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IEEE International Geoscience and Remote Sensing Symposium

作者： Luca Pulvirenti Marco Chini Frank S. Marzano Nazzareno Pierdicca S. Mori Leila Guerriero Giorgio Boni Laura Candela Dept. Information Engineering Electronics and Telecommunications Sapienza University of Rome Istituto Nazionale di Geofisica e Vulcanologia Dept. Computer Science Systems and Production TorVergata University of Rome CIMA Research Foundation Italian Space Agency Earth Observation Unit

ISBN: (纸本)9781467311601

In this work, an automatic method to distinguish, in X-band SAR images such as those supplied by Cosmo-SkyMed, water surfaces (either flooded, or permanent water bodies) from artifacts due to heavy precipitation, is designed to improve flood detection accuracy. The method, mainly based on the fuzzy logic, consists of two main steps, i.e., the detection of low backscatter areas and the classification of each dark object present in the considered SAR image. The algorithm uses ancillary data, such as a local incidence angle map and a Land Cover map. Through the fuzzy logic, it integrates different rules for the detection of low backscatter areas (based on the standard deviation of the backscattering coefficient and on a well-established radar backscattering model), as well as different rules for the classification of the low backscatter (dark) areas (i.e., to distinguish water surfaces from artifacts) based on their geometrical and shape features and on both land cover and local incidence angle.

关键词： Floods Rain COSMO-SkyMed SAR

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Medium term effects of a ketogenic diet and a Mediterranean diet on resting energy expenditure and respiratory ratio

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BMC Proceedings 2012年第3期6卷 1-2页

作者： Antonio Paoli Andrea Parmagnani Antonino Bianco Alessandra Lodi Lorenzo Cenci Biomedical Engineering Laboratory Institute of Communication and Computer Systems National Technical University of Athens Athens Greece Dept. of Sports and Exercise Science (DISMOT) University of Palermo Italy Pharmaceutical and Chemistry and Technologies University of Padova Italy Tisanoreica Research Center Lonigo Vicenza Italy

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Extracting BI-RADS features from Portuguese clinical texts

Extracting BI-RADS features from Portuguese clinical texts

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2012 IEEE International Conference on Bioinformatics and Biomedicine, BIBM2012

作者： Nassif, Houssam Cunha, Filipe Moreira, Inês C. Cruz-Correia, Ricardo Sousa, Eliana Page, David Burnside, Elizabeth Dutra, Inês University of Wisconsin Madison WI United States AroundKnowledge Porto Portugal Centro Hospitalar S. João Faculty of Medicine University of Porto Porto Portugal Superior School of Health Technology of Porto Vila Nova de Gaia Portugal INESC Porto Faculty of Engineering University of Porto Porto Portugal CINTESIS - Center for Research in Health Technologies and Information Systems Faculty of Medicine University of Porto Porto Portugal CIDES - Health Information and Decision Sciences Faculty of Medicine Universidade Do Porto Porto Portugal Dept. of Biostatistics and Medical Informatics UW-Madison United States Department of Radiology University of Wisconsin School of Medicine and Public Health Madison WI United States Department of Computer Science Faculty of Sciences University of Porto Porto Portugal

ISBN: (纸本)9781467325585

In this work we build the first BI-RADS parser for Portuguese free texts, modeled after existing approaches to extract BI-RADS features from English medical records. Our concept finder uses a semantic grammar based on the BI-RADS lexicon and on iterative transferred expert knowledge. We compare the performance of our algorithm to manual annotation by a specialist in mammography. Our results show that our parser's performance is comparable to the manual method. © 2012 IEEE.

