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26th International Conference On Machine Learning, ICML 2009

作者： Busetto, Alberto Giovanni Ong, Cheng Soon Buhmann, Joachim M. Department of Computer Science ETH Zurich Universitätstr. 6 8092 Zurich Switzerland Competence Center for Systems Physiology and Metabolic Diseases Schafmattst. 18 8093 Zurich Switzerland Life Science Zurich PhD Program on Systems Biology of Complex Diseases Switzerland

ISBN: (纸本)9781605585161

This paper addresses the problem of active model selection for nonlinear dynamical systems. We propose a novel learning approach that selects the most informative subset of time-dependent variables for the purpose of Bayesian model inference. The model selection criterion maximizes the expected Kullback-Leibler divergence between the prior and the posterior probabilities over the models. The proposed strategy generalizes the standard D-optimal design, which is obtained from a uniform prior with Gaussian noise. In addition, our approach allows us to determine an information halting criterion for model identification. We illustrate the benefits of our approach by differentiating between 18 published biochemical models of the TOR signaling pathway, a model selection problem in systems biology. By generating pivotal selection experiments, our strategy outperforms the standard A-optimal, D-optimal and E-optimal sequential design techniques.

关键词： Nonlinear dynamical systems

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Redesigning Courses for the World Wide Web

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Journal of Midwifery & Women's Health 2010年第6期48卷

作者： Dr. Katherine Camacho Carr CNM, phd Cynthia L. Farley CNM, phd Katherine Camacho Carr CNM PhD FACNM is an Associate Professor at Seattle University School of Nursing and a certified nurse-midwife practicing in Seattle WA at Highline Midwifery & Women's Health. She has been a faculty member of several midwifery education programs over the past 12 years focusing on Web-based and distance learning. Cynthia L. Farley CNM PhD is a certified nurse-midwife and Director of Greene Midwifery Care Fairborn OH. She is also faculty in Philadelphia University's Master's of Science in Midwifery program an asynchronous distributive computer-based curriculum.

The use of computer-based instructional technologies has become almost ubiquitous in education, including health professions education. In addition, clinical practice requires the use of digital information, networking, and continued learning. Faculty, students, and clinicians must be prepared to use computer-based technologies and telecommunications. Many faculty members in the health professions need assistance with the transfer of traditional (campus-based) courses or course material to the World Wide Web. This article presents the instructional design and pedagogical aspects of redesigning a traditional campus-based course for the World Wide Web. Specific steps and a template are identified. The development of a virtual community of learners is also discussed as a critical element of on-line teaching and learning.

关键词： educational technology nursing education distance education computer-mediated instruction

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Technology as excuse for questionable ethics

Technology as excuse for questionable ethics

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作者： Mowshowitz, Abbe Department of Computer Science The City College of New York 138th Street New York NY 10031 United States PhD Program in Computer Science The City University of New York Graduate Center 365 Fifth Avenue New York NY 10016 United States

By endowing technology with the attributes of autonomous agency, human beings are ethically sidelined. Individuals are relieved of responsibility. The suggestion of being in the grip of irresistible forces provides an excuse for rejecting responsibility for oneself and others, thus creating conditions for inappropriate or antisocial behavior. It also impedes the search for solutions to pressing social problems associated with applications of technology. Failure to assign and accept responsibility for decisions to deploy "conventional" technology will inevitably impede our ability to deal with the social and ethical challenges of robotics. © Springer-Verlag London Limited 2007.

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Belief update using graphs

Belief update using graphs

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21th International Florida Artificial Intelligence Research Society Conference, FLAIRS-21

作者： Georgatos, Konstantinos Department of Mathematics and Computer Science John Jay College of Criminal Justice CUNY 445 West 59th Street New York NY 10019 United States PhD Program in Computer Science Graduate Center CUNY 365 Fifth Avenue New York NY 10016 United States

ISBN: (纸本)9781577353652

The purpose of this paper is to introduce a form of update based on the minimization of the geodesic distance on a graph. We provide a characterization of this class using set-theoretic operators and show that such operators bijectively correspond to geodesic metrics. As distance is generated by distinguishability, our framework is appropriate in contexts where distance is generated by threshold, and therefore, when measurement is erroneous. Copyright © 2008, Association for the Advancement of Artificial Intelligence (***). All rights reserved.

