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5th International conference on data Mining

作者： Watts, RJ Porter, A Minsk, B USA Tank Automot & Armaments Command Warren MI 48397 USA

ISBN: (纸本)1853127299

Wouldn't it be nice to automatically categorize documented research to distinguish organizational R&D emphases? For example, in the area of multirobot research, one could surmise that Japanese sources have less emphasis than expected on biological approaches and reconfigurable robots, and more emphasis than expected on human-robot interface, motion coordination and robot learning. Development and analysis of such a capability comprises the subject of this paper. Over the past decade, we have been developing a software tool for text analysis and classification, the Technology Opportunities analysis of Scientific Information System (Tech OASIS). The Tech OASIS tool suite contains two information clustering algorithms, both of which evolved from principle components analysis (PCA). Based on the terms contained in an abstracts record field (e.g., abstract noun phrases, keywords, class codes, etc.), Tech OASIS generates topical clusters. We have now developed a capability to assess expectancy (i.e. binomial distribution likelihood) of occurrences. We demonstrate the derived analysis technique on the abstracts of 354 multi-robot research papers, principally, those from Japanese and USA sources.

关键词： text mining expectancy measure principal components analysis factor mapping principal components decomposition multi-robot research VantagePoint visualization of statistical measures

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Intensive use of correspondence analysis for information retrieval

Intensive use of correspondence analysis for information ret...

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26th International conference on Information Technology Interfaces

作者： Morin, A Univ Rennes 1 IRISA F-35042 Rennes France

ISBN: (纸本)9539676991

With the huge amount of available textual data, we need to find convenient ways to process the data and to get invaluable information. It appears that the use of factorial correspondence analysis allows to get most of the information included in the data. Besides, even after the data processing, we still have a big amount of material and we need visualization tools to display it. In this paper, we show how to use correspondence analysis in a sensible way and we give an application on the anal is of the internal scientific production of an important research center in France : the INRIA, the french national institute for research in computer science and control.

关键词： correspondence analysis information retrieval textual data

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An analysis tool for quantification of diffusion tensor MRI data

An analysis tool for quantification of diffusion tensor MRI ...

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Medical Image Computing and Computer-Assisted Intervention, MICCAI 2004 - 7th International conference, Proceedings

作者： Park, Hae-Jeong Shenton, Martha E. Westin, Carl-Fredrik Dept. of Diagnostic Radiology College of Medicine Yonsei University Shinchon-dong Seodaemun-gu Seoul 120-749 Korea Republic of Dept. of Radiology Harvard Medical School Brigham and Women's Hospital 75 Francis Str. Boston MA 02115 United States Dept. of Psychiatry Clinical Neuroscience Division Harvard Medical School Boston MA 02115 United States

ISBN: (纸本)3540229779

A software tool for analyzing Diffusion Tensor MRI (DT-MRI) data is presented. The tool includes methods for segmentation of white matter for automatic definition of seed points for fiber tractography, and methods for 2D slice visualization using different types of tensor glyphs and color-coding schemes. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Magnetic resonance imaging

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An integrated visual intrusion detection and analysis system

An integrated visual intrusion detection and analysis system

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Proceedings of the International conference on Internet Computing, IC'04

作者： Rana, Aurangzieb Zieh Huang, Mao Lin Faculty of Information Technology University of Technology Sydney Broadway 2007 Australia

The existing Intrusion Detection Systems often convey intrusion detection by using either or combination of network intrusion detection sensors, and host intrusion detection sensors. They do not integrate other devices such as firewalls, routers, mail, web, and DNS servers to extend the data collection resources. As a result of limited data resources, the higher correlation among intrusion data cannot be achieved and higher accurate results cannot be produced. There is also an issue of security between IDS sensors and central console. The intrusion results are also often represented as textual log files and hence are more difficult to analyze by a human user. This paper discusses a need and proposes a framework for an Integrated Intrusion detection system with inbuilt visual analysis tool. This system will provide various logs, audit trails, policy violations and alerts. All of this data could be collected and aggregated into a single database. The database could then be analyzed by using data mining and information visualization methods to determine and verify if an intrusion has occurred.

