检索结果-内蒙古大学图书馆

International Conference on Pattern Recognition

作者： Song Wang Xiaoyan Zhu Yijiang Jin Key National Laboratory of Artificial Intelligence Technology and System Department of Computer Science and Technology Tsinghua University Beijing China

ISBN: (纸本)081867282X

For numeral recognition, when a single classifier cannot provide a decision which is 100 percent correct, multiple classifier should be able to achieve higher accuracy. This is because group decisions are generally better than any individual's. In this paper, as evidence, the differences between a ANN classifier and a traditional classifier are discussed. Based on this concept combination methods were developed, which can aggregate the decisions obtained from individual, derive the best final decisions. But different combination methods lead to different performance: accuracy, efficiency and so on. A ANN combining algorithm is developed. The authors analyze it and a voting algorithm within experiments. First experiments on 10000 samples of handwritten numerals have powerfully shown that the results of two different individual classifiers with same features are disparate in performance. Second experiment have discussed two disparate combination methods in contrast.

关键词： Neural networks Artificial neural networks Histograms Error analysis Artificial intelligence Computer science Aggregates Algorithm design and analysis Voting Character recognition

来源：评论

学校读者我要写书评

暂无评论

Research of intelligent mobile robot key techniques

Research of intelligent mobile robot key techniques

引用

IEEE International Conference on Industrial technology (ICIT 96)

作者： He, KZ Sun, HH Guo, MH Wang, H National Key Laboratory of Intelligent Technology and System Department of Computer Science and Technology Tsinghua University Beijing China

ISBN: (纸本)0780331044

In this paper, the intelligent mobile robot key techniques are introduced, such as architecture of intelligent mobile robot, path planning and its simulation techniques, transducer and multisensor fusion techniques, design and implement of intelligent mobile robot, vision subsystem and information reduced techniques, research of ''perception - action'' behavior and application of fuzzy control, etc.. A real outdoor mobile robot THMR-III (TsingHua Mobile Robot) that we developed has demonstrated road following, obstacle avoiding, branch road distinguishing and navigation, cross-country and target following at average speed 3.0 m/s.

关键词： mobile robots path planning intelligent control robot vision fuzzy control object recognition sensor fusion intelligent mobile robot path planning simulation multisensor fusion robot vision perception-action fuzzy control outdoor mobile robot THMR-III road following obstacle avoidance navigation road recognition

来源：评论

学校读者我要写书评

暂无评论

ROLE OF SIMULATION IN RAPID PROTOTYPING FOR CONCEPT DEVELOPMENT

引用

NAVAL ENGINEERS JOURNAL 1991年第3期103卷 204-211页

作者： KING, JF BARTON, DE J. Fred King:is the manager of the Advanced Technology Department for Unisys in Reston Virginia. He earned his Ph.D. in mathematics from the University of Houston in 1977. He has been principal investigator of research projects in knowledge engineering pattern recognition and heuristic problem-solving. Efforts include the development of a multi-temporal multispectral classifier for identifying graincrops using LANDSAT satellite imagery data for NASA. Also as a member of the research team for a NCI study with Baylor College of Medicine and NASA he helped develop techniques for detection of carcinoma using multispectral microphotometer scans of lung tissue. He established and became technical director of the AI Laboratory for Ford Aerospace where he developed expert scheduling modeling and knowledge acquisition systems for NASA. Since joining Unisys in 1985 he has led the development of object-oriented programming environments blackboard architectures data fusion techniques using neural networks and intelligent data base systems. Douglas E. Barton:is manager of Logistics Information Systems for Unisys in Reston Virginia. He earned his B.A. degree in computer science from the College of William and Mary in 1978 and did postgraduate work in London as a Drapers Company scholar. Since joining Unisys in 1981 his work has concentrated on program management and software engineering of large scale data base management systems and design and implementation of knowledge-based systems in planning and logistics. As chairman of the Logistics Data Subcommittee of the National Security Industrial Association (NSIA) he led an industry initiative which examined concepts in knowledge-based systems in military logistics. His responsibilities also include evaluation development and tailoring of software engineering standards and procedures for data base and knowledge-based systems. He is currently program manager of the Navigation Information Management System which provides support to the Fleet Ballistic Missile Progr

