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Proceedings of the 2011 ACM Symposium on Applied Computing

作者： Lan, Yihua Liu, Hong Song, Enmin Hung, Chih-Cheng School of Computer Science Huazhong University of Science and Technology Wuhan China School of Computing and Software Engineering Southern Polytechnic State University GA United States

ISBN: (纸本)9781450301138

Several K-View based algorithms have been made for developing image texture classification. These are K-View-Template algorithm (K-View-T), K-View-Datagram algorithm (K-View-D), Fast Weighted K-View-Voting algorithm (K-View-V), and K-View Using Rotation-Invariant Feature algorithm (K-View-R). In this paper, we review those K-View based algorithms and perform an empirical study for comparison by using classification accuracy, efficiency and stability. In addition, we propose a new K-View algorithm Using Gray Level Co-Occurrence Matrix algorithm (K-View-G) which also is compared with other K-View algorithms to demonstrate its effectiveness in image texture classification. © 2011 Authors.

关键词： Image texture

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Synthesizing tiled matrix decomposition on FPGAs

Synthesizing tiled matrix decomposition on FPGAs

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21st International Conference on Field Programmable Logic and Applications, FPL 2011

作者： Tai, Yi-Gang Psarris, Kleanthis Dan Lo, Chia-Tien Department of Computer Science University of Texas at San Antonio San Antonio TX 78249 United States Computer Science and Software Engineering Southern Polytechnic State University Marietta GA 30060 United States

ISBN: (纸本)9780769545295

Hardware accelerators such as FPGAs and GPUs in heterogeneous systems are being increasingly important for many applications. For high performance computing, the flexibility and efficiency of FPGA makes it an attractive alternative to other approaches. However, for applications that have to decompose large matrices, not many scalable solutions can be found on FPGAs. In this paper, we propose a scalable QR matrix decomposer on FPGAs based on the latest advances in tiled matrix decomposition algorithms for high performance linear algebra. The proposed design can decompose a matrix of size limited only by off-chip memory and has the potential to achieve high performance. © 2011 IEEE.

关键词： Field programmable gate arrays (FPGA)

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Image segmentation of cervical vertebra in X-ray radiographs using the curve fitting strategy 11

Image segmentation of cervical vertebra in X-ray radiographs...

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Proceedings of the 2011 ACM Symposium on Applied Computing

作者： Hu, Huaifei Liu, Hong Chen, Lili Hung, Chih-Cheng Xu, Xiangyang Lan, Zhicong School of Computer Science Huazhong University of Science and Technology Wuhan China Department of Stomatology Huazhong University of Science and Technology Wuhan China School of Computing and Software Engineering Southern Polytechnic State University Marietta GA 30060 United States

ISBN: (纸本)9781450301138

We develop an effective method for the study of cervical vertebra maturation (CVM) for bone age evaluation. Such studies need an accurate X-ray radiographs segmentation of cervical vertebra. It is difficult to have a good segmentation on this type of images. Current segmentation methods do not work well on scanned images from analog image X-ray radiographs of cervical vertebra. A new method for analysis of cervical bone age is proposed. Two key techniques are developed in this proposed segmentation algorithm: (1) a fitting weight matrix is built to reduce the effect of subjective factors entered by the user when fast marching method is used to obtain the initial rough outline of cervical vertebra, and (2) apply a curve fitting method based on rotating and overlapping parabolic curves to derive the final segments of cervical vertebra. Furthermore, the user can calculate corresponding parameters from segmented results to assess the bone age. Experimental results using the proposed algorithm show that our algorithm is more accurate than those of fast marching method (FMM) and radiologists through repetition. It also shows that the proposed method has a higher accuracy on the correlation of the skeletal maturity indicators (SMI) and quantitative cervical vertebral maturation (QCVM). © 2011 ACM.

关键词： computer aided diagnosis

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A simple low-cost portable energy efficient device to supplement operating system curriculum

A simple low-cost portable energy efficient device to supple...

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International Conference on Advanced Learning Technologies

作者： Lo, Chia-Tien Dan Qian, Kai Zhang, Yan-Qing Computer Science and Software Engineering Southern Polytechnic State University 1100 S. Marietta Pkwy Marietta GA 30060 United States Computer Science Georgia State University P.O. Box 3994 Atlanta GA 30302-3994 United States

ISBN: (纸本)9780769543468

This paper presents a new simple low-cost portable energy efficient device for teaching operating systems. This new technology offers a variety of curricular components including an open sourced small OS for proof of concepts and is suitable for project oriented curriculum, especially for online courses. This device has a potential to be reused in other computing courses. Its inexpensive characteristics promote broad adoption especially in resource limited institutions. © 2011 IEEE.

