CVAST - Centre for Visual Analytics Science and Technology

Aim

CVAST aims to design and  develop innovative methods for data interpretation to capture the daily flood of information in interactive visualizations and analyses. Scenarios that involve temporal properties of such data are in the focus of our scientific interest.

 

alternative webpage @ w-fFORTE

Publications

 

Duration
-
Funding

This project is funded by the Austrian Federal Ministry of Science, Research, and Economy (formerly known as Austrian Federal Ministry of Economy, Family and Youth) in the exceptional Laura Bassi Centres of Excellence initiative, project number: 822746 (Phase 1) /840262 (Phase 2).

Centres of Expertise - Laura Bassi

Contact
Status
finished

CVAST aims to design and  develop innovative methods for data interpretation to capture the daily flood of information in interactive visualizations and analyses. Scenarios that involve temporal properties of such data are in the focus of our scientific interest.

Due to the proliferating capabilities to generate and collect vast amounts of data and information we face the challenge that users and analysts get lost in irrelevant, or otherwise inappropriately processed or presented information. This phenomenon, commonly known as information deluge, overwhelms traditional methods of data analysis such as spreadsheets, ad-hoc queries, or simple visualizations. At the same time, intelligent usage of increasingly available data offers great opportunities to promote technological progress and business success. On this score, Visual Analytics is an emerging research discipline developing methods and technology that make the best possible use of huge information loads in a wide variety of applications. The basic idea is to appropriately combine the strengths of both, computers' and humans' information processing capabilities. To make complex information structures more comprehensible, facilitate new insights, and enable knowledge discovery, methods of visualization, intelligent data analysis, and mining form a symbiosis with the human user via interactive visual interfaces.

The goals of the Centre of Visual Analytics Science and Technology (CVAST) are twofold. The first goal is the integration of the outstanding capabilities of humans in terms of visual information exploration with the enormous processing power of computers to form a powerful knowledge discovery environment. The second goal is to scientifically assess the usability and utility of such discovery environments while bridging the gap between theory and practice for selected application scenarios.

Application scenarios that involve temporal properties are in the focus of our scientific interest. Time - in contrast to other quantitative data dimensions that are usually "flat" - has an inherent structure and distinct characteristics (calendar aspect, natural and social aspects, etc.) which increase its complexity dramatically and demand specialized Visual Analytics methods in order to support proper analysis and visualization. Our expected results will be Innovative, user-oriented, and task-specific Visual Analytics methods and tools with an assessment of their usability and utility. These methods will be used intertwinedly and iteratively to ease the explorative information discovery processes

An appropriate framework for these methods and tools. Their evaluation in 'real life' environments and examination of the information discovery process within several application scenarios. A new methodology to define and evaluate insights facilitated by these methods. Applying these methods within commercial applications to illustrate their business value and economic impacts