关键词： Geodesy

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Digital data security and hiding on virtual reality VDO 3DGIS-Map

Digital data security and hiding on virtual reality VDO 3DGI...

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IEEE International Conference on Management of Innovation and Technology, ICMIT

作者： Katanyoo Klubsuwan Surasak Mungsing PHD-Information Technology Sripatum University Bangkok Thailand Computer Science Program Faculty of Informatics Sripatum University Bangkok Thailand

Todaypsilas Information Technology supports varieties of e-commerce, in particular on-demand services such as news, message, seminar and presentation speech to message, and 3D Video GIS. Each service can have value-added by embedding other hidden-service within the main service, hence promoting value-added to the service. The value-added services are accomplished by using the technique of Multiple Keys and Messages Embedding (MKME), which hidden-contents can be retrieved only by applying the correct corresponding decryption keys This paper presents the design and algorithm for multiple keys and messages embedding on 3D Video GIS, based on Steganography concept. The quality of the resulting product was also investigated. The main data used is geospatial video, which is primarily used by the elderly and disables people so that they can feel the surroundings on their desktop while sitting at home.

关键词： Pixel Three dimensional displays Discrete cosine transforms Geographic information systems Security Image color analysis Cryptography

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An incremental approach for niching and building block detection via clustering

An incremental approach for niching and building block detec...

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7th International Conference on Intelligent Systems Design and Applications, ISDA'07

作者： Emmendorfer, Leonardo Ramos Pozo, Aurora Trinidad Ramirez Numerical Methods in Engineering PhD Program Federal University of Paraná Brazil Department of Computer Science Federal University of Paraná Brazil

ISBN: (纸本)0769529763

Diversity preservation has already been established as an important concern for evolutionary computation. Clustering techniques were, among others, successfully applied to this purpose. Another important aspect of the research on evolutionary computation is related to linkage learning - the detection of the problem structure avoiding disruption of building blocks when new individuals are generated. This paper presents a novel approach which is a new estimation of distribution algorithm (EDA) where clustering plays two roles: diversity preservation and linkage learning. Initial empirical investigations illustrate the behavior of the algorithm when solving two benchmark optimization problems. © 2007 IEEE.

关键词： Evolutionary algorithms

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A weighted k-nearest neighbor method for gene ontology based protein function prediction

A weighted k-nearest neighbor method for gene ontology based...

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2nd International Multi-Symposiums on computer and Computational sciences 2007, IMSCCS'07

作者： Kharsikar, Saket Mugler, Dale Sheffer, Daniel Moore, Francisco Duan, Zhong-Hui Department of Biomedical Engineering University of Akron Akron OH 44236 United States Department of Theoretical and Applied Mathematics University of Akron Akron OH 44236 United States Integrated Bioscience PhD Program University of Akron Akron OH 44236 United States Department of Biology University of Akron Akron OH 44236 United States Department of Computer Science University of Akron Akron OH 44236 United States

ISBN: (纸本)0769530397

Numerous genome projects have produced a large and ever increasing amount of genomic sequence data. However, the biological functions of many proteins encoded by the sequences remain unknown. Protein function annotation and prediction become an essential and challenging task of post-genomic research. In this paper, we present an automated protein function prediction system based on a set of proteins of known biological functions. The functions of the proteins are characterized with gene ontology (GO) annotations. The prediction system uses a novel measure to calculate the pair-wise overall similarity between protein sequences. The protein function prediction is performed based on the GO annotations of similar sequences using a weighted k-nearest neighbor method. We show the prediction accuracies obtained using the model organism yeast (Sacchyromyces cerevisiae). The results indicate that the weighted k-nearest neighbor method significantly outperforms the regular k-nearest neighbor method for protein molecular function prediction. © 2007 IEEE.

关键词： Proteins

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Certified computation of the sign of a matrix determinant 99

Certified computation of the sign of a matrix determinant

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Proceedings of the tenth annual ACM-SIAM symposium on Discrete algorithms

作者： Victor Y. Pan Yanqiang Yu Department of Mathematics and Computer Science Lehman College CUNY Bronx NY PhD Program in Computer Science CUNY New York NY

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Applying fuzzy functions and sequential coordination to optimization of machinery arrangement and pipe routing

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NAVAL ENGINEERS JOURNAL 1998年第6期110卷 43-54页

