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2010 International Conference on System science and Engineering, ICSSE 2010

作者： Mahmoud, H. Ben Ketata, R. Romdhane, T. Ben Ahmed, S. Ben Dept. of Physics and Instrwnentation Engineering INSAT: National Institute of Applied Science and Technology Tunis Tunisia Dept. of Physics and Instrwnentation Engineering ICOS: Research Unit on Intelligent Control Design and Optimization of Complex System Tunis Tunisia Dept. of Physics and Instrumentation Engineering MOSIC Research Unit on Methods and Tools for Complex Computer Systems Tunis Tunisia

ISBN: (纸本)9781424464746

This paper presents a decision support tool for the effectiveness of a Quality Management System (QMS) in a company. To develop this tool, a new approach PAHP based on the combination of the Pareto Optimality Concept (Poq and the Analytical Hierarchy Process (AHP). This approach is used to model and optimize the multi-objective function of real company which presents a major problem for controlling the quality level of production. © 2010 IEEE.

关键词： Multiobjective optimization

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Research on computer immune system based on intrusion tolerance

Research on computer immune system based on intrusion tolera...

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International Seminar on Future Information Technology and Management Engineering, FITME

作者： Jiaomin Liu Yongzheng Li Yan Zhao Lili Wang Zhengyan Yang Yongguo Wang College of Information Science and Engineering University of Yanshan Qinhuangdao Hebei China College of Computer Science and Engineering Hebei University of Technology Tianjin China Department of The Teaching Affairs College of Hebei Chemical and Pharmaceutical Shijiazhuang Hebei China

When the body is intruded, there is a congenital immune process to find and reduce the damage as quickly as possible. This is an important recovery character for the biology immune system. A model that simulates the biology's congenital immunity is introduced in the computer immune system. It has two basal agents, Damage Detector Agent and Congenital Response Agent. Damage Detector Agent finds intrusion and releases dangerous signal to excited Congenital Response Agent. And it uses a Dynamic Semi-Active Replication technology to ensure the system can work. All this work can improve the system's robustness that it can supply the basic services when it's intruded.

关键词： Immune system Skin Switches

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Support Vector Machine Prediction Model Based on ROC Technology and Application

Support Vector Machine Prediction Model Based on ROC Technol...

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International Conference on E-Product E-Service and E-Entertainment

作者： Hongmao Chen Jian Xu Xiaoyan Lu Institute of Information Engineering East China University of Science and Technology Nanchang China Institute of Mechanical and Electronic East China University of Science and Technology Nanchang China Department of Computer Teaching Shanxi Medical University Taiyuan China

ISBN: (纸本)9781424471591

It is deficiency to use accuracy as a measurement to evaluate model classifying ability. This paper proposes a measurement method which uses the area under the ROC curve, or AUC value, to evaluate the performance of the model. Furthermore, applying cross validation and grid-search methods, through designed algorithms, to build an optimization of support vector machines medical prediction model. The model was applied to diagnosis of predicting of coronary heart disease. The results show that the model has the characteristics of global optimization and easy to implement.

关键词： Support vector machines Classification algorithms Diseases Kernel Optimization Predictive models Artificial neural networks

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Getting granular on Twitter: Tweets from a conference and their limited usefulness for non-participants

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IFIP Advances in Information and Communication Technology 2010年 324卷 102-113页

作者： Ebner, Martin Mühlburger, Herbert Schaffert, Sandra Schiefner, Mandy Reinhardt, Wolfgang Wheeler, Steve Social Learning Computer and Information Services Graz University of Technology Graz Austria Salzburg Research Forschungsgesellschaft Salzburg Austria Center for University Teaching and Learning University of Zurich Zurich Switzerland Computer Science Education Group University of Paderborn Paderborn Germany University of Plymouth Plymouth United Kingdom

ISBN: (纸本)9783642153778

The use of microblogging applications (especially Twitter) is becoming increasingly commonplace in a variety of settings. Today, active conference participants can post messages on microblogging platforms to exchange information quickly and in real-time. Recent research work was based on quantitative analyses in terms of the number of tweets or active Twitter users within a specific time period. In this paper, we examine the content of the contributions and aim to analyze how useful posts are for the "listening" Internet auditorium. It can be shown that only a few microblogs are of interest for non-participants of the specific event and that meaningful usage of a microblogging application requires greater care than previously anticipated. © IFIP International Federation for Information Processing 2010.