A valuable technique during concept development is rapid prototyping of software for key design components. This approach is particularly useful when the optimum design approach is not readily apparent or several known alternatives need to be rapidly evaluated. A problem inherent in rapid prototyping is the lack of a "target system" with which to interface. Some alternatives are to develop test driver libraries, integrate the prototype with an existing working simulator, or build one for the specific problem. This paper presents a unique approach to concept development using rapid prototyping for concept development and scenario-based simulation for concept verification. The rapid prototyping environment, derived from artificial intelligence technology, is based on a blackboard architecture. The rapid prototype simulation capability is provided through an object-oriented modeling environment. It is shown how both simulation and blackboard technologies are used collectively to rapidly gain insight into a tenacious problem. A specific example will be discussed where this approach was used to evolve the logic of a mission controller for an autonomous underwater vehicle.

关键词： Military Engineering

来源：评论

学校读者我要写书评

暂无评论

INTEGRATED SHIP MACHINERY systemS REVISITED

引用

NAVAL ENGINEERS JOURNAL 1989年第3期101卷 93-101页

作者： LEVEDAHL, WJ The author:is the assistant for technology in the Propulsion and Auxiliary Systems Department of the David Taylor Research Center (DTRC) Annapolis Md. After a World War II combat tour as a 15th AAF P-51 fighter pilot he received a B.S. in general engineering from MIT and was elected to Sigma Xi. He subsequently studied gas turbines and aeronautical engineering at ETH in Zurich and as a National Science Foundation Fellow he received his Doktor Ingenieur in applied thermodynamics at the TH Aachen Germany. He conducted basic research in combustion at the National Bureau of Standards and was head of advanced submarine reactor core design at the Knolls Atomic Power Laboratory (General Electric) during the 1950s. He then joined Combustion Engineering as chief project physicist in the design of central-station reactors. Subsequently he become manager of research at Martin Marietta involved largely in direct energy conversion for outer space. In 1970 he joined DTRC to establish the Superconductive Electric Propulsion Program and in 1974 assumed his present position. He has received the Distinguished Flying Cross and the Meritorious Civilian Service Award. Dr. Levedahl joined ASNE in 1978.

In the late 1980s, the world of U.S. Navy surface combatants is confronted with three new needs: to reduce ship signatures by factors of 10 to 1000; to provide ten-gigawatt power pulses to new combat systems; and to reduce the high cost of hull, mechanical and electrical (HM&E) systems by taking advantage of newly-available technology. These needs have caused an active response of the surface-ship community to the many apparent benefits of integrated machinery systems. The acoustic signature problem accelerated interest in integrated machinery systems. A substantial reduction in noise at cruise speeds requires the elimination of propeller cavitation and requires reductions in machinery noise. The use of contrarotating tractor propellers driven by bicoupled epicyclic gears and an alternating-current electric motor in a pod which faces directly into the flow stream is potentially capable of such performance; even better would be a contrarotating superconductive electric motor in the pod. No other concept seems even remotely competitive with these. The major reductions in installed power, fuel consumption, and reduced displacement reported in the April 1980 Naval Engineers Journal are retained. Large reductions in infrared signature and further reductions in fuel consumption are provided by intercooled recuperated gas turbines. An integrated electric propulsion system provides the opportunity to temporarily “borrow” power from the propulsion system and transform it into pulses for advanced combat systems. Not only the power of the turbines, but also the kinetic energy of the ship are available.