作者： Wu, BC Young, GS Schmidt, W Choppella, K Dr. Bi-Chu Wu:received a PhD in Mechanical Engineering from the University of Maryland College Park in 1991. She has worked on projects involving naval architecture design optimization solid mechanics and database development. Presently a senwr engineer with Angle Incorporated Dr Wu's research interests are in design optimization and fuzzy logic applications. Dr. Gin-Shu Young: a senior engineer with Angle Incorporated holds a PhD in Mechanical Engineering from the University of Maryland College Park. As a guest researcher with National Institute of Standards and Technologies from 1990 to 1993 he worked on vision-based navigation for autonomous vehicles. His experience also includes applications of optimization fuzzy logic neural network and genetic algorithm methods to engineering system design Mr. William Schmidt:co-founded Angle Incorporated in 1990 and has served as Vice PresidentlChiefScientist during this tame. He holds a B.Sc. in Applied Science from the Naval Acadt?my and an M.Sc. in Physics from the Naval Post Graduate School. He has cner 20 years experience in technical leadership material and personnel management. He has led the application of computer aided design (CAD) and Product Model Information Exchange to the shipbuilding industry. His experience also includes leading the amlication of model based operational analysis to support the Live Fire Test Program for DDG 51 Class Destroyers. Mr. Krishna M. Choppella:is a Sofware Engineer at Eidea Laboratories Incotporated where he works on componentbased distributed enterpvise frameworks. He has been involved in creating data analysis tools for the US Nay by integrating CAD modeis databases and graphical front ends. His work in the Masters degree program in Mechanical Engineering at the University of Texas at Austin was in di0ddase.r spectroscopy of combustion products in porous-matri burners. He received his Bachelors degree in Electrical Engineering in India. He was a Research Associate at the Centre for Laser Technology and Project Engi

Ship design is often multidisciplinary involving several design elements with various types of objectives and constraints (O/C) some easily described as mathematical formulas, others better modeled as descriptive assertions. This paper describes a method based on fuzzy functions and an integrated performance index to model O/C using descriptive assertions to be used with mathematical formulas in optimization. Another issue addressed in this paper concerns the coordination of design elements when sequentially coupled, that is, when one leads the other and the performance of the follower depends greatly on the design of the leader. Based on neuro-fuzzy techniques, the method described here coordinates and optimizes sequentially coupled elements. The two methods are applied to machinery arrangement (MA) and pipe routing (PR). Preliminary models for optimization of MA and PR are described considering convenience, producibility: engine room size, interference and location as factors in the O/C set. Some test results from MA/PR applications are presented and discussed. The methods are generic and can be extended to other elements in ship design. They are mutually independent and may be used separately Two advantages of their use are an improvement in overall performance and a reduction in the need for redesign of elements.

关键词： Optimization

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ANALYSIS AND CAD TECHNIQUES FOR PERIODIC LEAKY-WAVE PRINTED ANTENNAS - NUMERICAL AND EXPERIMENTAL RESULTS

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INTERNATIONAL JOURNAL OF MICROWAVE AND MILLIMETER-WAVE computer-AIDED ENGINEERING 1994年第1期4卷 88-99页

作者： ENCINAR, JA Department of Electromagnetism and Circuit Theory Universidad Politécnica de Madrid 28040 Madrid Spain Jose A. Encinar was born in Madrid Spain in 1957. He received the “Ingeniero de Telecomunicacion” and PhD degrees both from the Universidad PolitCcnica de Madrid in 1979 and 1985 respectively. Starting in January of 1980 he was with the Grupo de Electromagnetismo Aplicad0 y Microondas at the Universidad Politecnica de Madrid as a teaching and research assistant from 1980 to 1982 and as an assistant professor from 1983 to 1986. In 1986 he became associate professor. From February to October of 1987 he was at Polytechnic University Brooklyn NY as a postdoctoral fellow of the NATO Science Program. He is currently a professor in the Electromagnetism and Circuit Theory Department at the Universidad Politecnica de Madrid. His research interests include analytical and computer-aided techniques for solving electromagnetic problems in waveguide structures and radiating systems.

Theoretical and experimental results are presented for a printed leaky-wave antenna. Mode-matching and EDC methods have been used to analyze the antenna and to design the prototypes. Reflection, transmission, and radiation measurements have been compared with theoretical predictions with good agreement. A CAD procedure is proposed to reduce the sidelobe level by tapering width and separation of metal strips. (C) 1994 John Wiley & Sons, Inc.

关键词： Antennas

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