Research in visualization and data science, including visual data science, interactive visual data exploration and analysis, and the application of visualization to a broad range of applications. 

Teaching classes in computer science with a special focus on visualization, computer graphics, and data science.  

Academic article

• Krešimir Matković; Rainer Splechtna; Denis Grašanin et al. (2025). CrossSet: Unveiling the Complex Interplay of Two Set-typed Dimensions in Multivariate Data. (external link)
• Ove Daae Lampe; Ivan Viola; Nathalie Reuter et al. (2007). Two-Level Approach to Efficient Visualization of Protein Dynamics. (external link)
• Cagatay Turkay; Alexander Lex; Marc Streit et al. (2014). Characterizing cancer subtypes using dual analysis in Caleydo StratomeX. (external link)
• Rainer Splechtna; Denis Gračanin; Goran Todorović et al. (2023). Interactive Visual Analysis of Structure-borne Noise Data. (external link)
• Cagatay Turkay; Aidan Slingsby; Helwig Hauser et al. (2014). Attribute signatures: Dynamic visual summaries for analyzing multivariate geographical data. (external link)
• Kresimir Matkovic; Denis Gracanin; Helwig Hauser (2019). Visual analytics for simulation ensembles. (external link)
• Kresimir Matkovic; Hrvoje Abraham; Mario Jelovic et al. (2017). Quantitative Externalization of Visual Data Analysis Results Using Local Regression Models. (external link)
• Wolfgang Freiler; Kresimir Matkovic; Helwig Hauser (2008). Interactive Visual Analysis of Set-Typed Data. (external link)
• Thomas Höllt; Anna Vilanova; Nicola Pezzotti et al. (2019). Focus+context exploration of hierarchical embeddings. (external link)
• Cagatay Turkay; Erdem Kaya; Selim Balcisoy et al. (2017). Designing Progressive and Interactive Analytics Processes for High-Dimensional Data Analysis. (external link)
• Florian Ladstädter; Andrea Steiner; Bettina Lackner et al. (2010). Exploration of Climate Data Using Interactive Visualization. (external link)
• Johannes Kehrer; Peter Filzmoser; Helwig Hauser (2010). Brushing moments in interactive visual analysis. (external link)
• Krešimir Matković; Alan Lež; Helwig Hauser et al. (2011). Current Trends for 4D Space-Time Topology for Semantic Flow Segmentation. (external link)
• Cagatay Turkay; Julius Parulek; Nathalie Reuter et al. (2011). Interactive Visual Analysis of Temporal Cluster Structures. (external link)
• Helmut Doleisch; Helwig Hauser (2012). Interactive visual exploration and analysis of multivariate simulation data. (external link)
• Philipp Muigg; Johannes Kehrer; Steffen Oeltze et al. (2008). A four-level focus plus context approach to interactive visual analysis of temporal features in large scientific data. (external link)
• Armin Pobitzer; Ronald Peikert; Raphael Fuchs et al. (2010). On theWay Towards Topology-Based Visualization of Unsteady Flow – the State of the Art. (external link)
• Endre Mølster Lidal; Mattia Natali; Daniel Patel et al. (2013). Geological storytelling. (external link)
• Kim Nylund; Svein Ødegaard; Trygve Hausken et al. (2009). Sonography of the small intestine. (external link)
• Katarína Furmanová; Adam Jurčík; Barbora Kozlíková et al. (2020). Multiscale Visual Drilldown for the Analysis of Large Ensembles of Multi-Body Protein Complexes. (external link)
• Ivan Kolesar; Julius Parulek; Ivan Viola et al. (2014). Interactively illustrating polymerization using three-level model fusion. (external link)
• Paolo Angelelli; Helwig Hauser (2011). Straightening Tubular Flow for Side-by-Side Visualization. (external link)
• Rainer Splechtna; Majid Behravan; Mario Jelovic et al. (2024). Interactive Design-of-Experiments: Optimizing a Cooling System. (external link)
• Bilal Alsallakh; Wolfgang Aigner; Silvia Miksch et al. (2013). Radial sets: interactive visual analysis of large overlapping sets. (external link)