关键词： World Wide Web

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Efficient presentation of multivariate audit data for intrusion detection of web-based internet services

Efficient presentation of multivariate audit data for intrus...

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1st International conference on Applied Cryptography and Network Security, ACNS 2003

作者： Guo, Zhi Lam, Kwok-Yan Chung, Siu-Leung Gu, Ming Sun, Jia-Guang School of Software Tsinghua University Beijing China School of Business Administration The Open University of Hong Kong China

ISBN: (纸本)3540202080

This paper presents an efficient implementation technique for presenting multivariate audit data needed by statistical-based intrusion detection systems. Multivariate data analysis is an important tool in statistical intrusion detection systems. Typically, multivariate statistical intrusion detection systems require visualization of the multivariate audit data in order to facilitate close inspection by security administrators during profile creation and intrusion alerts. However, when applying these intrusion detection schemes to web-based Internet applications, the space complexity of the visualization process is usually prohibiting due to the large number of resources managed by the web server. In order for the approach to be adopted effectively in practice, this paper presents an efficient technique that allows manipulation and visualization of a large amount of multivariate data. Experimental results show that our technique greatly reduces the space requirement of the visualization process, thus allowing the approach to be adopted for monitoring web-based Internet applications. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Network security

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Multimodal phoneme recognition of meeting data

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7th International conference on Text, Speech and Dialogue, TSD 2004

作者： Motlícěk, Petr Černocký, Jan VUT Brno Brno Czech Republic

ISBN: (纸本)3540230491

This paper describes experiments in automatic recognition of contextindependent phoneme strings from meeting data using audio-visual features. Visual features are known to improve accuracy and noise robustness of automatic speech recognizers. However, many problems appear when not "visually clean" data is provided, such as data without limited variation in the speaker’s frontal pose, lighting conditions, background, etc. The goal of this work was to test whether visual information can be helpful for recognition of phonemes using neural nets. While the audio part is fixed and uses standard Mel filter-bank energies, different features describing the video were tested: average brightness, DCT coefficients extracted from region-of-interest (ROI), optical flow analysis and lip-position features. The recognition was evaluated on a sub-set of IDIAP meeting room data. We have seen small improvement when compared to purely audio-recognition, but further work needs to be done especially concerning the determination of reliability of video features. © Springer-Verlag Berlin Heidelberg 2004.

关键词： data visualization

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Visual analysis of rock mass classification in high arch dam foundation and its application

Visual analysis of rock mass classification in high arch dam...

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Proceedings of the 4th International conference on Dam Engineering - New Developments in Dam Engineering

作者： Zhong, Denghua Li, Mingchao Wang, Gang School of Civil Engineering Tianjin University Tianjin China Chengdu Hydroelec. Invest./Des. I. Chengdu China

ISBN: (纸本)0415362407

Rock mass quality classification is an important means of evaluating engineering geologic conditions, and plays a very significant part in treatment of dam foundation for hydropower engineering. However, the represents of most classified results are now limited to static 2D manner and have been hard to satisfy analytical demands. Therefore, it is necessary for meeting higher expectations of classification results expression to study the visualization of rock mass classification. This paper studied the visual treatment of the dam foundation in Jinping first-level hydropower station as an engineering example, in which the design height of the arch dam is 305 m. Firstly with a new data structure, 3D structural model of classification results was constructed by NURBS tool. Then, according to the disposal scheme of dam foundation, a series of analyses were operated by relevant algorithms, including the visualization of classification in the treatment region and the contrast between pre and post treatment. It can offer engineers corresponding information more directly and effectively, and has achieved well practical effects. © 2004 Taylor & Francis Group, London.

关键词： Arch dams

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Multi-mission activity planning for Mars lander and rover missions

Multi-mission activity planning for Mars lander and rover mi...

