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121st ASEE Annual Conference and Exposition: 360 Degrees of Engineering Education

作者： Jin, Ge Dekker, Gerald A. Moreland, John Nicolai, Barbara Jean Department of Computer Information Technology and Graphics College of Technology Purdue University Calumet United States Department of Computer Science Purdue University Calumet United States Center for Innovation through Visualization and Simulation Purdue University Calumet United States

Natural disasters can cause huge loss of life, enormous amounts of property damage to the local communities. Although it is impossible to avoid the natural disasters, human sufferings can be reduced by adopting information technologies to the disaster response missions. In this paper, a web-based 3D visualization and cluster computing system was developed to facilitate and expedite the resource distribution process during a disaster. Our disaster management system utilizes state-of- The- Art computing cluster with 16 nodes of Intel Xeon-E5 processors (16 cores per node) to process the emergency supply requests from the disaster victims, and calculate the optimal resource distribution routes with the consideration of the damaged transportation infrastructures. The optimized resource distribution problem was solved with distributed all pair shortest path algorithm and the vehicle routing algorithm. The web-based 3D visualization system was developed with Google earth engine to display the disaster areas, affected households and resource distribution routes. The computation result from the cluster was automatically uploaded to the web-based 3D visualization system, enabling the users to immediately see the optimal resource distribution routes in a virtual 3D environment. The visualization system is flexible and can be easily adapted to a Google earth enabled mobile devices, desktop monitors as well as a Cave automatic virtual environment (CAVE). A historical disaster data from the Northwest Indiana was used to demonstrate the functionalities of the developed system. © American Society for Engineering Education, 2013.

关键词： Virtual reality

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A study on evolution of influence in online social networks

A study on evolution of influence in online social networks

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2013 International Conference on Advanced Computing and Communication Systems, ICACCS 2013

作者： Yeruva, Sujatha Devi, T. Samatha Reddy, Y. Department of Computer Science St.Francis College for Women Hyderabad16 India Dept. of Computer Applications Bharathiar University Coimbatore46 India Department of System Engineering NVIDIA Graphics Pvt Ltd Hyderabad46 India

ISBN: (纸本)9781479935062

Online social networks are gaining galloping upward momentum in a quick succession ever since from their inception as they lay a sturdy platform to share the information seeping into everyone who is concerned about it. In this spirited world substantial amount of success depends on how quickly one is able to reach out to the maximum number of people. There are very few who can have paramount consideration of influence on others. Crux of the problem is to pick right people whose influence is absolute in order to diffuse the influence with minimum effort. These seeding people can in turn be used to make an upward notion in areas like politics, all types of education including health and farming, introduce a product or service in the market, to revolutionize any formal setup environment of both private and public, training employees, changes in thinking patterns of the society and its life style, to propagate superior deliberations in the minds of people and likewise. In this paper Pareto front function is used to identify the eminent leaders which is followed by the empirical analysis of the results of evolution of their influence. © 2013 IEEE.

关键词： Social networking (online)

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Preface

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Journal of computer science & Technology 2015年第3期30卷 437-438页

作者： Shi-Min Hu (1) Leif Kobbelt (2) .Department of Computer Science and Technology Tsinghua University Beijing China 2.Computer Graphics Group RWTH Aachen University Aachen Germany

With the increasing rapid development of information and communication technologies from the high-speed Internet to mobile phones and digital cameras, visual data is now widely available in huge amounts and a great variety, yielding significant challenges and opportunities for novel processing schemes of visual information, as well as their commercial applications.

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Scripted animation towards scalable content creation for elearning—a quality analysis 1

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1st International Conference on e-Learning, e-Education and Online Training, eLEOT 2014

作者： Adamo-Villani, Nicoletta Cui, Jian Popescu, Voicu Department of Computer Graphics Technology Purdue University 401 N. Grant Street West LafayetteIN47907 United States Department of Computer Science Purdue University 305 N. University Street West LafayetteIN47907 United States

ISBN: (数字)9783319132938

ISBN: (纸本)9783319132921

The success of eLearning depends on the broad availability of educational materials that provide a high-quality delivery of high-quality content. One approach for high-quality delivery is to rely on a computer animated instructor avatar that not only speaks, but that also gestures to elucidate novel concepts and to convey an engaging personality that captures and maintains the learners’ focus. The traditional approach of manual key frame animation does not scale, as it requires a substantial time investment as well as artistic talent. We have developed a system that allows animating an instructor avatar quickly and without the prerequisite of artistic talent through a text script. In this paper we quantify the speed/quality tradeoff made by our scripted animation by comparison to manual animation. © Institute for computer sciences, Social Informatics and Telecommunications Engineering 2014.