Publications

Christian Bors, "Facilitating Data Quality Assessment Utilizing Visual Analytics: Tackling Time, Metrics, Uncertainty, and Provenance", Institute of Visual Computing and Human-Centered Technology, vol. PhD, Dr.-techn., 2020.
Markus Bögl, "Visual Analysis of Periodic Time Series Data - Supporting Model Selection, Prediction, Imputation, and Outlier Detection Using Visual Analytics", Institute of Visual Computing and Human-Centered Technology, vol. PhD, Dr.-techn., 2020.
Roger Leite, Theresia Gschwandtner, Silvia Miksch, Simone Kriglstein, Margit Pohl, Erich Gstrein, Johannes Kuntner, "EVA: Visual Analytics to Identify Fraudulent Events", IEEE Transactions on Visualization and Computer Graphics, vol. 24, pp. 330 - 339, 2018. video
Alice Thud, Theresia Gschwandtner, Jagoda Walny, Jason Dykes, John Stasko, "Exploration and Explanation in Data-Driven Storytelling", Data-Driven Storytelling, 2018. paper
Fabian Schwarzinger, Andreas Roschal, Theresia Gschwandtner, "Sketching Temporal Uncertainty - An Exploratory User Study", EuroVis 2018 - Short Papers, Eurographics/IEEE VGTC Conference on Visualization, pp. 67-71, 2018. paper supplemental material
Christian Bors, Theresia Gschwandtner, Simone Kriglstein, Silvia Miksch, Margit Pohl, "Visual Interactive Creation, Customization, and Analysis of Data Quality Metrics", Journal of Data and Information Quality (JDIQ), vol. 10, pp. 3:1–3:26, 2018. paper
Davide Ceneda, Theresia Gschwandtner, Thorsten May, Silvia Miksch, Marc Streit, Christian Tominski, "Guidance or No Guidance? A Decision Tree Can Help", EuroVA: International Workshop on Visual Analytics, pp. 19–23, 2018.
Velitchko Filipov, Paolo Federico, Silvia Miksch, "CV3: Visual Exploration, Assessment, and Comparison of CVs", EuroVis 2018 - Posters, 2018.
Natalia Andrienko, Tim Lammarsch, Gennady Andrienko, Georg Fuchs, Daniel Keim, Silvia Miksch, Alexander Rind, "Viewing Visual Analytics as Model Building", Computer Graphics Forum, vol. 37, pp. 275–299, 2018.
Andreas Peterschofsky, Theresia Gschwandtner, "VoD - Understanding Structure, Content, and Quality of a Dataset", IEEE VIS Workshop on Visual Summarization and Report Generation: Beyond Scatter-Plots and Bar-Charts (VISREG 2018), 2018. paper
Theresia Gschwandtner, Oliver Erhart, "Know Your Enemy: Identifying Quality Problems of Time Series Data", IEEE Pacific Visualization Symposium (PacificVis '18), pp. 205-214, 2018.
Roger Leite, Theresia Gschwandtner, Silvia Miksch, Erich Gstrein, Johannes Kuntner, "Visual analytics for event detection: Focusing on fraud", Visual Informatics, Elsevier, vol. 2, 2018. paper
Theresia Gschwandtner, "Visual Analytics Meets Process Mining: Challenges and Opportunities", Fifth International Symposium on Data-Driven Process Discovery and Analysis, vol. 244, 2017.
Christian Bors, Markus Bögl, Theresia Gschwandtner, Silvia Miksch, "Visual Support for Rastering of Unequally Spaced Time Series", 10th International Symposium on Visual Information Communication and Interaction (VINCI), pp. 53-57, 2017. paper
Davide Ceneda, Theresia Gschwandtner, Thorsten May, Silvia Miksch, Hans-Jörg Schulz, Marc Streit, Christian Tominski, "Amending the Characterization of Guidance in Visual Analytics", ArXiv, vol. Human-computer Interaction, 2017.
Alexander Rind, Paolo Federico, Theresia Gschwandtner, Wolfgang Aigner, Jakob Doppler, Markus Wagner, "Visual Analytics of Electronic Health Records with a Focus on Time", New Perspectives in Medical Records: Meeting the Needs of Patients and Practitioners, pp. 65-77, 2017.
Davide Ceneda, Theresia Gschwandtner, Thorsten May, Silvia Miksch, Hans-Jörg Schulz, Marc Streit, Christian Tominski, "Characterizing Guidance in Visual Analytics", IEEE Transactions on Visualization and Computer Graphics, vol. 23, pp. 111-120, 2017.
Paolo Federico, "Visual Analytics of Dynamic Networks", Faculty of Informatics, vol. PhD in Computer Science, pp. 192, 2017.
Paolo Federico, Markus Wagner, Alexander Rind, Albert Amor-Amorós, Silvia Miksch, Wolfgang Aigner, "The Role of Explicit Knowledge: A Conceptual Model of Knowledge-Assisted Visual Analytics", Proceedings of the IEEE Conference on Visual Analytics Science and Technology (IEEE VAST 2017), 2017. Video Teaser
Markus Bögl, Peter Filzmoser, Theresia Gschwandtner, Tim Lammarsch, Roger Leite, Silvia Miksch, Alexander Rind, "Cycle Plot Revisited: Multivariate Outlier Detection Using a Distance-Based Abstraction", Computer Graphics Forum, vol. 36, pp. 227–238, 2017. Usage Scenario
Albert Amor-Amorós, Paolo Federico, Silvia Miksch, Sebastian Zambanini, Simon Brenner, Robert Sablatnig, "Visual Analytics for Multitemporal Aerial Image Georeferencing", 8th International EuroVis Workshop on Visual Analytics (EuroVA), pp. 55–59, 2017.
Christian Bors, Markus Bögl, Theresia Gschwandtner, Silvia Miksch, "Visual Support for Rastering of Unequally Spaced Time Series", Data Science, Statistics & Visualisation Conference (DSSV), 2017. paper
Hendrik Strobelt, Bilal Alsallakh, Joseph Botros, Peterson Brant, Mark Borowsky, Hanspeter Pfister, Alexander Lex, "Vials: Visualizing Alternative Splicing of Genes", IEEE Transactions of Visualization and Computer Graphics , vol. 22, pp. 399-408, 2016. paper Problem description
Theresia Gschwandtner, Markus Bögl, Paolo Federico, Silvia Miksch, "Visual Encodings of Temporal Uncertainty: A Comparative User Study", IEEE Transactions on Visualization and Computer Graphics, vol. 22, pp. 539 - 548, 2016.
Florian Windhager, Eva Mayr, Günther Schreder, Michael Smuc, Paolo Federico, Silvia Miksch, "Reframing Cultural Heritage Collections in a Visualization Framework of Space-Time Cubes", Proceedings of the 3rd International Workshop on Computational History (HistoInformatics2016), vol. 1632, pp. 20-24, 2016.