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检索条件"任意字段=Conference on Visual Data Exploration and Analysis II"

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Interactive visual analysis of hierarchical enterprise data

Interactive visual analysis of hierarchical enterprise data

引用

12th IEEE conference on Commerce and Enterprise Computing, CEC 2010

作者： Chan, Yu-Hsuan Keeton, Kimberly Ma, Kwan-Liu University of California Davis CA United States Hewlett-Packard Labs. United States

ISBN: (纸本)9780769542287

In this paper, we present an interactive visual technique for analyzing and understanding hierarchical data, which we have applied to analyzing a corpus of technical reports produced by a corporate research laboratory. The analysis begins by selecting a known entity, such as a topic, a report, or a person, and then incrementally adds other entities to the graph based on known relations. As this bottom-up knowledge building process proceeds, meaningful graph structure may appear and reveal previously unknown relations. The ontology of the data, which represents the types of entities in the data and all possible relations among them, is displayed as a guide to the analyst in the process. The analyst may interact with the ontology graph or the data graph directly. In addition, we provide a set of filtering, searching, and abstraction methods for the analyst to manage the complexity of the graph. In contrast to a top-down approach, which usually starts with an overview of the whole data set for exploration, a bottom-up approach is generally more efficient, because it often only touches a very small fraction of the data. We present several case studies to demonstrate the efficacy of this interactive graph-based analysis technique for both intra- and inter-hierarchy analysis. © 2010 IEEE.

关键词： Research laboratories

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visual Discovery in Multivariate Binary data

Visual Discovery in Multivariate Binary Data

引用

conference on visualization and data analysis 2010

作者： Kovalerchuk, Boris Delizy, Florian Riggs, Logan Vityaev, Evgenii Cent Washington Univ Dept Comp Sci Ellensburg WA 98926 USA Russian Acad Sci Inst Math Novosibirsk 630090 Russia

ISBN: (纸本)9780819479235

This paper presents the concept of Monotone Boolean Function visual Analytics (MBFVA) and its application to the medical domain. The medical application is concerned with discovering breast cancer diagnostic rules (i) interactively with a radiologist, (ii) analytically with data mining algorithms, and (iii) visually. The coordinated visualization of these rules opens an opportunity to coordinate the rules, and to come up with rules that are meaningful for the expert in the field, and are confirmed with the database. This paper shows how to represent and visualize binary multivariate data in 2-D and 3-D. This representation preserves the structural relations that exist in multivariate data. It creates a new opportunity to guide the visual discovery of unknown patterns in the data. In particular, the structural representation allows us to convert a complex border between the patterns in multidimensional space into visual 2-D and 3-D forms. This decreases the information overload on the user. The visualization shows not only the border between classes, but also shows a location of the case of interest relative to the border between the patterns. A user does not need to see the thousands of previous cases that have been used to build a border between the patterns. If the abnormal case is deeply inside in the abnormal area, far away from the border between "normal" and "abnormal" patterns, then this shows that this case is very abnormal and needs immediate attention. The paper concludes with the outline of the scaling of the algorithm for the large data sets.

关键词： visualization data Mining visual discovery Monotone chains

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visual market sector analysis for financial time series data

Visual market sector analysis for financial time series data

引用

1st IEEE conference on visual Analytics Science and Technology, VAST 10

作者： Ziegler, Hartmut Jenny, Marco Gruse, Tino Keim, Daniel A. University of Konstanz Germany

ISBN: (纸本)9781424494866

The massive amount of financial time series data that originates from the stock market generates large amounts of complex data of high interest. However, adequate solutions that can effectively handle the information in order to gain insight and to understand the market mechanisms are rare. In this paper, we present two techniques and applications that enable the user to interactively analyze large amounts of time series data in real-time in order to get insight into the development of assets, market sectors, countries, and the financial market as a whole. The first technique allows users to quickly analyze combinations of single assets, market sectors as well as countries, compare them to each other, and to visually discover the periods of time where market sectors and countries get into turbulence. The second application clusters a selection of large amounts of financial time series data according to their similarity, and analyzes the distribution of the assets among market sectors. This allows users to identify the characteristic graphs which are representative for the development of a particular market sector, and also to identify the assets which behave considerably differently compared to other assets in the same sector. Both applications allow the user to perform investigative exploration techniques and interactive visual analysis in real-time. ©2010 IEEE.