关键词： Ship Equipment

来源：评论

学校读者我要写书评

暂无评论

STUDIES OF A PLASMA PINCH SPACE ENGINE

引用

Journal of the American Society for Naval Engineers 1960年第4期72卷 715-725页

作者： GRANET, IRVING GUMAN, WILLIAM MCILROY, WILLIAM Irving Granet received his B.M.E. from The Cooper Union his M.M.E. from Polytechnic Institute of Brooklyn has taken Pre-Doctoral Studies at Polytechnic Institute of Brooklyn and is a graduate of the Oak Ridge School of Reactor Technology. He has worked in Republic's Plasma Propulsion Laboratory on nuclear propulsion systems space radiators thermodynamic power cycle considerations for generating electric power and system design and operation for space propulsion. He was formerly Director of Staff Engineering Nuclear Energy Department of Foster Wheeler Corporation where he directed engineering design and analysis for complete nuclear plants. Mr. Granet has taught thermodynamics and heat transfer at the Polytechnic Institute of Brooklyn and at present is Adjunct Assistant Professor of Engineering and Physics at Long Island University. He has published over 40 articles in the fields of thermodynamics applied mechanics heat transfer and nuclear energy. He is a member of the American Society of Mechanical Engineers National Society of Professional Engineers Pi Tau Sigma and Sigma Xi. He is a licensed Professional Engineer in the State of New York. Mr. Granet is listed in the 1960 edition of American Men of Science and is a reviewer for the American Chemical Society's technical publications. William J. Guman received degrees of B. Aero. E. M. Aero. E. from and has completed courses for Ph.D. Aero. E. at Rensselaer Polytechnic Institute. Since coming to Republic in 1959 Mr. Guman has been conducting theoretical and experimental studies on non-steady interactions and flow processes in plasma engine configurations. Mr. Guman was Assistant Professor at Rensselaer Polytechnic Institute lecturing on fluid mechanics aerodynamics performance and stability and conducting laboratory courses in experimental fluid dynamics and wind tunnel research. He also investigated flow induction and was head of Rensselaer's supersonic wind tunnel laboratory. Mr. Guman performed a theoretical analysis in experimental aerodynamic

来源：评论

学校读者我要写书评

暂无评论

Optimization considerations of electrical space engines

引用

Naval Engineers Journal 1962年第N 4期v 74卷 p749-756页

作者： Granet, I. Guman, W.J. Irving Granet received his B.M.E. from The Cooper Union: his M.M.E. from Polytechnic Institute of Brooklyn: has taken Pre-Doctoral Studies at Polytechnic Institute of Brooklyn: and is a graduate of the Oak Ridge School of Reactor Technology. He has worked in Republic's Plasma Propulsion Laboratory on nuclear propulsion systems space radiators thermodynamic power cycle considerations for generating electric power and system design and operation for space propulsion. He was formerly Director of Staff Engineering Nuclear Energy Department of Foster Wheeler Corporation where he directed engineering design and analysis for complete nuclear plants. Mr. Granet has taught thermodynamics and heat transfer at the Polytechnic Institute of Brooklyn and at present is Adjunct Assistant Professor of Engineering and Physics at Long Island University. He has published over 50 articles in the fields of thermodynamics applied mechanics heat transfer and nuclear energy. He is a member of the American Society of Mechanical Engineers National Society of Professional Engineers Pi Tau Sigma and Sigma Xi. He is a licensed Professional Engineer in the State of New York. Mr. Granet is listed in the 1960 edition of American Men of Science and is a reviewer for the American Chemical Society's technical publications. William J. Guman received degrees of B. Aero. E. M. Aero E. from and has completed courses for Ph.D. Aero. E. at Rensselaer Polytechnic Institute. He joined Republic's PlasmA Propulsion Laboratory in 1959 and there is conducting theoretical and experimental studies on non-steady wave interactions and flow processes in plasma engine configurations. Mr. Guman was Assistant Professor at Rensselaer Polytechnic Institute lecturing on fluid mechanics aerodynamics performance and stability and conducting laboratory courses in experimental fluid dynamics and wind tunnel research. He also investigated flow induction and was head of Rensselaer's supersonic wind tunnel laboratory. At the present he is also an Adjunct Assistan

Electrically powered pulsed plasma pinch engine was proposed earlier (see Engineering Index 1961 p 1447 and 1448);present work considers pertinent overall system performance parameters, and describes experimental methods of obtaining direct measurements of thrust and propellant mass consumption unique to low thrust space propulsion device;knowledge of thrust, rate of propellant consumption and input power are necessary to complete optimization study in practice.