关键词： Iterative methods

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Card user authentication based on generalized image morphing

Card user authentication based on generalized image morphing

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2011 3rd International Conference on Awareness science and Technology, iCAST 2011

作者： Zhao, Qiangfu Hsieh, Cheng-Hsiung Dept. of Computer and Information Systems University of Aizu Aizuwakamatsu Fukushima Japan Dept. of Computer Science and Information Engineering Chaoyang University of Technology Taichung Taiwan

ISBN: (纸本)9781457708879

Nowadays, "cards" are becoming part of our lives. The cards enable us to obtain different kinds of services conveniently, but may also bring us economic loss if they are used illegally by some malicious third party. A common practice to solve the problem is to ask the user to provide some personal information possessed by the true card holder only. However, the personal information can be leaked if it is not managed properly. To protect the card users more effectively, this study proposes a generalized image morphing technique and a new method for card user authentication. The fundamental idea is to hide the face image of the card holder into some cover data through morphing, distribute the key information for restoring the face image into several different places, and restore the face image through de-morphing when the card is used. Brief analysis show that the proposed method is simple but secure, and can be very useful in different card-based services. © 2011 IEEE.

关键词： Authentication

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A conceptual design of multi-agent based personalized quiz game

A conceptual design of multi-agent based personalized quiz g...

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International Conference on Advanced Learning technologies

作者： Weng, Martin M. Fakinlede, Ireti Lin, Fuhua Shih, Timothy K. Chang, Maiga Dept. of Computer Science and Information Engineering Tamkang University Taipei Taiwan School of Computing and Information Systems Athabasca University Athabasca Canada Dept. of Computer Science and Information Engineering National Central University Taoyuan Taiwan

ISBN: (纸本)9780769543468

This paper presents the conceptual design of a virtual 3D quiz game based on a multi-agent system (MAS) architecture aptly named QuizMASter. The QuizMASter supports formative assessment by providing adaptive testing and feedback using intelligent pedagogical agents within an immersive game-based virtual learning environment. This enables instructors to use assessment as a motivational tool within an entertaining context where students do not feel the usual pressures related to taking tests. © 2011 IEEE.

关键词： Multi agent systems

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Integrated estimation and tracking of performance model parameters with autoregressive trends 11

Integrated estimation and tracking of performance model para...

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Proceedings of the 2nd ACM/SPEC International Conference on Performance engineering

作者： Zheng, Tao Litoiu, Marin Woodside, Murray Dept. of Systems and Computer Engineering Carleton University Ottawa ON Canada Dept. of Information Science York University Toronto ON Canada

ISBN: (纸本)9781450305198

Adaptive management of a software service system can take advantage of a performance model which can predict the effect of proposed changes, before they are deployed. As the system varies over time the model parameters can be tracked by an estimator such as a Kalman Filter, so that decisions can be updated. The filter is valuable when parameters are "hidden" and cannot be directly measured without excessive cost (as is usually the case for the CPU time of a service). Because there may be significant delays in some management control actions (especially in deploying a new replica of a service), it is also important to be able to predict the changes ahead somewhat in time, that is, to predict the trends. The trend predictor itself needs to be estimated from observed trends in the model parameters. This work uses an autoregressive model for trend prediction and integrates it with the parameter estimator, in a single Kalman Filter, using auxiliary states for the parameter evolution process. This paper describes how the trend model is constructed, and evaluates its effectiveness. It compares the overall performance predictions to a simpler trend predictor using linear extrapolation of the fitted parameter time-series, which turns out to be almost as good. The approach is validated on a real system running a benchmark web application.

关键词： Extended Kalman filters

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Anytime algorithms for GPU architectures

Anytime algorithms for GPU architectures

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2011 32nd IEEE Real-Time systems.Symposium, RTSS 2011

作者： Mangharam, Rahul Saba, Aminreza Abrahimi Dept. of Computer and Information Science University of Pennsylvania United States Dept. of Electrical and Systems Engineering University of Pennsylvania United States

ISBN: (纸本)9780769545912

Most algorithms are run-to-completion and provide one answer upon completion and no answer if interrupted before completion. On the other hand, anytime algorithms have a monotonic increasing utility with the length of execution time. Our investigation focuses on the development of time-bounded anytime algorithms on Graphics Processing Units (GPUs) to trade-off the quality of output with execution time. Given a time-varying workload, the algorithm continually measures its progress and the remaining contract time to decide its execution pathway and select system resources required to maximize the quality of the result. To exploit the quality-time tradeoff, the focus is on the construction, instrumentation, on-line measurement and decision making of algorithms capable of efficiently managing GPU resources. We demonstrate this with a Parallel A* routing algorithm on a CUDA-enabled GPU. The algorithm execution time and resource usage is described in terms of CUDA kernels constructed at design-time. At runtime, the algorithm selects a subset of kernels and composes them to maximize the quality for the remaining contract time. We demonstrate the feedback-control between the GPU-CPU to achieve controllable computation tardiness by throttling request admissions and the processing precision. As a case study, we have implemented AutoMatrix, a GPU-based vehicle traffic simulator for real-time congestion management which scales up to 16 million vehicles on a US street map. This is an early effort to enable imprecise and approximate real-time computation on parallel architectures for stream-based time-bounded applications such as traffic congestion prediction and route allocation for large transportation networks. © 2011 IEEE.