关键词： Social networking (online)

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Average prior distribution of all possible probability density distributions

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Advances in Intelligent and Soft Computing 2010年 80卷 181-190页

作者： Piegat, Andrzej Landowski, Marek Faculty of Computer Science and Information Systems West Pomeranian University of Technology Zolnierska 49 Szczecin 71-210 Poland Quantitative Methods Institute Maritime University of Szczecin Waly Chrobrego 1-2 Szczecin 70-500 Poland

ISBN: (纸本)9783642149887

Bayes' rule is universally applied in artificial intelligence and especially in Bayes reasoning, Bayes networks, in decision-making, in generating rules for probabilistic knowledge bases. However, its application requires knowledge about a priori distribution of probability or probability density that frequently is not given. Then, to find at least an approximate solution to a problem, the uniform a priori distribution is used. Do we always have to use this distribution? The paper shows that it is not true. The uniform prior should only be used if there is no knowledge about the real distribution. If however, we possess certain qualitative knowledge, e.g. that the real distribution is the unimodal one, or that its expected value is less than 0.5, then we can use this knowledge and apply a priori distribution being the average distribution of all possible unimodal distributions, instead of the uniform distribution. As a result we will usually get better approximation of the problem solution and will avoid large approximation errors. The paper explains the concept of average distributions and shows how they can be determined with a special method of granulation diminution of elementary events and probability. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Decision making

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A non-linear approach to solving linear algorithmic problems

A non-linear approach to solving linear algorithmic problems

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Frontiers in Education (FIE) Conference

作者： Orna Muller Bruria Haberman Software Engineering Department Teaching & Learning Center Ort Braude College of Engineering Karmiel Israel Computer Science Department Holon Institute of Technology Israel CS Academia & Industry program for talented high-school Davidson Institute of Science Education Weizmann Institute of Science Rehovot Israel

Solving algorithmic problems and implementing them in code is a major theme in introductory computer science courses. Problems related to string manipulation are common and of great importance in various domains. In the context of computer science education, solving algorithmic problems of this type may be very challenging for novices, even for the more competent students. Analysis of novice students' solutions to a specific class of problems dealing with string manipulation revealed that a widespread intuitive and non-linear approach was used to solve these problems, which led to cumbersome and erroneous solutions. On the other hand, a straightforward linear approach that leads to shorter and more elegant solutions is uncommon. Uncovering students' common and unsatisfactory approaches in problem solving have significant implications on instruction.

关键词： Problem-solving Taxonomy Programming profession Algorithm design and analysis Syntactics

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A Simulation Based Verification Method for Elevator Traffic Planning

A Simulation Based Verification Method for Elevator Traffic ...

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The 2010 International Conference on computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

作者： Yang Zhenshan Zhang Yunli College of Information Science and Engineering Bohai University Jinzhou P.R.China Computer Teaching and Research Section Liaoning Medical University Jinzhou P.R.China

Elevator traffic systems are the main vertical transportation facilities in high-rise buildings which play a vital role in modern life. A well-designed elevator traffic system should provide passengers with both sufficient quantity and satisfactory quality of service. Considering that the classical elevator traffic planning theory focuses, mainly, on the quantity of service, ignoring the quality of service, a simulation based verification method for elevator traffic planning is proposed, in which the object oriented discrete event driven technique, based on an improved multi-server batch service queuing discipline, is employed to describe the dynamic behaviors of both passengers and elevators to evaluate the service level of elevator traffic system. The initial configuring results by the classical calculation model are adjusted on simulation to meet both the expected passenger handling capacities and the expected service level. The proposed method perfects the classical elevator traffic planning theory which shows better results than the classical methods.