关键词： Animation

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Visual Models and Ontologies 14

Visual Models and Ontologies

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graphics Interface Conference

作者： Eugene Fiume Dynamic Graphics Project Department of Computer Science University of Toronto

ISBN: (纸本)9781482260038

Realistic computer graphics will change the way people think and communicate. Achieving deeper success as a ubiquitous medium will require a more resonant understanding of visual modelling that must embrace mathematical, philosophical, cultural, perceptual and social aspects. With an interleaved understanding, people will be able to create visual ontologies that better align to their expressive needs. In turn, this will naturally lead to ubiquitous supporting technologies. First we need good visual models. A model induces an ontology of things that inevitably omits aspects of the phenomenon, whether desired or not. Thus modelling a model's incompleteness is crucial, for it allows us to account for artifacts, errors, and ontological surprises such as the "uncanny valley". Over the years, my choice of tools to model models has been mathematics. In this paper, I will speak to how little progress we have made and how much broader our investigation must be.

关键词： Ontology Visualization computer graphics mathematics

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Riemann-finsler multi-valued geodesic tractography for HARDI 4th

Riemann-finsler multi-valued geodesic tractography for HARDI

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4th Meeting on Visualization and Processing of Tensors and Higher Order Descriptors for Multi-Valued Data, 2011

作者： Sepasian, Neda Ten Thije Boonkkamp, Jan H. M. Florack, Luc M. J. Ter Haar Romeny, Bart M. Vilanova, Anna Department of Biomedical Engineering Mathematics and Computer Science Eindhoven University of Technology PO Box 513 Eindhoven5600 MB Netherlands Mathematics and Computer Science Eindhoven University of Technology PO Box 513 Eindhoven5600 MB Netherlands Department of Biomedical Engineering Eindhoven University of Technology PO Box 513 Eindhoven5600 MB Netherlands Faculty Electrical Engineering Mathematics and Computer Science Computer Graphics and Visualization Delft University of Technology Delft Netherlands

ISBN: (纸本)9783642543005

We introduce a geodesic based tractography method for High Angular Resolution Diffusion Imaging (HARDI). The concepts used are similar to the ones in geodesic based tractography for Diffusion Tensor Imaging (DTI). In DTI, the inverse of the second-order diffusion tensor is used to define the manifold where the geodesics are traced. HARDI models have been developed to resolve complex fiber populations within a voxel, and higher order tensors (HOT) are possible representations for HARDI data. In our framework, we apply Finsler geometry, which extends Riemannian geometry to a directionally dependent metric. A Finsler metric is defined in terms of HARDI higher order tensors. Furthermore, the Euler-Lagrange geodesic equations are derived based on the Finsler geometry. In contrast to other geodesic based tractography algorithms, the multi-valued numerical solution of the geodesic equations can be obtained. This gives the possibility to capture all geodesics arriving at a single voxel instead of only computing the shortest one. Results are analyzed to show the potential and characteristics of our algorithm. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Diffusion tensor imaging

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Quick and Dirty: Streamlined 3D Scanning in Archaeology 14

Quick and Dirty: Streamlined 3D Scanning in Archaeology

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17th ACM Conference on computer Supported Cooperative Work and Social Computing, CSCW 2014

作者： Knibbe, Jarrod O'Hara, Kenton P. Chrysanthi, Angeliki Marshall, Mark T. Bennett, Peter D. Earl, Graeme Izadi, Shahram Fraser, Mike Interaction and Graphics Group Department of Computer Science University of Bristol United Kingdom Archaeological Computing Research Group University of Southampton United Kingdom Microsoft Research Cambridge United Kingdom