关键词： Curricula

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software Composition of Different Security Level Components

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computer Technology and Application 2011年第11期2卷 835-842页

作者： Frank Tsui Edward Jung Sheryl Duggins Software Engineering Southern Polytechnic State University Marietta Georgia 30060 USA Computer Science Southern Polytechnic State University Marietta Georgia 30060 USA

In this paper the authors show how software component design can affect security properties through different composition operators. The authors define software composition as the result of aggregating and/or associating a component to a software system. The component itself may be informational or functional and carry a certain level of security attribute. The authors first show that the security attributes or properties form a lattice structure when combined with the appropriate least upper bound and greatest lower bound type of operators. Three composition operators, named C l, C2 and C3 are developed. The system＇s security properties resulting from these compositions are then studied. The authors discuss how different composition operators maintain, relax and restrict the security properties. Finally, the authors show that C1 and C2 composition operators are order-sensitive and that C3 is order-insensitive.

关键词： software composition security component-design.

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A Simple Low-Cost Portable Energy Efficient Device to Supplement Operating System Curriculum

A Simple Low-Cost Portable Energy Efficient Device to Supple...

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International Conference on Advanced Learning Technologies (ICALT)

作者： Chia-Tien Dan Lo Kai Qian Yan-qing Zhang Computer Science and Software Engineering Southern Polytechnic State University Marietta GA USA Computer Science Georgia State University Atlanta GA USA

关键词： Education Clocks Hardware computer science Embedded systems

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A robust evolutionary strategy for generative validation of agent-based models using adaptive simulation ensembles 11

A robust evolutionary strategy for generative validation of ...

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Simulation Winter Conference

作者： Levent Yilmaz Guangyu Zou Osman Balci Computer Science and Software Engineering Auburn AL USA Department of Computer Science Virginia Polytechnic Institute and State University Blacksburg VA USA

Fewstudies examine distinct characteristics of problems studied by agent-based models and their implications on operational validation. This paper focuses on exploratory and generative modeling perspective advocated by the agent-based modeling paradigm. The significance of robustness is emphasized, and a robust generative validation strategy is proposed for models used in scientific problems in which ambiguity and deep uncertainty pervade. The strategy is predicated on the premise of creative evolutionary systems perspective that enables viewing validation within the scientific method of falsification. That is, the strategy mimics the way scientific knowledge is constructed and validated by groups of scientists within a scientific discipline. The utility and feasibility of the method is demonstrated using a case study.

关键词： Adaptation models Computational modeling Robustness Uncertainty Accuracy Adaptive systems MIMICs

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PolySat's Next Generation Avionics Design

PolySat's Next Generation Avionics Design

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IEEE International Conference on Space Mission Challenges for Information Technology, SMC-IT

作者： Greg Manyak John M. Bellardo Electrical Engineering Department California Polytechnic State University San Louis Obispo USA Computer Science Department California Polytechnic State University San Louis Obispo USA

The CubeSat platform provides a unique challenge for flight software design due to the incredible size and power constraints. A number of tradeoffs must be made to balance effectiveness, fault tolerance, and cost. These basic requirements have been combined with the lessons learned from Cal Poly's past 8-bit avionics system to design a significant revision based around a 32-bit microprocessor running Linux. This work analyzes both generations of avionics design, including a discussion of major design principles that are relevant to other CubeSat missions.

关键词： Satellites Payloads Aerospace electronics Hardware software Batteries Fault tolerance

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Synthesizing Tiled Matrix Decomposition on FPGAs

Synthesizing Tiled Matrix Decomposition on FPGAs

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International Conference on Field Programmable Logic and Applications

作者： Yi-Gang Tai Kleanthis Psarris Chia-Tien Dan Lo Department of Computer Science University of Texas San Antonio San Antonio TX USA Computer Science & Software Engineering Southern Polytechnic State University Marietta GA USA

关键词： Tiles Matrix decomposition Field programmable gate arrays System-on-a-chip Partitioning algorithms Pipeline processing

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Evaluation method with measureable space-time dynamic properties for mobile Ad Hoc networks

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Ruan Jian Xue Bao/Journal of software 2011年第6期22卷 1333-1349页

作者： Wang, Wei Guan, Xiao-Hong Wang, Bei-Zhan Wang, Ya-Ping State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 China School of Computer Science Xi'an Polytechnic University Xi'an 710048 China School of Software Xiamen University Xiamen 361005 China Department of Industrial and Systems Engineering Texas A and M University TX 77843 United States

Mobility model is a crucial feature to differentiate ad hoc networks from other networks. The evaluation of dynamic network properties caused by mobility model is the basic problem for research on protocol simulation and related technologies, such as topology control and network performance measurement, in ad hoc networks. In this paper, a model-based description of ad hoc networks is improved to avoid the drawbacks in describing the corresponding space-time dynamic properties. Then a universal evaluation method with measureable space-time dynamic properties is presented. The dynamic properties of several mobility models are studied by constructing the space distribution of the nodes and designing the models for analyzing the topological space-time dynamic properties. Furthermore, a novel mobility model based on circular curve movement is proposed to improve the flexibility and the capability to describe realistic scenarios with curve movement. Simulation with NS2 shows the presented method can effectively evaluate the characteristics of the existing mobility models. The numerical results also show that the proposed mobility model has good dynamic properties in comparison with the existing mobility models. ©2011 ISCAS.

关键词： Mobile ad hoc networks

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