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1st International conference on Spatial Statistics - Mapping Global Change

作者： Li, Hongsheng Wang, Yingjie Han, Jiafu Yu, Zhuoyuan Chinese Acad Sci LREIS Inst Geog Sci & Nat Resources Res Beijing 100864 Peoples R China

Based on registered individual floating population data from 2005 to 2008 of Yiwu, the phenomena that population floating to Yiwu City from 34 province and 91 counties in Jiangxi provinces is analyzed. The study aims at analyzing the "pull" forces of Yiwu City and developing migration models for understanding determinants factors of population migration/floating into Yiwu City from other areas in China. The spatial layout of Yiwu's pull forces is proved as a V-shaped pattern consisting of the two axes by using explorative spatial data analysis and map visualization method. The migration models with (model 3) or without (model 2) migration stock are presented and estimated using standard linear regression model, spatial error model as well as spatial lag model at the county scale in Jiangxi province. Based on the likelihood statistics, the AIC and the Moran's I statistics of residuals, the model with migration stock provides an improved fit over the model without migration stock. The correlation between migration ratio and man land ratio is significant at the 0.5 level according to estimates of model 3 and spatial version of model 2. All the three estimates of model 2 and the OLS results of model 3 confirm the distance-decay effect while results from the spatial version of model 3 failed to support the distance rule in population floating. Contrary to the previous studies at the provincial level, the correlation between per capital net income of rural labor forces and migration ratio is not significant according to the three versions of the two models due to the small disparities of income within the counties in Jiangxi. Examination of specification tests in spatial version of model 3 indicates that there is less significant spatial error dependence in the spatial lag models than spatial lag dependence in the error models, further suggesting a preference for the lag model. Model 2 does not suggest any preference for choosing spatial error model and spatial lag model.

关键词： Floating population Origin distribution visualization Spatial regression model Yiwu City GIS

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Real-time multi-scale brain data acquisition, assembly, and analysis using an end-to-end OptIPuter

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FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE 2006年第8期22卷 1032-1039页

作者： Singh, Rajvikram Schwarz, Nicholas Taesombut, Nut Lee, David Jeong, Byungil Renambot, Luc Lin, Abel W. West, Ruth Otsuka, Hirornu Naito, Sei Peltier, Steven T. Martone, Maryann E. Nozaki, Kazunori Leigh, Jason Ellisman, Mark H. Univ Illinois Elect Visualizat Lab Chicago IL USA Univ Calif San Diego Natl Ctr Micoscopy & Imaging Res San Diego CA USA Univ Illinois Elect Visualizat Lab Chicago IL USA Univ Calif San Diego Dept Comp Sci & Engn San Diego CA USA Osaka Univ Cybermedia Ctr Osaka Japan KDDI Corp Chiyoda Ku Tokyo 1028460 Japan KDDI Labs Fujimino Saitama 3568502 Japan

At iGrid 2005 we demonstrated the transparent operation of a biology experiment on a test-bed of globally distributed visualization, storage, computational, and network resources. These resources were bundled into a unified platform by utilizing dynamic lambda allocation, high bandwidth protocols for optical networks, a Distributed Virtual Computer (DVC) [N. Taesombut, A. Chien, Distributed Virtual Computer (DVC): Simplifying the development of high performance grid applications, in: Proceedings of the Workshop on Grids and Advanced Networks, GAN 04, Chicago, IL, April 2004 (held in conjunction with the IEEE Cluster Computing and the Grid (CCGrid2004) conference)], and applications running over the Scalable Adaptive Graphics Environment (SAGE) [L. Renambot, A. Rao, R. Singh, B. Jeong, N. Krishnaprasad, V. Vishwanath, V. Chandrasekhar, N. Schwarz, A. Spale, C. Zhang, G. Goldman, J. Leigh, A. Johnson, SAGE: The Scalable Adaptive Graphics Environment, in: Proceedings of WACE 2004, 23-24 September 2004, Nice, France, 2004]. Using these layered technologies we ran a multi-scale correlated microscopy experiment [M.E. Maryann, T.J. Deerinck, N. Yamada, E. Bushong, H. Ellisman Mark, Correlated 3D light and electron microscopy: Use of high voltage electron microscopy and electron tomography for imaging large biological structures, Journal of Histotechnology 23 (3) (2000) 261-270], where biologists imaged samples with scales ranging from 20X to 5000X in progressively increasing magnification. This allows the scientists to zoom in from entire complex systems such as a rat cerebellum to individual spiny dendrites. The images used spanned multiple modalities of imaging and specimen preparation, thus providing context at every level and allowing the scientists to better understand the biological structures. This demonstration attempts to define an infrastructure based on OptIPuter components which would aid the development and design of collaborative scientific experiments, appli

关键词： graphics clusters multi-scale correlated microscopy montage images HDTV streaming telescience tile displays tiled displays optical networks scientific visualization remote instrumentation

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Real-Time Aerodynamic Flow and data visualization in an Interactive Virtual Environment

Real-Time Aerodynamic Flow and Data Visualization in an Inte...