• K Matkovic; D Gracanin; M Jelovic et al. (2008). Interactive Visual Steering - Rapid Visual Prototyping of a Common Rail Injection System. (external link)
• Chaoran Fan; Helwig Hauser (2019). Personalized Sketch-Based Brushing in Scatterplots. (external link)
• Cagatay Turkay; Peter Filzmoser; Helwig Hauser (2011). Brushing Dimensions - A Dual Visual Analysis Model for High-Dimensional Data. (external link)
• Cagatay Turkay; Arvid Lundervold; Astri Lundervold et al. (2012). Representative factor generation for the interactive visual analysis of high-dimensional data. (external link)
• Ove Daae Lampe; Carlos Correa; Kwan-Liu Ma et al. (2009). Curve-centric volume reformation for comparative visualization. (external link)
• Pierre Bedoucha; Nathalie Reuter; Helwig Hauser et al. (2020). Visual exploration of large normal mode spaces to study protein flexibility. (external link)
• Juraj Palenik; Jan Byska; Stefan Bruckner et al. (2019). Scale-Space Splatting: Reforming Spacetime for Cross-Scale Exploration of Integral Measures in Molecular Dynamics. (external link)
• Ruben Bauer; Quynh Quang Ngo; Guido Reina et al. (2023). Visual Ensemble Analysis of Fluid Flow in Porous Media Across Simulation Codes and Experiment. (external link)
• Johannes Kehrer; Florian Ladstädter; Philipp Muigg et al. (2008). Hypothesis Generation in Climate Research with Interactive Visual Data Exploration. (external link)
• Laura Ann Garrison; Juliane Müller; Stefanie Schreiber et al. (2021). DimLift: Interactive Hierarchical Data Exploration through Dimensional Bundling. (external link)
• Juliane Muller; Laura Ann Garrison; Philipp Ulbrich et al. (2021). Integrated Dual Analysis of Quantitative and Qualitative High-Dimensional Data. (external link)
• Johannes Kehrer; Helwig Hauser (2013). Visualization and visual analysis of multifaceted scientific data : a survey. (external link)
• Ove Daae Lampe; Helwig Hauser (2011). Interactive model Prototyping in Visualization Space. (external link)
• Krešimir Matković; Rainer Splechtna; Denis Gračanin et al. (2021). Getting Insight into Noise, Vibration, and Harshness Simulation Data. (external link)
• Chaoran Fan; Helwig Hauser (2018). Fast and accurate CNN-based brushing in scatterplots. (external link)
• Chaoran Fan; Krešimir Matković; Helwig Hauser (2021). Sketch-Based Fast and Accurate Querying of Time Series Using Parameter-Sharing LSTM Networks. (external link)
• Paolo Angelelli; Steffen Oeltze; Judit Haasz et al. (2014). Interactive visual analysis of heterogeneous cohort-study data. (external link)
• Juraj Palenik; Thomas Spengler; Helwig Hauser (2020). IsoTrotter: Visually Guided Empirical Modelling of Atmospheric Convection. (external link)
• Bilal Alsallakh; Allan Hanbury; Helwig Hauser et al. (2014). Visual methods for analyzing probabilistic classification data. (external link)
• Krešimir Matković; Denis Gračanin; Mario Jelović et al. (2010). Interactive visual analysis of multiple simulation runs using the simulation model view: understanding and tuning of an electronic unit injector. (external link)
• Raphael Fuchs; Jan Kemmler; Benjamin Schindler et al. (2010). Toward a Lagrangian Vector Field Topology. (external link)
• Daniel Patel; Øyvind Sture; Helwig Hauser et al. (2009). Knowledge-assisted visualization of seismic data. (external link)
• Ivan Kolesar; Stefan Bruckner; Ivan Viola et al. (2017). A fractional cartesian composition model for semi-spatial comparative visualization design. (external link)
• Harald Piringer; Matthias Buchetics; Helwig Hauser et al. (2010). Hierarchical Difference Scatterplots: Interactive Visual Analysis of Data Cubes. (external link)
• Johannes Kehrer; Philipp Muigg; Helmut Doleisch et al. (2011). Interactive visual analysis of heterogeneous scientific data across an interface. (external link)
