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Supporting the process of exploring and interpreting space-time multivariate patterns: the visual inquiry toolkit / J. Chen in Cartography and Geographic Information Science, vol 35 n° 1 (January 2008)
[article]
Titre : Supporting the process of exploring and interpreting space-time multivariate patterns: the visual inquiry toolkit Type de document : Article/Communication Auteurs : J. Chen, Auteur ; Alan M. MacEachren, Auteur ; D. Guo, Auteur Année de publication : 2008 Article en page(s) : pp 33 - 50 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] analyse de groupement
[Termes IGN] analyse visuelle
[Termes IGN] données spatiotemporelles
[Termes IGN] mise à l'échelle
[Termes IGN] reconnaissance de formes
[Termes IGN] visualisationRésumé : (Auteur) While many data sets carry geographic and temporal references, our ability to analyze these datasets lags behind our ability to collect them because of the challenges posed by both data complexity and tool scalability issues. This study develops a visual analytics approach that leverages human expertise with visual, computational, and cartographic methods to support the application of visual analytics to relatively large spatio-temporal, multivariate data sets. We develop and apply a variety of methods for data clustering, pattern searching, information visualization, and synthesis. By combining both human and machine strengths, this approach has a better chance to discover novel, relevant, and potentially useful information that is difficult to detect by any of the methods used in isolation. We demonstrate the effectiveness of the approach by applying the Visual Inquiry Toolkit we developed to analyze a data set containing geographically referenced, time-varying and multivariate data for U.S. technology industries. Copyright CaGISociety Numéro de notice : A2008-060 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1559/152304008783475689 En ligne : https://doi.org/10.1559/152304008783475689 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29055
in Cartography and Geographic Information Science > vol 35 n° 1 (January 2008) . - pp 33 - 50[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 032-08011 RAB Revue Centre de documentation En réserve L003 Disponible Visual analysis of network traffic – interactive monitoring, detection, and interpretation of security threats / Florian Mansmann (ca 2008)
Titre : Visual analysis of network traffic – interactive monitoring, detection, and interpretation of security threats Type de document : Thèse/HDR Auteurs : Florian Mansmann, Auteur Editeur : Konstanz : University of Konstanz Année de publication : ca 2008 Importance : 186 p. Format : 21 x 30 cm Note générale : bibliographie
Dissertation zur Erlangung des akademischen Grades des Doktors der Naturwissenschaften an der Universität Konstanz im Fachbereich Informatik und InformationswissenschaftLangues : Français (fre) Descripteur : [Vedettes matières IGN] Informatique
[Termes IGN] analyse multivariée
[Termes IGN] analyse visuelle
[Termes IGN] carte de Kohonen
[Termes IGN] classification par réseau neuronal
[Termes IGN] géovisualisation
[Termes IGN] graphe
[Termes IGN] internet
[Termes IGN] sécurité informatique
[Termes IGN] surveillance informatiqueRésumé : (auteur) The Internet has become a dangerous place: malicious code gets spread on personal computers across the world, creating botnets ready to attack the network infrastructure at any time. Monitoring network traffic and keeping track of the vast number of security incidents or other anomalies in the network are challenging tasks. While monitoring and intrusion detection systems are widely used to collect operational data in real-time, attempts to manually analyze their output at a fine-granular level are often tedious, require exhaustive human resources, or completely fail to provide the necessary insight due to the complexity and the volume of the underlying data. This dissertation represents an effort to complement automatic monitoring and intrusion detection systems with visual exploration interfaces that empower human analysts to gain deeper insight into large, complex, and dynamically changing data sets. In this context, one key aspect of visual analysis is the refinement of existing visualization methods to improve their scalability with respect to a) data volume, b) visual limitations of computer