关键词： Financial markets

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visual analysis of code security 10

Visual analysis of code security

引用

Proceedings of the Seventh International Symposium on visualization for Cyber Security

作者： Goodall, John R. Radwan, Hassan Halseth, Lenny Secure Decisions Division of Applied Visions Inc. 6 Bayview Ave. Northport NY 11768 United States Applied Visions Inc. 6 Bayview Ave. Northport NY 11768 United States

ISBN: (纸本)9781450300131

To help increase the confidence that software is secure, researchers and vendors have developed different kinds of automated software security analysis tools. These tools analyze software for weaknesses and vulnerabilities, but the individual tools catch different vulnerabilities and produce voluminous data with many false positives. This paper describes a system that brings together the results of disparate software analysis tools into a visual environment to support the triage and exploration of code vulnerabilities. Our system allows software developers to explore vulnerability results to uncover hidden trends, triage the most important code weaknesses, and show who is responsible for introducing software vulnerabilities. By correlating and normalizing multiple software analysis tools' data, the overall vulnerability detection coverage of software is increased. A visual overview and powerful interaction allows the user to focus attention on the most pressing vulnerabilities within huge volumes of data, and streamlines the secure software development workflow through integration with development tools. © 2010 ACM.

关键词： data visualization

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Tracing genealogical data with TimeNets 10

Tracing genealogical data with TimeNets

引用

Proceedings of the International conference on Advanced visual Interfaces

作者： Kim, Nam Wook Card, Stuart K. Heer, Jeffrey Computer Science Department Stanford University United States

ISBN: (纸本)9781450300766

We present TimeNets, a new visualization technique for genealogical data. Most genealogical diagrams prioritize the display of generational relations. To enable analysis of families over time, TimeNets prioritize temporal relationships in addition to family structure. Individuals are represented using timelines that converge and diverge to indicate marriage and divorce;directional edges connect parents and children. This representation both facilitates perception of temporal trends and provides a substrate for communicating nonhierarchical patterns such as divorce, remarriage, and plural marriage. We also apply degree-of-interest techniques to enable scalable, interactive exploration. We present our design decisions, layout algorithm, and a study finding that TimeNets accelerate analysis tasks involving temporal data. Copyright © 2010 ACM.

关键词： visualization

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Ocean of Information: Fusing Aggregate & Individual Dynamics for Metropolitan analysis 10

Ocean of Information: Fusing Aggregate & Individual Dynamics...

引用

Proceedings of the 14th ACM International conference on Intelligent User Interfaces

作者： Martino, Mauro Calabrese, Francesco Di Lorenzo, Giusy Andris, Clio Liu, Liang Ratti, Carlo MIT Senseable City Lab Cambridge MA 02139 USA

ISBN: (纸本)9781605585154

In this paper, we propose a tool to explore human movement dynamics in a Metropolitan Area. By analyzing a mass of individual cell phone traces, we build a Human-City Interaction System for understanding urban mobility patterns at different user-controlled temporal and geographic scales. We solve the problems that are found in available tools for spatio-temporal analysis, by allowing seamless manipulability and introducing a simultaneous\multi-scale visualization of individual and aggregate flows. Our tool is built to support the exploration and discovery of urban mobility patterns and the daily interactions of millions of people. Moreover, we implement an intelligent algorithm to evaluate the level of mobility homophily of people moving from place to place.

关键词： Graph visualization exploratory spatial data analysis visual analysis intelligent human information interaction cellphone data analysis

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Critical region analysis of scalar fields in arbitrary dimensions

Critical region analysis of scalar fields in arbitrary dimen...

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conference on visualization and data analysis 2010

作者： Allili, Madjid Ethier, Marc Kaczynski, Tomasz Bishops Univ 2600 Coll St Sherbrooke PQ J1M 1Z7 Canada Univ Sherbrooke Sherbrooke PQ J1K 2R1 Canada

ISBN: (纸本)9780819479235

The exploration of multidimensional scalar fields is commonly based on the knowledge of the topology of their isosurfaces. The latter is established through the analysis of critical regions of the studied fields. A new method, based on homology theory, for the detection and classification of critical regions in multidimensional scalar fields is proposed in this paper. The use of computational homology provides an efficient and successful algorithm that works in all dimensions and allows to generalize visual classification techniques based solely on the notion of connectedness which appears insufficient in higher dimensions. We present the algorithm, discuss details of its implementation, and illustrate it by experimentations in two, three, and four dimensional spaces.

