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Using workflow business process tools in simulation modeling 05

Using workflow business process tools in simulation modeling

引用

Simulation Winter conference

作者： J.G. Everton R.D. Stafford Brooks Automation Inc. Salt Lake UT USA

ISBN: (纸本)9780780395190

This article presents several model automation strategies used to improve the modeling operations such as data maintenance, model analysis and model visualization. There are several new products that have emerged in academics and industry that help reduce the costs of simulation and provide a solution that obtains more ROI from a new and/or existing simulation model. In addition these modeling techniques provide the capability to make models an operational component of a manufacturing system. As an operational component, models can provide planned work schedules, prediction estimates, and an operational decision tool that engineers and managers can used in making better operational decisions.

关键词： Analytical models Virtual manufacturing Maintenance engineering Predictive models Manufacturing automation Optimal scheduling Engineering management Project management data engineering Cities and towns

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IPMatrix: an effective visualization framework for cyber threat monitoring

IPMatrix: an effective visualization framework for cyber thr...

引用

International conference on Information Visualisation (IV)

作者： Kazuhixo Ohnof Hideki Koikef Kanba Koizumi Graduate Sch. of Inf. Syst. Electro-Commun. Univ. Osaka Japan Graduate School of Media and Governance Keio University Japan

An effective Internet cyber threat monitoring system detects cyber threats using network sensors deployed at particular points on the Internet, statistically analyses the time of attack, source of attack, and type of attack, and then visualizes the result of this analysis. Existing systems, however, simply visualize country-by-country statistics of attacks or hourly changes of attacks. Using these systems, it is difficult to understand the source of attack, the diffusion of the attack, or the relation between the target and the source of the attack. This paper described a method for visualizing cyber threats by using 2-dimensional matrix representation of IP addresses. The advantages of this method are that: (I) the logical distance of IP addresses is represented intuitively, (2) Internet address space is visualized economically, (3) macroscopic information (site level) and microscopic information (local level) are visualized simultaneously. By using this visualization framework, propagation of the Welchia worm and the Sasser.D worm are visualized.

关键词： Monitoring Intrusion detection Computer worms data visualization Sensor systems IP networks Statistics Information analysis Internet Economic forecasting

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Real-Time Representation of Network Traffic Behavior for Enhanced Security

Real-Time Representation of Network Traffic Behavior for Enh...

引用

International conference on Information Technology and Applications, ICITA

作者： J.C. McEachen J.M. Zachary Department of Electrical and Computer Engineering Naval Postgraduate School Monterrey CA USA Innovative Emergency Management Inc. Baton Rouge LA USA

This paper presents a model for real-time network monitoring and anomaly detection that provides a holistic view of network conversation exchanges. We argue that monitoring and anomaly detection are necessary mechanisms for ensuring secure and dependable network computing infrastructure. The model for network traffic exchange is based on a modified Ehrenfest urn model and combines statistical physics and queuing theory to provide macrostate descriptions of complex networked systems when the exact microstate parameters of each element in the system precludes global understanding from first principles. The conversation exchange dynamics model for real-time network monitoring and anomaly detection is formally presented in this context as a system-driven data reduction model. The model induces a unique real-time visualization capability for network monitoring and detection of anomalous events. An implementation of the model and visualization capability is presented along with laboratory tests and successful detection of computer network attacks

关键词： Telecommunication traffic Traffic control Computer networks Context modeling Computerized monitoring data visualization Physics Queueing analysis Real time systems Event detection

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A novel approach for skew estimation of document images in OCR system

A novel approach for skew estimation of document images in O...

引用

International conference on Computer Graphics, Imaging and visualization, CGIV

作者： M. Sarfraz A. Zidouri S.A. Shahab Department of Information and Computer Science KFUPM Dhahran Saudi Arabia

Optical character recognition (OCR) is an area which has always received special attention. OCR systems are typically built on the strategy of divide and conquer, rather than recognizing documents at one go. They utilize several stages during the course of recognition. There have been many stages in a typical OCR system, preprocessing stage in considered to be indispensable. An input image or information need to be normalized and converted into format acceptable by OCR system. OCR systems typically assume that documents were printed with a single direction of the text and that the acquisition process did not introduce a relevant skew. Practically this assumption is not very strong and printed document could be skewed at some angle with horizontal axis. In this paper, we have proposed a new technique for skew estimation of image document. In the proposed scheme, multiscale properties of an image are utilized together with principal component analysis to estimate the orientation of principal axis of clustered data.

关键词： Optical character recognition software Fourier transforms Discrete wavelet transforms Principal component analysis Wavelet transforms Character recognition Pattern recognition Joining processes Computer science Image converters

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Object and topology extraction from remote sensing images

Object and topology extraction from remote sensing images

引用

IEEE International conference on Image Processing

作者： C. Maire M. Datcu German Aerospace Center (DLR) Remote Sensing Technology Institute Wessling Germany

We present a complete processing line to generate an object based description of optical remote sensing (RS) images. A segmentation algorithm is used to generate a partition of regions and simplify the volume of data. Results are still at the pixel level. Based on topology analyses, a dynamical algorithm is proposed to retrieve, extract the segmented regions and encode them in a tree structure which describes their topological relations (adjacencies, inclusions). The overall collected information constitutes a consistent and independent database, generated efficiently on standard workstation. Many applications are possible, such as content based image retrieval, image description and compression, object classification or image-object fusion. A scenario is presented to emphasize interest of the method in the case of 3D visualization enhancement: image-objects are integrated on elevation data (digital elevation models, DEM) in order to generate more realistic rendering.