screens, and c) human perception capacities. In addition to that, developmet of innovative visualization metaphors for viewing network data is a further key aspect of this thesis. In particular, this dissertation deals with scalable visualization techniques for detailed analysis of large network time series. By grouping time series according to their logical intervals in pixel visualizations and by coloring them for better discrimination, our methods enable accurate comparisons of temporal aspects in network security data sets. In order to reveal the peculiarities of network traffic and distributed attacks with regard to the distribution of the participating hosts, a hierarchical map of the IP address space, which takes both geographical and topological aspects of the Internet into account, is proposed. Since visual clutter becomes an issue when naively connecting the major communication partners on top of this map, hierarchical edge bundles are used for grouping traffic links based on the map’s hierarchy, thereby facilitating a more scalable analysis of communication partners. Furthermore, the map is complemented by multivariate analysis techniques for visually studying the multidimensional nature of network traffic and security event data. Especially the interaction of the implemented prototypes reveals the ability of the proposed visualization methods to provide an overview, to relate communication partners, to zoom into regions of interest, and to retrieve detailed information. For an even more detailed analysis of hosts in the network, we introduce a graph-based approach to tracking behavioral changes of hosts and higher-level network entities. This information is particularly useful for detecting misbehaving computers within the local network infrastructure, which can otherwise substantially compromise the security of the network. To complete the comprehensive view on network traffic, a Self-Organizing Map was used to demonstrate the usefulness of visualization methods for analyzing not only structured network protocol data, but also unstructured information, e.g., textual context of email messages. By extracting features from the emails, the neuronal network algorithm clusters similar emails and is capable of distinguishing between spam and legitimate emails up to a certain extent. In the scope of this dissertation, the presented prototypes demonstrate the applicability of the proposed visualization methods in numerous case studies and reveal the exhaustless potential of their usage in combination with automatic detection methods. We are therefore confident that in the fields of network monitoring and security visual analytics applications will quickly find their way from research into practice by combining human background knowledge and intelligence with the speed and accuracy of computers. Numéro de notice : 17246 Affiliation des auteurs : non IGN Thématique : INFORMATIQUE Nature : Thèse étrangère Note de thèse : Dissertation : Informatique : Constance : 2008 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81637 Visual thinking for design / Colin Ware (2008)
Titre : Visual thinking for design Type de document : Monographie Auteurs : Colin Ware, Auteur Editeur : Burlington : Morgan Kaufmann Publishers Année de publication : 2008 Importance : 197 p. Format : 19 x 23 cm ISBN/ISSN/EAN : 978-0-12-370896-0 Langues : Anglais (eng) Descripteur : [Termes IGN] analyse visuelle
[Termes IGN] chromatopsie
[Termes IGN] cognition
[Termes IGN] données spatiotemporelles
[Termes IGN] représentation mentale
[Termes IGN] vision stéréoscopique
[Termes IGN] visualisation de données statistiques
[Vedettes matières IGN] GéovisualisationRésumé : (Editeur) Increasingly, designers need to present information in ways that aid their audience's thinking process. Fortunately, results from the relatively new science of human visual perception provide valuable guidance. In this book, Colin Ware takes what we now know about perception, cognition, and attention and transforms it into concrete advice that designers can directly apply. He demonstrates how designs can be considered as tools for cognition extensions of the viewer's brain in much the same way that a hammer is an extension of the user's hand. Experienced professional designers and students alike will learn how to maximize the power of the information tools for design for the people who use them. Copyright Elsevier Note de contenu : Preface