关键词： Height fields critical regions isosurfaces homology Morse index Conley index

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visualising Virtual Learning Environments: Case Studies of the Website exploration Tool

Visualising Virtual Learning Environments: Case Studies of t...

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14th International conference on Information visualisation (IV)

作者： Pascual-Cid, V. Vigentini, L. Quixal, M. Univ Pompeu Fabra Barcelona Spain Barcelona Media Innovat Ctr Barcelona Spain Univ Edinburgh Edinburgh Midlothian Scotland

ISBN: (纸本)9780769541655

In this paper we describe the long term evaluation of the Website exploration Tool (WET), an exploratory system for visualising web data, through the assessment of two Virtual Learning Environments (VLE). VLEs provide log files that can be studied with web mining techniques to understand the behaviour of the students and consequently improve the pedagogy. However, statistical metrics are not always easy to interpret for the educators, which suggests the need to develop novel approaches for the easy discovery of usage patterns. The integration of WET in the assessment process of two VLEs gave us the opportunity to conduct long-term case studies that supported the evaluation of the visual approaches used in our tool. Our main contributions are the description of the benefits of such approaches for the analysis of VLEs as well as recommended features for supporting this task, and a summary of the main findings from our case studies.

关键词： Infovis evaluation Virtual Learning Environments Web Mining

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Proceedings - 2010 14th International conference Information visualisation, IV 2010

Proceedings - 2010 14th International Conference Information...

引用

2010 14th International conference Information visualisation, IV 2010

ISBN: (纸本)9780769541655

The proceedings contain 95 papers. The topics discussed include: automatic application of the data-state model in data-flow contexts;a visualization technique for access patterns and link structures of web sites;a 3D visualization technique for large scale time-varying data;drawing clustered bipartite graphs in multi-circular style;network visualization of human and machine-based educational standard assignment;the network lens: interactive exploration of multivariate networks using visual filtering;preserving coherent illumination in style transfer functions for volume rendering;extracting events from spatial time series;an interactive visualization framework for time-series of web graphs in a 3D environment;and combining visual analytics and content based data retrieval technology for efficient data analysis.

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Environmental management and visual mapping as alternative monitoring in heterogeneous areas

Environmental management and visual mapping as alternative m...

引用

SPE International conference on Health, Safety and Environment in Oil and Gas exploration and Production 2010

作者： Jensen, Tor Pinturier, Laurence Maryvonne Ulfsnes, Amund Moltu, Ulf Einar DNV Australia TOTAL E and P NORGE AS Norway

ISBN: (纸本)9781617384127

Environmental Baseline Study (EBS) in Norway has been carried out as traditional sediment sampling at the planned production site for biological, chemical and physical analysis prior to production drilling according to regulation. The extent of such study should be related to the risk of impact from the planned operations. This baseline can then be used as a reference for future environmental monitoring. Equally important is the contribution to environmental impact assessments defining the measures to eliminate, limit or offsetting the adverse effects that the operation could generate. For the Victoria location, a traditional EBS based on sediment sampling was not considered beneficial due to both anticipated coarse sediment as well as presence of corals at the elevated ridge south west in the area. A comprehensive study including sediment analysis, visual mapping with ROV (Remotely Operated Vehicle), current measurements and interpretation of side scan sonar data and bathymetry data was therefore applied to meet the challenges at Victoria. The video lines covered more than 130 km of sea bed and the interpretation enabled categorisation of the seabed in soft bottom, rocks and reef building corals. Still photos and HD videos of the major corals structures were used to identify the dominant species and assess their health status (dead, poor, live). Results were transferred to a GIS to define the optimal position of anchoring corridors minimising interference with sensitive ecosystems. The combination of the different methods used in the EBS gives a thorough coverage of the area. The amount and quality of data gathered also beyond the location of the appraisal well location, allow a proper assessment of the sensitivity of the area at the field scale. Based on the experiences gained, it is recommended that future monitoring in areas comprising different habitats (soft bottom, rocky habitat etc.) apply different dedicated monitoring methods. For the visual monitoring a r

关键词： Turbidity

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