关键词： Topology Remote sensing data mining Image segmentation Partitioning algorithms Fusion power generation Optical sensors Algorithm design and analysis Heuristic algorithms Tree data structures

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Challenging conventions for geovisualization interface design: implications for exploratory data analysis

Challenging conventions for geovisualization interface desig...

引用

International conference on Information Visualisation (IV)

作者： R.M. Edsall Department of Geography Arizona State University USA

The use of interface metaphors and cartographic guidelines for facilitating communication between cartographer and user may serve to limit the power of the system or the representation for a diverse set of users or a diverse set of uses. For example, the data exploration tasks typical of geovisualization systems may be hindered by strict adherence to conventional and/or traditional interface metaphors or cartographic symbolization. Successful design of geovisualization systems, therefore, should take into account factors that are socially and culturally determined and adjust design accordingly dependent on the targeted users or, more importantly, the targeted task (i.e. exploratory data analysis). This paper explores this possibility and presents the results of a pair of human-subjects experiments where some subgroups among the participants were shown non-traditional representations. Results indicate that, for data exploration tasks, designers and users should embrace unconventional designs in order to encourage creative problem solving and hypothesis generation.

关键词： data analysis data visualization Computer displays Cognitive science Geography Guidelines Problem-solving Application software Humans Design methodology

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The thematic mapping system on internet

The thematic mapping system on internet

引用

International conference on Geoinformatics

作者： Lili Jiang Qingwen Qi An Zhang Institute of Geographical Science and Natural Resource Research Chinese Academy and Sciences Beijing China

ISBN: (纸本)9781424473014

Thematic Mapping Services (TMS) is about providing thematic mapping and analysis as a service way on internet. After the Internet Google launch Google Maps on the Internet in 2005, map application on the Internet appeared in large numbers. A large number of developers through the Google map API mashups maps out a wide variety of applications. With the concept of Web2.0, sharing a large number of open API, the coupling between data services and application services, made geographic visualization with the development of logical analysis. Developers to leverage some of the Government's statistical analysis of data, combined with Google map, super imposed out of a variety of applications, such as: revenue analysis of people in the Chicago area, the earthquake damage in Haiti and so forth. The paper is discussing the new ways and means of thematic mapping in the internet environment to make the maps express more dynamic, more lively and easier to understand.

关键词： Engines Statistical analysis Internet databases Production Geographic Information Systems XML

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ANN Interpolation in MCG Mapping

ANN Interpolation in MCG Mapping

引用

Annual International conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Shiqin Jiang Jiong Yu Lei Wu Department of Information and Control Engineering University of Tongji Shanghai China

Magnetocardiogram is a kind of medical image based on measuring the weak magnetic field of human heart, which reflects the magnetic activity in the human heart, and provides diagnosis information of heart diseases. At present, before visualizing the map based on very limited data, it should be pretreated through interpolation. To gain the high precision, we researched the interpolation in MCG and proposed a new method to solve it - ANN interpolation. Then we analyzed the performance among ANN interpolation, cubic spline interpolation and linear interpolation. The result is that ANN interpolation can reach the acquirement

关键词： Interpolation Magnetic field measurement Humans Heart Biomedical imaging Medical diagnostic imaging Cardiac disease data visualization Performance analysis Spline

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COTS cluster-based sort-last rendering: performance evaluation and pipelined implementation

COTS cluster-based sort-last rendering: performance evaluati...

引用

IEEE conference on visualization

作者： X. Cavin C. Mion A. Filbois Inria Lorraine Inria Lorraine France

Sort-last parallel rendering is an efficient technique to visualize huge datasets on COTS clusters. The dataset is subdivided and distributed across the cluster nodes. For every frame, each node renders a full resolution image of its data using its local GPU, and the images are composited together using a parallel image compositing algorithm. In this paper, we present a performance evaluation of standard sort-last parallel rendering methods and of the different improvements proposed in the literature. This evaluation is based on a detailed analysis of the different hardware and software components. We present a new implementation of sort-last rendering that fully overlaps CPU(s), GPU and network usage all along the algorithm. We present experiments on a 3 years old 32-node PC cluster and on a 1.5 years old 5-node PC cluster, both with Gigabit interconnect, showing volume rendering at respectively 13 and 31 frames per second and polygon rendering at respectively 8 and 17 frames per second on a 1024 x 768 render area, and we show that our implementation outperforms or equals many other implementations and specialized visualization clusters.

关键词： Rendering (computer graphics) Clustering algorithms Hardware visualization Computer graphics Image resolution Computer networks Concurrent computing Distributed computing Computed tomography

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Infolink: analysis of Dutch Broadcast News and Cross-Media Browsing

Infolink: Analysis of Dutch Broadcast News and Cross-Media B...

引用

IEEE International conference on Multimedia and Expo (ICME)

作者： J. Morang R. Ordelman F. de Jong A. van Hessen Department of Electrical Engineering Mathematics and Computer Science University of Twente Netherlands

In this paper, a cross-media browsing demonstrator named InfoLink is described. InfoLink automatically links the content of Dutch broadcast news videos to related information sources in parallel collections containing text and/or video. Automatic segmentation, speech recognition and available meta-data are used to index and link items. The concept is visualized using SMIL-scripts for presenting the streaming broadcast news video and the information links

关键词： Automatic speech recognition TV broadcasting Speech recognition Joining processes Digital video broadcasting Cultural differences Mathematics Computer science visualization Streaming media

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