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2012 International Conference on Intelligent System and Applied Material, GSAM 2012

作者： Liu, Youquan Yin, Kangxue Bao, Futing Liu, Yang Wu, Enhua School of Information Engineering Chang'an University Xi'an China School of Astronautics Northwestern Polytechnic University Xi'an China State Key Lab of Computer Science Institute of Software Chinese Academy of Sciences China

ISBN: (纸本)9783037853689

The computation of grain burning surface regression plays a very important role in the internal ballistic performance evaluation of solid rocket motor, however, the traditional methods such as geometry-based one could not handle the self-intersection and characteristic geometric element disappearing problems. This paper presents an effective and efficient framework to simulate 3D grain burning surface regression with level set method which is combined with Fast Marching technique to constrain the calculation area only around the burning surface. At last, a typical grain example is given by our framework to verify our method's effectiveness and efficiency. © (2012) Trans Tech Publications.

关键词： Numerical methods

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Embedded software Control of a Hybrid Vehicle＇s ECU/FCM System

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computer Technology and Application 2012年第1期3卷 8-15页

作者： Robert Murphy Patrick Otoo Bobbie Department of Computer Science School of Computing and Software Engineering Southern Polytechnic State University Marietta Georgia USA

This paper describes a research project that uses embedded systems design principles to construct and simulate an Engine Control Unit （ECU） for a hybrid car. The ECU is designed to select a fuel type based on the stress level of the simulated engine. The primary goal of the project was to use a robotics kit, connected to sensors, to simulate a hybrid car under certain stress conditions such as hill climbing or full throttle. The project uses the LEGO~ Mindstorms~ NXT robotics kit combined with a Java-based firmware, a pressure sensor to simulate a gas pedal, and a tilt sensor to determine when the car is traveling uphill or downhill. The objective was to develop, through simulation, a framework for adjusting the ratios/proportions of fuel types and mixture under the stress conditions. The expected result was to establish a basis for determining the ideal/optimal fuel-mix-stress ratios on the hybrid car＇s performance. Using the NXT robotics kit abstracted the low level details of the embedded system design, which allowed a focus on the high level design details of the research. Also, using the NXJ Java-based firmware allowed the incorporation of object oriented design principles into the project. The paper outlines the evolution and the compromises made in the choice of hardware and software components, and describes the computations and methodologies used in the project.

关键词： LEGO NXTTM embedded systems engine control unit NXJ Java firmware fuel control module.

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A Shot Boundary Detection Method Based on Context Vector and Tabu-SVM

A Shot Boundary Detection Method Based on Context Vector and...

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2012年全国理论计算机科学学术年会(NCTCS2012)

作者： Long Zhao Xuemei Sun Bingjian Shang Jigang Wu State Key Laboratory of School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China

tegorizing the consecutive video frames into shots is the first and prerequisite step for contentbased video indexing and *** a considerable amount of research focusing on the shot boundary detection,traditional class...

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A shot boundary detection method based on context vector and Tabu-SVM

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Journal of Computational Information Systems 2012年第16期8卷 6817-6824页

作者： Zhao, Long Sun, Xuemei Shang, Bingjian Wu, Jigang School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China

Categorizing the consecutive video frames into shots is the first and prerequisite step for contentbased video indexing and retrieval. With a considerable amount of research focusing on the shot boundary detection, traditional classification for common shot transitions has achieved satisfactory results. However, most of the existing algorithms are susceptible to the effect from thresholds, and can't avoid missing the long gradual shot transitions hard to detect. To address the two problems, a novel method which uses context feature vector and Tabu-SVM is presented in the paper. The major advantages of the proposed algorithm are quite accurate detection performance and optimization towards the classification model. Experimental results show that our proposed method is effective and robust, especially the boundaries of long transitions are detected with minimal inaccuracy. © 2012 Binary Information Press.

关键词： Support vector machines

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An application of circumscribed circle filter in the multi-stencils fast marching method 12

An application of circumscribed circle filter in the multi-s...

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27th Annual ACM Symposium on Applied Computing, SAC 2012

作者： Liu, Hong Hung, Chih-Cheng Hu, Huaifei Yu, Mali Song, Enmin School of Computer Science Huazhong University of Science and Technology Wuhan China Key Laboratory of Education Ministry for Image Processing and Intelligent Control Wuhan Hubei 430074 China School of Computing and Software Engineering Southern Polytechnic State University Marietta GA 30060 United States

ISBN: (纸本)9781450308571

We develop an effective method for improving the segmentation result based on the Multi-Stencils Fast Marching method (MSFM). In MSFM, the gradient information of the image plays a vital role for calculating edges. It is straightforward to obtain the edge of good quality images;however, MSFM may not have robust edge maps available for images with spurious edges. Thus, a special multi-direction circumscribed circle filter is proposed to calculate the image gradient information which is then used in the MSFM. Using the new gradient information, better image contours can be obtained with MSFM. The size of the radius used in our circle filter is constant even the standard deviation of zero-mean Gaussian noise changes while the parameters of mean filter and Canny filter for gradient computation have to be correctly selected according to different noisy images. Our proposed method shows that it is effective through the experiments of image segmentation. © 2012 ACM.

