in the management of this critical threat. This article attempts to provide information, tools, and techniques that can minimize the DDoS risk, to the degree possible.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Is Security Issues in Telecommuting

引用

EDPACS 2006年第4期26卷 1-8页

作者： Lisa Carnahan Barbara Guttman A computer scientist in the Information Technology Laboratory at the U.S. National Institute of Standards and Technology in Gaithersburg MD. Currently she is responsible for researching and developing test methods for the correct implementation of software standards. Prior to this assignment Carnahan created the Institute's Cryptographic Module Validation Program. She has written extensively on various IS security topics. A staff member of the Computer Security Division in the Information Technology Laboratory at the U.S. National Institute of Standards and Technology in Gaithersburg MD. Guttman specializes in policy and has written and co-written several Institute publications including the Computer Security Handbook for which she received the U.S. Department of Commerce Bronze Medal.

Telecommuting is the use of telecommunication to create an office that is situated away from the established office, that is, the fixed physical office location. This article discusses the IS security issues related to telecommuting. It also proposes solutions that may help organizations manage the telecommuting environment more effectively.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Mobile path loss prediction model for forest areas using MIMO fuzzy logic system

引用

WSEAS Transactions on Communications 2006年第9期5卷 1807-1812页

作者： Phaiboon, Supachai Phokharatkul, Pisit Kittitummawong, Piti Somkuarnpanit, Suripon Electrical Engineering Department Faculty of Engineering Mahidol University Phutthamonthon Nakornprathom 73170 Thailand Computer Engineering Department Faculty of Engineering Mahidol University Phutthamonthon Nakornprathom 73170 Thailand Information Technology Management Program Faculty of Engineering Mahidol University Phutthamonthon Nakornprathom 73170 Thailand Electronic Department Faculty of Engineer KinkMonkul Institute of Technology Ladkrabang Ladkrabang Bangkok Thailand

This paper proposes a method to predic mobile path loss in forests using MIMO fuzzy logic system. The multi-input was classified into seven input parameters defined as, X1 is number of trees/m2 and X2 to X7 are tree structure parameters. These crisp inputs are classified by fuzzifier to fuzzy sets and then inferenced using fuzzy linguistic rule base into multi - output path loss slopes via de-fuzzifier. For this study, we classified the terrains into high-, medium-, low- density and grass area and used the simple linguistic rules for prediction the path loss slopes. We performed measurements in different forest densities at a frequency of 1.8 GHz with base station antenna height in a range of 3, 4, and 5 m above ground while the receiving antenna height was fixed at 1.8 m above ground. The results have shown that fuzzy logic approach provides more accurate prediction of path loss slopes than that of conventional empirical mathematic model. The proposed models will be useful for the local wireless network and micro-cell design of mobile communication systems in forests.

关键词： Signal interference

来源：评论

学校读者我要写书评

暂无评论

Real-time organ motion tracking and fast image registration system for MRI-guided surgery

引用

Systems and computers in Japan 2006年第1期37卷 83-92页

作者： Tokuda, Junichi Hirano, Masaya Tsukamoto, Tetsuji Dohi, Takeyoshi Hata, Nobuhiko Graduate School of Information Science and Technology University of Tokyo Tokyo 113-8656 Japan GE Yokogawa Medical Systems Ltd. Hino 191-8503 Japan International Society for Computer-Aided Surgery Japan Society for Computer-Aided Surgery Japan Society for Magnetic Resonance in Medicine GE Yokogawa Medical Systems Ltd. Imaging Application Tech. Center MR Group R and D Laboratory Technology Center GE Yokogawa Medical Systems Ltd. Society for Magnetic Resonance in Medicine Graduate School of Information Science and Technology Society for Life Support Technology Japan Society for Organ Preservation Biology and Medicine Society for Precision Engineering Society for Medical Image Computing and Computer Assisted Intervention International Union for Physics and Engineering Sciences in Medicine JSMEBE Japan Society for Life Assistance Technology Brigham and Women's Hospital Harvard Medical School MR Therapy Program

The advantage of magnetic resonance imaging (MRI)-guided surgery, in which MR images taken during surgery are used to guide the surgery, has been recognized recently. However, there is a problem, due to long imaging time of MRI, that it is difficult to capture the respiratory organ motion. It is often a constraint that the patient must hold his or her breath, especially in the treatment of the abdominal region. Consequently, this paper proposes a method of eliminating this constraint in MRI-guided surgery by real-time monitoring of the movement of the organ involved in the surgery by means of the signal derived from MRI. Specifically, the navigator echo is extracted in imaging during surgery. The movement of the organ involved in surgery is detected on the basis of the change in the calculated projection profile, and the results are presented to the surgeon. In this study, the procedure is built into a 1.5-T clinical MRI system. The feasibility of the proposed system was examined under clinical conditions by evaluating its accuracy and delay in a phantom experiment, and also in an in vivo experiment on the liver of a volunteer. The results are reported in this paper. © 2005 Wiley Periodicals, Inc.

关键词： Motion estimation

来源：评论

学校读者我要写书评

暂无评论

Meeting the information Assurance Crisis in the U.S. Now

引用

EDPACS 2006年第6期28卷 1-14页

作者： Corey Schou Deborah Frincke Charles Reynolds James Frost The Associate Dean of Information Systems Programs at Idaho State University (ISU) in Pocatello and the director of the Center for Decision Support. Currently he serves as the Chair of the National Colloquium on Information System Security Education. Schou also directs the ISU National Center of Excellence in Information Assurance Education and the ISU Technology Innovation Center. Contact Corey Schou one of the authors of this article and the Chair of the NCISSE by email at Schou@*** for help in finding additional ways to address the issues raised in this article. A member of the University of Idaho College of Engineering faculty. She graduated from the University of California at Davis. Frincke is the co-director and co-founder of the university's Center for Secure and Dependable Software (CSDS). She was the program chair for the 2nd International Workshop on Recent Advances in Intrusion Detection (RAID). A professor of Computer Science at the College of Integrated Science and Technology at James Madison University in Harrisonburg Virginia. He holds a Ph.D. in computer science from the University of Texas at Austin and a BA in philosophy from the University of Houston. Reynolds is the Director of Information System Security Education at James Madison University. Since 1997 Reynolds has led the development of the first remote Internet-based curriculum that leads to an M.S. degree in computer science with a concentration in information security. Thus far 160 students have completed this program. A professor of computer information systems at Idaho State University and the manager of its Simplot Decision Support Center.

T he only difference etween evolution and revolution is the speed at which each occurs.

关键词：

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：