关键词： Rocket engines

来源：评论

学校读者我要写书评

暂无评论

EXPERIMENTAL PROGRAM FOR A PLASMA PINCH SPACE ENGINE

引用

Journal of the American Society for Naval Engineers 1961年第4期73卷 745-761页

作者： GRANET, IRVING GUMAN, WILLIAM J. THE AUTHORS:Irving Granet received his B.M.E. from The Cooper Union his M.M.E. from Polytechnic Institute of Brooklyn has taken Pre-Doctoral Studies at Polytechnic Institute of Brooklyn and is a graduate of the Oak Ridge School of Reactor Technology. He has worked in Republic's Plasma Propulsion Laboratory on nuclear propulsion systems space radiators thermodynamic power cycle considerations for generating electric power and system design and operation for space propulsion. He was formerly Director of Staff Engineering Nuclear Energy Department of Foster Wheeler Corporation where he directed engineering design and analysis for complete nuclear plants. Mr. Granet has taught thermodynamics and heat transfer at the Polytechnic Institute of Brooklyn and at present is Adjunct Assistant Professor of Engineering and Physics at Long Island University. He has published over 40 articles in the fields of thermodynamics applied mechanics heat transfer and nuclear energy. He is a member of the American Society of Mechanical Engineers National Society of Professional Engineers Pi Tan Sigma and Sigma Xi. He is a licensed Professional Engineer in the State of New York. Mr. Granet is listed in the 1960 edition of American Men of Science and is a reviewer for the American Chemical Society's technical publications. William J. Guman received degrees of B. Aero. E. M. Aero E. from and has completed courses for PhD. Aero. E. at Rensselaer Polytechnic Institute. Since coming to Republic in 1959 Mr. Guman has been conducting theoretical and experimental studies on non-steady interactions and flow processes in plasma engine configurations. Mr. Guman was Assistant Professor at Rensselaer Polytechnic Institute lecturing on fluid mechanics aerodynamics performance and stability and conducting laboratory courses in experimental fluid dynamics and wind tunnel research. He also investigated flow induction and -was head of Rensselaer's supersonic wind tunnel laboratory. Mr. Guman performed a theoretical analysis in experimental

来源：评论

学校读者我要写书评

暂无评论

Research on WebAssembly Runtimes: A Survey

引用

ACM Transactions on Software Engineering and Methodology 1000年

作者： Yixuan Zhang Mugeng Liu Haoyu Wang Yun Ma Gang Huang Xuanzhe Liu Key Laboratory of High Confidence Software Technologies (Peking University) Ministry of Education School of Computer Science Peking University China Huazhong University of Science and Technology China Institute for Artificial Intelligence Peking University China School of Computer Science Peking University National Key Laboratory of Data Space Technology and System China

WebAssembly (abbreviated as Wasm) was initially introduced for the Web and quickly extended its reach into various domains beyond the Web. To create Wasm applications, developers can compile high-level programming languages into Wasm binaries or manually write the textual format of Wasm and translate it into Wasm binaries by the toolchain. Regardless of whether it is utilized within or outside the Web, the execution of Wasm binaries is supported by the Wasm runtime. Such a runtime provides a secure, memory-efficient, and sandboxed execution environment to execute Wasm binaries. This paper provides a comprehensive survey of research on Wasm runtimes with 103 collected research papers related to Wasm runtimes following the traditional systematic literature review process. It characterizes existing studies from two different angles, including the internal research of Wasm runtimes (Wasm runtime design, testing, and analysis) and the external research (applying Wasm runtimes to various domains). This paper also proposes future research directions about Wasm runtimes.

关键词： WebAssembly WebAssembly runtime WebAssembly system Interface

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：