• Paolo Angelelli; Ivan Viola; Kim Nylund et al. (2010). Guided Visualization of Ultrasound Image Sequences. (external link)
• Paolo Angelelli; Kim Nylund; Odd Helge Gilja et al. (2011). Interactive visual analysis of contrast-enhanced ultrasound data based on small neighborhood statistics. (external link)
• Ivan Viola; Åsmund Birkeland; Veronika Šoltészová et al. (2013). High-quality 3D visualization of in-situ ultrasonography. (external link)
• Sergej Stoppel; Erlend Hodneland; Helwig Hauser et al. (2016). Graxels: Information Rich Primitives for the Visualization of Time-Dependent Spatial Data. (external link)
• Adam Jurcik; Katarina Furmanova; Jan Byska et al. (2019). Visual Analysis of Ligand Trajectories in Molecular Dynamics. (external link)
• Armin Pobitzer; Ronald Peikert; Raphael Fuchs et al. (2011). The State of the Art in Topology-based Visualization of Unsteady Flow. (external link)
• Kresimir Matkovic; Denis Gracanin; Borislav Klarin et al. (2009). Interactive visual analysis of complex scientific data as families of data surfaces. (external link)
• Ove Daae Lampe; Helwig Hauser (2011). Curve Density Estimates. (external link)
• Ivan Kolesar; Jan Byska; Julius Parulek et al. (2016). Unfolding and Interactive Exploration of Protein Tunnels and their Dynamics. (external link)
• Steffen Oeltze; Helmut Doleisch; Helwig Hauser et al. (2007). Interactive Visual Analysis of Perfusion Data. (external link)
• Paolo Angelelli; Sten Roar Snare; Siri Ann Nyrnes et al. (2014). Live ultrasound-based particle visualization of blood flow in the heart. (external link)
• Krešimir Matković; Denis Gračanin; Zoltán Konyha et al. (2007). Color Lines View: An Approach to Visualization of Families of Function Graphs. (external link)
• Andrea Brambilla; Ivan Viola; Helwig Hauser (2012). A Hierarchical Splitting Scheme to Reveal Insight into Highly Self-Occluded Integral Surfaces. (external link)
• Philipp Muigg; Markus Hadwiger; Helmut Doleisch et al. (2007). Scalable Hybrid Unstructured and Structured Grid Raycasting. (external link)
• Raphael Fuchs; Ronald Peikert; Helwig Hauser et al. (2008). Parallel vectors criteria for unsteady flow vortices. (external link)
• Sanjin Radoš; Rainer Splechtna; Krešimir Matković et al. (2016). Towards quantitative visual analytics with structured brushing and linked statistics. (external link)
• Bernhard Preim; Paul Klemm; Helwig Hauser et al. (2016). Visual analytics of image-centric cohort studies in epidemiology. (external link)
• Kresimir Matkovic; Denis Gracanin; Rainer Splechtna et al. (2014). Visual analytics for complex engineering systems: Hybrid visual steering of simulation ensembles. (external link)
• Laura Ann Garrison; Ivan Kolesar; Ivan Viola et al. (2022). Trends & Opportunities in Visualization for Physiology: A Multiscale Overview. (external link)
• Katarina Furmanova; Miroslava Jaresova; Jan Byska et al. (2017). Interactive Exploration of Ligand Transportation through Protein Tunnels. (external link)
• Lucia Kocincova; Miroslava Jaresova; Jan Byska et al. (2017). Comparative Visualization of Protein Secondary Structures. (external link)
• Andrea Brambilla; Helwig Hauser (2015). Expressive seeding of multiple stream surfaces for interactive flow exploration. (external link)
• Chaoran Fan; Helwig Hauser (2021). On Sketch-Based Selections from Scatterplots Using KDE, Compared to Mahalanobis and CNN Brushing. (external link)
• Andrea Brambilla; Paolo Angelelli; Øyvind Andreassen et al. (2016). Comparative visualization of multiple time surfaces by planar surface reformation. (external link)
• Armin Pobitzer; Murat Tutkun; Øyvind Andreassen et al. (2011). Energy-scale Aware Feature Extraction for Flow Visualization. (external link)