关键词： Image segmentation

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Reports of the AAAI 2011 fall symposia

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AI Magazine 2012年第1期33卷 71-78页

作者： Blisard, Sam Carmichael, Ted Ding, Li Finin, Tim Frost, Wende Graesser, Arthur Hadzikadic, Mirsad Kagal, Lalana Kruijff, Geert-Jan M. Langley, Pat Lester, James McGuinness, Deborah L. Mostow, Jack Papadakis, Panagiotis Pirri, Fiora Prasad, Rashmi Stoyanchev, Svetlana Varakantham, Pradeep Interactive Systems Section Naval Research Laboratory Washington DC United States Department of Software and Information Systems University of North Carolina Charlotte United States Qualcomm Inc. United States Department of Computer Science and Electrical Engineering University of Maryland Baltimore County United States Department of Psychology Institute of Intelligent Systems University of Memphis United States Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology United States Germany Department of Computer Science and Engineering Arizona State University Tempe AZ United States Department of Computer Science North Carolina State University United States Department of Computer Science and Cognitive Science Rensselaer Polytechnic Institute United States School of Computer Science Carnegie Mellon University United States Department of Informatics and Systems University of Sapienza Rome Italy Department of Informatics and Systems ALCOR Lab University of Sapienza Rome Italy Department of Health Informatics and Administration University of Wisconsin-Milwaukee United States Columbia University United States School of Information Systems Singapore Management University Singapore Singapore

The Association for the Advancement of Artificial Intelligence was pleased to present the 2011 Fall Symposium Series, held Friday through Sunday, November 4-6, at the Westin Arlington Gateway in Arlington, Virginia. The titles of the seven symposia are as follows: (1) Advances in Cognitive Systems;(2) Building Representations of Common Ground with Intelligent Agents;(3) Complex Adaptive Systems: Energy, Information, and Intelligence;(4) Multiagent Coordination under Uncertainty;(5) Open Government Knowledge: AI Opportunities and Challenges;(6) Question Generation;and (7) Robot-Human Teamwork in Dynamic Adverse Environments. The highlights of each symposium are presented in this report. Copyright © 2012, Association for the Advancement of Artificial Intelligence. All rights reserved.

关键词： Intelligent agents

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Efficient Heuristics for Minimizing Reconfiguration Overhead on VLSI Arrays with Faults

Efficient Heuristics for Minimizing Reconfiguration Overhead...

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2012年全国理论计算机科学学术年会(NCTCS2012)

作者： Yuanbo Zhu Jigang Wu Guiyuan Jiang Ke Chen State Key Laboratory of Computer Science Institute of Software Chinese Academy of SciencesBeijing 100190 China School of Computer Science and Technology Tianjin University Tianjin 300072 China School of Computer Science and Software School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China

is paper presents an efficient heuristic algorithm to minimize the overhead on the reconfiguration for two-dimensional VLSI/WSI arrays in the presence of faulty processing elements(PEs).

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Efficient surface-aware ray tracing based on implicit model representation 82

Efficient surface-aware ray tracing based on implicit model ...

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Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012

作者： Li, Jigang Meng, Xianhai Yang, Qin Wu, Ru-Shan State Key Laboratory of Software Development Environment Beijing China School of Computer Science and Engineering Beihang University Beijing China Department of Earth and Planetary Sciences Institute of Geophysics and Planetary Physics University of California Santa Cruz United States

ISBN: (纸本)9781622769452

We propose a novel surface-aware ray tracing method based on implicit model representation. Each horizon is represented by a signed distance field and the spatial relationships between horizons are described by a stratigraphic binary tree. With this kind of implicit representation, complex structural model (e.g., heavily faulted, intrusions and unconformities) are easily handled, and the velocity discontinuities across interfaces can be represented accurately. Moreover, the ray-intersection with the interfaces can be accomplished very efficiently because only finite number of local computations is involved. The proposed method has many potential applications such as ray-based seismic modeling, ray-based seismic migration and tomographic migration velocity analysis, etc. © 2012 SEG.

关键词： Binary trees

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Efficient heuristics for minimizing reconfiguration overhead on VLSI arrays with faults

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Journal of Computational Information Systems 2012年第16期8卷 6663-6670页

作者： Zhu, Yuanbo Wu, Jigang Jiang, Guiyuan Chen, Ke School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China School of Computer Science and Technology Tianjin University Tianjin 300072 China

This paper presents an efficient heuristic algorithm to minimize the overhead on the reconfiguration for two-dimensional VLSI/WSI arrays in the presence of faulty processing elements (PEs). According to the locations of faulty PEs, the proposed technique is utilized to preprocess the host array by identifying some fault-free but unusable PEs as faults, which minimizes the size of the set of fault-free PEs that are actually useful for reconfiguration. Simulation results show that, the improvements over the two existing algorithms are up to 48% and 52% in terms of runtime, respectively. Moreover, the improvement increases with the increasing faulty density of the host arrays. © 2012 Binary Information Press.

关键词： Fault tolerance

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Mobile security labware with smart devices for cybersecurity education

Mobile security labware with smart devices for cybersecurity...

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IEEE Integrated STEM Education Conference (ISEC)

作者： Kai Qian Chia-Tien Dan Lo Minzhe Guo Prabir Bhattacharya Li Yang School of Computer Science and Software Engineering Southern Polytechnic State University USA School of Computing Sciences and Informatics University of Cincinnati USA School of Engineering and Computer Science University of Tennessee Chattanooga USA

Smart mobile devices such as smartphones and tablets have become an integral part of our society. However, it also becomes a prime target for attackers with malicious intents. There have been a number of efforts on developing innovative courseware to promote cybersecurity education and to improve student learning; however, hands-on labs are not well developed for smart mobile devices and for mobile security topics. In this paper, we propose to design and develop a mobile security labware with smart mobile devices to promote the cybersecurity education. The integration of mobile computing technologies and smart devices into cybersecurity education will connect the education to leading-edge information technologies, motivate and engage students in security learning, fill in the gap with IT industry need, and help faculties build expertise on mobile computing. In addition, the hands-on experience with mobile app development will promote student learning and supply them with a better understanding of security knowledge not only in classical security domains but also in the emerging mobile security areas.

关键词： Mobile communication Smart phones Educational institutions computer security

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