关键词： elevator traffic planning service quality multiserver batch service event driven average waiting time

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A Multi-Stage Stochastic Electricity Portfolio Model with Forwards Contracts

A Multi-Stage Stochastic Electricity Portfolio Model with Fo...

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International Conference on Management and Service science, MASS

作者： Rosella Giacometti Maria Teresa Vespucci Marida Bertocchi Department of Mathematics Statistics Computer science and Applications University of Bergamo Bergamo Italy Department of Information Technology and Mathematical Methods University of Bergamo Bergamo Italy Universita degli Studi di Bergamo Bergamo Lombardia IT

A stochastic multi-stage portfolio model for a hydropower producer operating in a competitive electricity market is proposed. The portfolio includes its own production and a set of forward contracts for future delivery or purchase of electricity to hedge against risks. The goal of using such a model is to maximise the profit of the producer and reduce the economic risks connected to the fact that energy spot and forward prices are highly volatile. Our findings show that the use of forward contracts for hedging purposes results in a risk reduction and in a more efficient use of the hydroplant, taking advantage of the possibility of pumping water and ending up with a higher final value of the reservoi.

关键词： Reservoirs Stochastic processes Forward contracts Mathematical model Electricity Biological system modeling

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Excel in mathematics: Applications of calculus

Excel in mathematics: Applications of calculus

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2010 ASEE Annual Conference and Exposition

作者： Young, Cynthia Georgiopoulos, Michael Crouse, Tace Geiger, Cherie Islas, Alvaro Hagen, Scott Dagley-Falls, Melissa Ramsey, Patricia Lancey, Patrice Department of Mathematics College of Sciences UCF United States School of Electrical Engineering and Computer Science UCF United States Machine Learning Laboratory UCF United States Faculty Center for Teaching and Learning University of Central Florida United States Department of Chemistry College of Sciences UCF United States Civil Environmental and Construction Department UCF United States Coastal Hydroscience Analysis Modeling and Predictive Simulations Laboratory UCF United States Academic Affairs College of Engineering and Computer Science UCF United States Institutional Research University of Central Florida United States Department of Operational Excellence and Assessment Support University of Central Florida United States

Nationally only 40% of the incoming freshmen STEM majors are successful in earning a STEM degree [1]. The University of Central Florida (UCF) EXCEL program is an NSF funded STEP (science, Technology, Engineering and Mathematics Talent Expansion Program) whose goal is to increase the number of UCF STEM graduates. One of the activities that EXCEL has identified as essential in retaining students in science and engineering disciplines is the development and teaching of special courses at the freshman level, called Applications of Calculus I and Applications of Calculus II, or Apps I and Apps II, respectively. In Apps I and II, science and engineering professors are asked to lecture twice, as guest lectures, and to demonstrate to students where calculus topics appear in upper level science and engineering classes as well as where faculty use calculus in their research programs. This paper outlines the process used in producing the educational materials for Apps I and II courses (textbook, presentations slides, in-class homework assignments, demos) and it also discusses the assessment results pertaining to this specific EXCEL activity. © American Society for Engineering Education, 2010.

关键词： Calculations

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Behavioral modeling of the dominant dynamics in input-output transfer of linear(ized) circuits

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Procedia computer science 2010年第1期1卷 347-355页

作者： T.G.J. Beelen E.J.W. ter Maten H.J. Sihaloho S.J.L. van Eijndhoven Semiconductors / Central R&D / Physical Design Methods High Tech Campus 46-210 5656 AE Eindhoven the Netherlands Eindhoven University of Technology Mathematics and Computer Science Mathematics for Industry P.O.Box 513 5600 MB Eindhoven the Netherlands

We present a powerful procedure for determining both the dominant dynamics of the input-output transfer and the corresponding most influential circuit parameters of a linear(ized) circuit. The procedure consists of several steps in which a specific (sub)problem is solved and its solution is used in the next step. We combine regression tools techniques and trade off analysis with recent techniques from Model Order Reduction.

关键词： Regression Design of experiments Symbolic model Dominant poles

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