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IEEE Instrumentation and Measurement Technology conference

作者： R.J. Schwartz G.A. Fleming Swales AeroSpace NASA-Langley Research Center Hampton VA USA NASA-Langley Research Center Hampton VA USA

Significant advances have been made to nonintrusive flow field diagnostics in the past decade. Camera based techniques are now capable of determining physical qualities such as surface deformation, surface pressure and temperature, flow velocities, and molecular species concentration. In each case, extracting the pertinent information from the large volume of acquired data requires powerful and efficient data visualization tools. The additional requirement for real time visualization is fueled by an increased emphasis on minimizing test time in expensive facilities. This paper addresses a capability titled LiveView3D, which is the first step in the development phase of an in depth, real time data visualization and analysis tool for use in aerospace testing facilities

关键词： Aerodynamics data visualization Virtual environment Testing Image motion analysis Optical vortices Optical scattering Laser modes NASA Cameras

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User evaluations of interactive multimodal data presentation

User evaluations of interactive multimodal data presentation

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International conference on Information Visualisation (IV)

作者： V. Salvador R. Minghim H. Levkowitz Institute of Mathematics and Computer Science University of São Paulo Brazil University of Massachusetts Lowell USA University of Massachussetts Lowell USA

A set of user evaluation studies were performed to test hypotheses about the efficacy and value of the use of sonification by itself and together with visualization to improve the process of interactive data exploration. Our results show that, in some cases, sonification yielded more accurate analysis results than visualization, and when combined with visualization, yield much better results than either one (visualization or sonification) yielded separately. That supports sonification as a valuable and promising tool that should be further studied as a complement to visualization systems.

关键词： data visualization Mathematics Computer science Performance evaluation Testing data analysis Performance analysis Information analysis Guidelines Demography

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Direct visualization of transient absorption by real-time pump-probe imaging spectroscopy

Direct visualization of transient absorption by real-time pu...

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14th International conference on Ultrafast Phenomena

作者： Furukawa, N Mair, CE Kleiman, VD Takeda, J Yokohama Natl Univ Grad Sch Engn Dept Phys Yokohama Kanagawa 2408501 Japan

We report a new method to visualize ultrafast transient absorption of materials. This method enables us to simultaneously map frequency- and time-resolved absorbance changes with femtosecond time resolution in real-time.

ISBN: (纸本)3540241108

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User interface design of interactive data mining in parallel environment

User interface design of interactive data mining in parallel...

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Proceedings of the International conference on Active Media Technology, AMT

作者： Z. Liu X. Ren C. Zhang Nagasaki Institute of Applied Science Japan Kochi University of Technology Japan Kumamoto University Japan

A useful data mining not only be efficient, but also be effective. For data mining algorithms, especially for classification, cluster analysis, decision tree, etc., an interactive processing between machine and user is necessary. Applying parallel and distributed computing technology, the object of efficient data mining can be reached. Together with parallel visualization platform, an interactive interface is essential in interactive data mining. In this paper, a scheme of interactive data mining support system in parallel computing environment is described. The design of interface in the system is illustrated.

关键词： User interfaces data mining Classification algorithms Clustering algorithms Classification tree analysis Algorithm design and analysis Decision trees Distributed computing data visualization Parallel processing

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visualization: detecting societal behaviors

Visualization: detecting societal behaviors

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MILCOM, Military Communications conference

作者： E. Koutsofios R. Truscott AT and T Research Laboratories Florham Park NJ USA

An interesting area of study has been developing technologies to assist knowledge discovery with the human in the loop. It has been our experience that humans are adept at discovering patterns and anomalies, while automated systems are preferred for managing the found anomalies. It has also been our view that tools intrinsically limit the questions that can be asked, and therefore limit what can be understood about data. A particular niche we have investigated is the detection of societal behaviors, or ripples, in response to external events. The goal is to detect ripples as surrogates for the underlying event. A societal ripple is a change in personal activities or transactions. These ripples may be found in many data streams including retail transactions and communications. We have developed a data fusion, analysis and visualization prototype internally named SWIFT. This technology provides a data agnostic platform that can fuse multiple real-time data streams, provide connectivity to analysis capabilities and view current and historical animations of selected data dimensions. By applying this technology we can observe how society reacts to certain events and how behaviors differ between various events. By enabling interactive investigation of anomalies with a 100% sampling of data, we have discovered many hidden anomalies that are beneath the "radar screen"