1-VISUAL QUERIES
- The Apparatus and Process of Seeing
- The Act of Perception
- Bottom-Up
- Top-Down
- Implications for Design
- Nested Loops
- Distributed Cognition
- Conclusion
2-WHAT WE CAN EASILY SEE
- The Machinery of Low-Level Feature Analysis
- What Stands Out = What We Can Bias for
- Visual Search Strategies and Skills
- Using Multiscale Structure to Design for Search
- Conclusion
3-STRUCTURING TWO-DIMENSIONAL SPACE
- 2.5D Space
- The Pattern-Processing Machinery
- The Binding Problem: Features to Contours
- The Generalized Contour
- Texture Regions
- Interference and Selective Tuning
- Patterns, Channels, and Attention
- Intermediate Patterns
- Pattern Learning '
- Visual Pattern Queries and the Apprehendable Chunk
- Spatial Layout
- Pattern for Design
- Examples of Pattern Queries with Common Graphical Artifacts
- Semantic Pattern Mappings
4-COLOR
- The Color-Processing Machinery
- Opponent Process Theory
- Channel Properties
- Principles for Design
- Color-Coding Information
- Emphasis and Highlighting
- Color Sequences
- Color on Shaded Surfaces
- Semantics of Color
- Conclusion
5-GETTING THE INFORMATION: VISUAL SPACE AND TIME
- Depth Perception and Cue Theory
- 2.5D DESIGN
- Affordances
- The Where Pathway
- Artificial Interactive Spaces
- Space Traversal and Cognitive Costs
- Conclusion
6-VISUAL OBJECTS, WORDS, AND MEANING
- The Inferotemporal Cortex and the What Channel
- Generalized Views from Patterns
- Structured Objects
- Gist and Scene Perception
- Visual and Verbal Working Memory
- Thinking in Action: Receiving a Cup of Coffee
- Elaborations and Implications for Design
- Novelty
- Images as Symbols
- Meaning and Emotion
- Imagery and Desire
- Conclusion
7-VISUAL AND VERBAL NARRATIVE
- Visual Thinking Versus Language-Based Thinking
- Comparing and Contrasting the Verbal and Written Modes
- Linking Words and Images Through Diexis
- PowerPoint Presentations and Pointing
- Mirror Neurons: Copycat Cells
- Visual Narrative: Capturing the Cognitive Thread
- Cartoons and Narrative Diagrams
- Conclusion
8-CREATIVE META-SEEING
- Mental Imagery
- The Magic of the Scribble
- Diagrams are Ideas Made Concrete
- Requirements and Early Design
- The Creative Design Loop
- Visual Skill Development
- Conclusion
9-THE DANCE OF MEANING
- Review
- Implications
- Design to Support Pattern Finding
- Optimizing the Cognitive Process
- Learning and the Economics of Cognition
- Attention and the Cognitive Thread
- What's Next?Numéro de notice : 15453 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62722 Évaluation des contrastes colorés en cartographie par expertise / Elodie Buard in Le monde des cartes, n° 194 (décembre 2007)
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Titre : Évaluation des contrastes colorés en cartographie par expertise Type de document : Article/Communication Auteurs : Elodie Buard , Auteur ; Anne Ruas , Auteur Année de publication : 2007 Article en page(s) : pp 25 - 32 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] analyse visuelle
[Termes IGN] cartographie automatique
[Termes IGN] cartographie par internet
[Termes IGN] contraste de couleurs
[Termes IGN] couleur (rédaction cartographique)
[Termes IGN] lisibilité perceptiveRésumé : (Auteur) Cet article présente notre proposition de protocole de test destiné à des experts pour évaluer les contrastes colorés dans une carte. Les notes de contraste de teinte et de clarté attribuées sont analysées dans le but de recalculer les matrices de contraste utilisées pour les calculs automatiques de contrastes dans une carte. Copyright CFC Numéro de notice : A2007-575 Affiliation des auteurs : IGN (1940-2011) Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28938
in Le monde des cartes > n° 194 (décembre 2007) . - pp 25 - 32[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 021-07041 RAB Revue Centre de documentation En réserve L003 Disponible 021-07042 RAB Revue Centre de documentation En réserve L003 Disponible Geovisual analytics for decision support setting the research agenda / Gennady Adrienko in International journal of geographical information science IJGIS, vol 21 n° 8 (september 2007)
[article]
Titre : Geovisual analytics for decision support setting the research agenda Type de document : Article/Communication Auteurs : Gennady Adrienko, Auteur ; Natalia Adrienko, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 839 - 857 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] aide à la décision