关键词： Real time systems

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The manipuller: Strings manipulation and multi-dimensional force sensing

The manipuller: Strings manipulation and multi-dimensional f...

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International conference on New Interfaces for Musical Expression, NIME 2011

作者： Barenca, Adrián Torre, Giuseppe Digital Media and Arts Research Centre Dept. of Computer Science and Information Systems Faculty of Science and Engineering University of Limerick Ireland

The Manipuller is a novel Gestural Controller based on strings manipulation and multi-dimensional force sensing technology. This paper describes its motivation, design and operational principles along with some of its musical applications. Finally the results of a preliminary usability test are presented and discussed. © 2020, Steering Committee of the International Conference on New Interfaces for Musical Expression.

关键词： Force Sensing Gestural Controller Manipulation Strings

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Corporate News Classification and Valence Prediction: A Supervised Approach 2

Corporate News Classification and Valence Prediction: A Supe...

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2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis, WASSA 2011 at the 49th Annual Meeting of the Association for Computational Linguistics: Human Language technologies, ACL-HLT 2011

作者： Haider, Syed Aqueel Mehrotra, Rishabh Dept. of Computer Science and Engineering Manipal University MITKA-576104 India Computer Science and Information Systems Group Bits Rajasthan Pilani India

ISBN: (纸本)9781937284060

News articles have always been a prominent force in the formation of a company's financial image in the minds of the general public, especially the investors. Given the large amount of news being generated these days through various websites, it is possible to mine the general sentiment of a particular company being portrayed by media agencies over a period of time, which can be utilized to gauge the long term impact on the investment potential of the company. However, given such a vast amount of news data, we need to first separate corporate news from other kinds namely, sports, entertainment, science & technology, etc. We propose a system which takes news as, checks whether it is of corporate nature, and then identifies the polarity of the sentiment expressed in the news. The system is also capable of distinguishing the company/organization which is the subject of the news from other organizations which find mention, and this is used to pair the sentiment polarity with the identified company. © 2011 Association for Computational *** right reserved.

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XML-based reusable component repository for embedded software

XML-based reusable component repository for embedded softwar...

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35th Annual IEEE International computer Software and Applications Conference Workshops, COMPSACW 2011

作者： Chang, Chih-Hung Lu, Chih-Wei Chu, William C. Yang, Chao-Tung Hsiung, Pao-Ann Hsueh, Nien-Lin Koong, Chorng-Shiuh Shao, Kuei-Kai Dept. of Information Management Hsiuping Institute of Technology Taichung Taiwan Dept. of Computer Science Tunghai University Taichung Taiwan Dept. of Computer Science and Information Engineering National Chung Cheng University Chia-Yi Taiwan Dept. of Information Engineering and Computer Science Feng Chia University Taichung Taiwan Dept. of Computer and Information Science Taichung University Taichung City Taiwan Service Systems Technology Center Industrial Technology Research Institute Hsinchu Taiwan

ISBN: (纸本)9780769544595

In the development stage of the embedded system, the market demand and system development trend will be influence by the Time to Market. Reliable and fast system deployment is not easy to implement. Reduced price and system development time can increase the product value. Thus the component re-use library can help reduce the development time;this kind of design can reduce the emergence of rewriting and raise the efficiency by a wide margin. We design and study the reusable component in this research, proposing a prototype database based on XML. This technique has many advantages like reduces the time required for storage, improves the overall efficiency of the system, shortens the development time, increases reliability and reduces the risks handling etc. © 2011 IEEE.

关键词： XML

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