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2004 IEEE Aerospace conference Proceedings

作者： Backes, Paul G. Norris, Jeffrey S. Powell, Mark W. Vona, Marsette A. Jet Propulsion Laboratory California Institute of Technology Pasadena CA United States

ISBN: (纸本)0780381556

The Web Interface for Telescience (WITS) provides downlink data visualization and uplink activity planning for multiple Mars lander and rover missions. WITS also provides a ground data system (CDS) for terrestrial rover operations. The architecture of the WITS system that enables its multi-mission use is described. WITS has been used as the GDS for the Rocky7, FIDO, and Rocky8 rovers at JPL. It was used for command sequence generation for the Mars Polar Lander mission robotic arm and robotic arm camera and will be used for science activity planning in the 2003 Mars Exploration Rover (MER) mission. It is also planned for use in the 2007 Phoenix Mars lander mission and 2009 Mars Science Laboratory (MSL) rover mission. WITS is currently being integrated with the Mission data System (MDS) for use in the MSL mission and with the Coupled Layer Architecture for Robotic Autonomy (CLARAty) system for use as the GDS for terrestrial technology development landers and rovers.

关键词： Martian surface analysis

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Advances in design and installation analysis of pipelines in congested areas with rough seabed topography

Advances in design and installation analysis of pipelines in...

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23rd International conference on Offshore Mechanics and Arctic Engineering

作者： Sævik, Svein Giertsen, Egil Berntsen, Vidar MARINTEK N-7450 Trondheim Norway

The present paper addresses a method for simulation of deepwater pipeline installation in offshore fields with rough seabed topography focusing on verification of installation feasibility. The method enables 3D pipe lay analysis to be carried out as a set of subsequent static analyses where the vessel is moved forward automatically considering the restraints from lay vessel departure angle and arbitrarily curved pipe routing. The analysis includes the effect of seabed topography from survey data and variable seabed conditions. The numerical algorithm is seamlessly integrated with 3D graphics for visualization of both the seabed terrain and the structural response of the pipe as the vessel is moving forward. The numerical method is based on finite elements that are formulated by applying the Principle of Virtual Displacements. Large deformations, non-linear geometry and contact effects are taken into account. In addition, elastic and elastic-plastic material models are allowed for, both for the pipe and the seabed contact elements. The paper focuses on the procedure including a brief theory description addressing the specialities needed in this case with respect to kinematics, material models and finite element formulation. The developed procedure is then demonstrated both by analytical and real pipeline installation test examples.

关键词： Pipelines

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Radiocarbon data collection, filtering and analysis at the NRL TEAMS facility

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NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 2004年 223卷 216-220页

作者： Tumey, SJ Grabowski, KS Knies, DL Mignerey, AC Univ Maryland Dept Chem & Biochem College Pk MD 20742 USA USN Res Lab Washington DC 20375 USA

This report describes a novel approach to collection and analysis of radiocarbon data due to the unique design of the Naval Research Laboratory Trace Element Accelerator Mass Spectrometry system. In this approach, targets are loaded on the cathode wheel such that samples are clustered in groups of five between standards. Each target is measured until the external error asymptotically reaches a constant value and the internal error dominates, or until a predefined time limit is reached. These measurements are repeated until the desired level of counting statistics is attained. Cycle control software saves the measured beam currents and count rate, as well as all system parameters to disc at fixed intervals throughout each measurement. data visualization software has aided in system diagnosis by exposing relationships between the measured isotope ratios and system parameters. A filtering algorithm is employed to the data set of each target measurement in an attempt to achieve a Gaussian distribution. Final results are generated by a radiocarbon calculator that allows a user to select which target measurements to treat as samples, standards and blanks, and calculates the desired values (i.e. conventional radiocarbon age, percent modern carbon, etc.) with full error propagation. Currently, a Microsoft Access(R) relational database is being developed which will be integrated into the existing LabVIEW(R) control, filtering and calculation programs in order to streamline the process from sample submission to report generation, as well as improve quality control. Published by Elsevier B.V.

关键词： accelerator mass spectrometry data analysis LabVIEW (R)

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