ISBN: (纸本)9781450325400

Capturing data is a key part of archaeological practice, whether for preserving records or to aid interpretation. But the technologies used are complex and expensive, resulting in time-consuming processes associated with their use. These processes force a separation between ongoing interpretive work and capture. Through two field studies we elicit more detail as to what is important about this interpretive work and what might be gained through a closer integration of capture technology with these practices. Drawing on these insights, we go on to present a novel, portable, wireless 3D modeling system that emphasizes 'quick and dirty' capture. We discuss its design rational in relation to our field observations and evaluate this rationale further by giving the system to archaeological experts to explore in a variety of settings. While our device compromises on the resolution of traditional 3D scanners, its support of interpretation through emphasis on real-time capture, review and manipulability suggests it could be a valuable tool for the future of archaeology. Copyright © 2014 ACM.

关键词： History

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Visual explanation of government-data for policy making through open-data inclusion

Visual explanation of government-data for policy making thro...

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International Conference for Internet Technology and Secured Transactions (ICITST)

作者： Dirk Burkhardt Kawa Nazemi Wilhelm Retz Jörn Kohlhammer TU Darmstadt Department of Computer Science Darmstadt Germany Fraunhofer Institute for Computer Graphics Research Darmstadt Germany

Commonly, data used in public authorities are statistical data about certain indicator. Such valid kind of data allows an objective observation about indicator developments over time. In case of a significant deviation from the normal indicator level, it is difficult to understand the reasons for upcoming problems. In our paper we present an approach that allows an enhanced information gathering through an improved information overview about the depending aspects to such an indicator by considering governmental data-sources that provide also other types of data than just statistics. Even more, our approach integrates a system that allows generating explanations for Open Government Data, especially to specific indicators, based on Linked-Open Data. This enables decision-makers to get hints for unexpected reasons of concrete problems that may influence an indicator.

关键词： Data visualization Government Decision making Internet Visualization Concrete Semantics

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From individual to population: Challenges in medical visualization

Mathematics and Visualization

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Mathematics and Visualization 2014年 37卷 265-282页

作者： Botha, C.P. Preim, B. Kaufman, A.E. Takahashi, S. Ynnerman, A. Vxlabs Somerset WestSA South Africa Department of Simulation and Graphics University of Magdeburg Magdeburg Germany Department of Computer Science Stony Brook University NY United States Graduate School of Frontier Sciences The University of Tokyo Tokyo Japan Norrköping Visualization and Interaction Studio Linköping University Linköping Sweden

Due to continuing advances in medical imaging technology, and in medicine itself, techniques for visualizing medical image data have become increasingly important. In this chapter, we present a brief overview of the past 30 years of developments in medical visualization, after which we discuss the research challenges that we foresee for the coming decade. © 2014, Springer-Verlag London.

关键词： Visualization

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Overlapping Community Detection in social network based on Microblog User Model

Overlapping Community Detection in social network based on M...

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International Conference on Data science and Advanced Analytics (DSAA)

作者： Yajun Gu Bofeng Zhang Guobing Zou Mingqing Huang Keyuan Jiang School of Computer Engineering & Science Shanghai University Shanghai China Department of Computer Information Technology & Graphics Purdue University Calumet Indiana USA

Online social networks have found a significant increase in their popularity in recent years. All the networks have community structure, and one of the research problems mostly frequently tackled is the discovery of communities. An overlapping community is a network structure that allows one node to be a member of multiple communities. The method presented in this paper aims at detecting overlapping communities in social networks, and its novelty lies in that it combines with the Microblog User Model (MUM) which can reflect the interest of the user accurately. First, the MUM network, which is an undirected and weighted network, is constructed by computing the similarity among MUMs. Afterwords, Overlapping Community Detection based on MUM (OCD-MUM) is performed to partition the network. A community stops expanding when the fitness function reaches a local maximum. The communities detected are locally optimized. A user's interest is not only decided by the MUM, but it is also affected by the communities the user belongs to. The community model can reflect the interest of the community. The MUM is updated with community model of its communities, and therefore the interest of the user can be predicted by these communities. Our experiment result shows that OCD-MUM has a higher modularity Q value than traditional methods and the predicted interest is more close to the real world situations.

关键词： Communities Computational modeling Predictive models Social network services Image edge detection Vectors Clustering algorithms

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