[Termes IGN] analyse visuelle
[Termes IGN] exploration de données
[Termes IGN] information géographique
[Termes IGN] interface utilisateur
[Termes IGN] outil d'aide à la décision
[Termes IGN] recherche interdisciplinaire
[Termes IGN] représentation mentale spatiale
[Termes IGN] sciences cognitives
[Termes IGN] visualisationRésumé : (Auteur) This article summarizes the results of the workshop on Visualization, Analytics & Spatial Decision Support, which took place at the GIScience conference in September 2006. The discussions at the workshop and analysis of the state of the art have revealed a need in concerted cross-disciplinary efforts to achieve substantial progress in supporting space-related decision making. The size and complexity of real-life problems together with their ill-defined nature call for a true synergy between the power of computational techniques and the human capabilities to analyze, envision, reason, and deliberate. Existing methods and tools are yet far from enabling this synergy. Appropriate methods can only appear as a result of a focused research based on the achievements in the fields of geovisualization and information visualization, human-computer interaction, geographic information science, operations research, data mining and machine learning, decision science, cognitive science, and other disciplines. The name 'Geovisual Analytics for Spatial Decision Support' suggested for this new research direction emphasizes the importance of visualization and interactive visual interfaces and the link with the emerging research discipline of Visual Analytics. This article, as well as the whole special issue, is meant to attract the attention of scientists with relevant expertise and interests to the major challenges requiring multidisciplinary efforts and to promote the establishment of a dedicated research community where an appropriate range of competences is combined with an appropriate breadth of thinking. Copyright Taylor & Francis Numéro de notice : A2007-320 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701349011 En ligne : https://doi.org/10.1080/13658810701349011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28683
in International journal of geographical information science IJGIS > vol 21 n° 8 (september 2007) . - pp 839 - 857[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-07051 RAB Revue Centre de documentation En réserve L003 Disponible 079-07052 RAB Revue Centre de documentation En réserve L003 Disponible Highlighting space-time patterns: effective visual encoding for interactive decision-making / Mike Sips in International journal of geographical information science IJGIS, vol 21 n° 8 (september 2007)PermalinkLeveraging the potential of geospatial annotations for collaboration: a communication theory perspective / S. Hopper in International journal of geographical information science IJGIS, vol 21 n° 8 (september 2007)PermalinkThe effectiveness of richness, diversity and dominance textural indices when applied on digital ground photographs using a GIS for landscape visual analysis purposes / A. Tsouchlaraki in Geocarto international, vol 22 n° 3 (September - November 2007)PermalinkVisual analytics of spatial interaction patterns for pandemic decision support / D. Guo in International journal of geographical information science IJGIS, vol 21 n° 8 (september 2007)Permalinkvol 42 n° 2 - June 2007 - Geovisualiszation and visual analytics (Bulletin de Cartographica) / University of TorontoPermalinkInterprétation visuelle des images satellitaires (Landsat TM, SPOT 4, IRS et Ikonos) et mouvements de masse : cas d'étude au Liban / C. Abdallah in Photo interprétation, vol 42 n° 1 (Mars 2006)PermalinkResource management information systems / K.R. Mccloy (2006)PermalinkThe recognition of road network from high-resolution satellite remotely sensed data using image morphological characteristics / C. Zhu in International Journal of Remote Sensing IJRS, vol 26 n° 24 (December 2005)PermalinkMapping forest degradation in the Eastern Amazon SPOT 4 through spectral mixture models / Cristiano B. Souza in Remote sensing of environment, vol 87 n° 4 (15/11/2003)PermalinkStability of the surface generated from distributed points of uncertain location / Yukio Sadahiro in International journal of geographical information science IJGIS, vol 17 n° 2 (march 2003)Permalink