关键词： data visualization Humans Information analysis Pattern analysis Displays data mining Event detection data analysis Prototypes Web pages

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visualization analysis of Land Use Dynamics and Landscape Type Transitions in the Yangtze River Delta Based on Geographic Information Big data 9

Visualization Analysis of Land Use Dynamics and Landscape Ty...

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9th IEEE International conference on Computational Intelligence and Applications, ICCIA 2024

作者： Zhang, Wei Zhai, Duanqiang Mao, Yanyun School of Architecture Tianjin University Tianjin China Zhejiang University Hangzhou ZJU-STEC Urban Development and Planning Innovation Joint Research Center Zhejiang China College of Architecture and Urban Planning Tongji University Shanghai China Shanghai Tongji Urban Planning & Design Institute Co. Ltd. Shanghai China Urban Mobility Institute Tongji University Shanghai China

ISBN: (纸本)9798350352214

Studying the spatiotemporal changes in land use and landscape types is a crucial method for analyzing human utilization of natural resources. Geographic information big data analysis can effectively enhance rational land resource allocation and improve the utilization rate of territorial space resources. With China's rapid socio-economic development in recent years, significant changes in land use and landscape types have occurred in many regions, profoundly impacting urban construction and development. Taking the Yangtze River Delta in China as an example, this study proposes a method for visualizing land use dynamics and landscape type transitions based on geographic information big data and applies it to an empirical analysis from 2000 to 2020. The study shows a continuous increase in construction land, a decline in arable land, a slight decrease in forest land, and scattered, insignificant changes in grassland and water bodies. The main areas of landscape type transitions are around Taihu Lake and Hangzhou Bay, with the largest transition type being the conversion of arable land to construction land, severely affecting agricultural space. Future land use patterns should focus on balancing urban development with the protection of ecological and agricultural spaces. © 2024 IEEE.

关键词： Abiotic

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Advances in Neural Information Processing Systems 17 - Proceedings of the 2004 conference, NIPS 2004

Advances in Neural Information Processing Systems 17 - Proce...

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18th Annual conference on Neural Information Processing Systems, NIPS 2004

ISBN: (纸本)0262195348

The proceedings contain 207 papers. The topics discussed include: two-dimensional linear discriminant analysis;efficient kernel machines using the improved fast Gauss transform;temporal-difference networks;an auditory paradigm for brain-computer interfaces;a large deviation bound for the area under the ROC curve;intrinsically motivated reinforcement learning;inference, attention, and decision in a Bayesian neural architecture;the power of selective memory: self-bounded learning of prediction suffix trees;Markov networks for detecting overlapping elements in sequence data;machine learning applied to perception: decision-images for gender classification;sampling methods for unsupervised learning;intrinsically motivated reinforcement learning;active learning for anomaly and rare-category detection;parametric embedding for class visualization;and instance-based relevance feedback for image retrieval.

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Urban reconnaissance with an airborne laser radar

Urban reconnaissance with an airborne laser radar

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conference on Laser Radar Technology and Applications X

作者： Morrison, RA Turner, JT Barwick, M Hardaway, GM Geo Spatial Technol Inc Lorton VA 22079 USA

ISBN: (纸本)0819457760

Over the past five years the potential utility for 3-D laser radar (LIDAR) to support urban warfare initiatives has grown rapidly. Currently, every major U.S. defense agency, Supporting geo-spatial analysis and urban warfare, is now actively using or investigating the potential for high-resolution 3-D LIDAR terrain in future operations. Airborne LIDAR data are now commonly collected with an average spatial posting of I meter to 5 cm. The Joint Programs, Sustainment and Development Project Office (JPSD-PO) has contributed significantly to the rapid collection of high-resolution urban terrain using LIDAR sensor technology. JPSD has collected LIDAR data in Support of Department of Defense activities throughout the world. Currently, the Urban Recon ACTD is creating the next generation LIDAR sensors for use in tactical environments. Advancements in flash LIDAR data collection and the integration of a complete LIDAR sensor under the Urban Recon ACTD will be examined.

关键词： flash LIDAR urban recon ACTD rapid terrain visualization ACTD

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