Conference lecture

• Helwig Hauser (2010). Interactive Visualization as a Visual Dialog for Data Investigation. (external link)
• Helwig Hauser (2010). Interactive Story Telling for Presentation with Visualization. (external link)
• Helwig Hauser (2010). Story Telling for Visualization. (external link)
• Helwig Hauser; Sylvia Glaßer (2010). Visualizing Statistics of Brain Perfusion Data. (external link)
• Helwig Hauser (2010). Interactive Visual Analysis with different levels of complexity. (external link)
• Chaoran Fan; Helwig Hauser (2017). User-study based optimization of fast and accurate Mahalanobis brushing in scatterplots. (external link)
• Helwig Hauser (2011). Interactive Visual Analysis of Multi-Dimensional Scientific Data. (external link)
• Viktor Vad; Jan Byska; Adam Jurčík et al. (2017). Watergate: Visual Exploration of Water Trajectories in Protein Dynamics. (external link)
• Natacha Galmiche; Helwig Hauser; Thomas Spengler et al. (2021). Revealing Multimodality in Ensemble Weather Prediction. (external link)
• Helwig Hauser; Krešimir Matković (2007). Interactive Visual Analysis of Families of Mapping Data. (external link)
• Helwig Hauser (2007). Story Telling for Presentation in Volume Visualization. (external link)
• Helwig Hauser (2007). Interactive Visual Analysis of Medical Perfusion Data. (external link)
• Helwig Hauser (2009). Interactive Visual Analysis with Different Levels of Complexity. (external link)
• Torsten Möller; Andrea Brambilla; Ingrid Hotz et al. (2016). Geilo Winter School in eScience on Scientific Visualization. (external link)
• Helwig Hauser (2009). Visualization – envisioning new developments. (external link)
• Helwig Hauser (2009). Interactive Visual Data Exploration and Selected Applications. (external link)
• Helwig Hauser (2009). Levels of Interactive Visual Analysis. (external link)
• Helwig Hauser (2009). Frontiers in Visualizing Perfusion. (external link)
• Helwig Hauser (2009). Visualization – a subjective point of view. (external link)
• Helwig Hauser (2009). Visualization – selected perspectives on a booming research field. (external link)
• Helwig Hauser (2009). Interactive Visual Data Analysis with Data Derivation. (external link)
• Helwig Hauser; Alexander Kuhn; Armin Pobitzer et al. (2012). Time-Dependent Flow Visualization. (external link)

Academic book chapter

• Andrea Brambilla; Øyvind Andreassen; Helwig Hauser (2013). Integrated multi-aspect visualization of 3D fluid flows. (external link)
• Alan Lež; Andreas Zajic; Krešimir Matković et al. (2011). Interactive Exploration and Analysis of Pathlines in Flow Data. (external link)
• Cagatay Turkay; Arvid Lundervold; Astri Lundervold et al. (2013). Hypothesis generation by interactive visual exploration of heterogeneous medical data. (external link)
• Ola Kristoffer Øye; Dag Magne Ulvang; Odd Helge Gilja et al. (2011). Illustrative Couinaud Segmentation for Ultrasound Liver Examinations. (external link)
• Endre Mølster Lidal; Helwig Hauser; Ivan Viola (2012). Design Principles for Cutaway Visualization of Geological Models. (external link)
• Endre Mølster Lidal; Helwig Hauser; Ivan Viola (2012). Geological storytelling: graphically exploring and communicating geological sketches. (external link)
• Ove Daae Lampe; Helwig Hauser (2011). Interactive Visualization of Streaming Data with Kernel Density Estimation. (external link)
• Natacha Galmiche; Helwig Hauser; Thomas Spengler et al. (2021). Revealing Multimodality in Ensemble Weather Prediction. (external link)
• Krešimir Matković; Wolfgang Freiler; Denis Gračanin et al. (2008). ComVis: a Coordinated Multiple Views System for Prototyping New Visualization Technology. (external link)
• Sylvia Glasser; Steffen Oeltze; Uta Preim et al. (2013). Visual analysis of longitudinal brain tumor perfusion. (external link)
• Krešimir Matković; Mario Duras; Denis Gračanin et al. (2013). Interactive visual analysis in the concept stage of a hybrid-vehicle design. (external link)
• Harald Piringer; Wolfgang Berger; Helwig Hauser (2008). Quantifying and Comparing Features in High-Dimensional Datasets. (external link)
• Ove Daae Lampe; Johannes Kehrer; Helwig Hauser (2010). Visual Analysis of Multivariate Movement Data using Interactive Difference Views. (external link)
• Jean-Paul Balabanian; Martin Andreas Ystad; Ivan Viola et al. (2008). Hierarchical Volume Visualization of Brain Anatomy. (external link)
• Rainer Splechtna; Krešimir Matković; Denis Gračanin et al. (2015). Interactive Visual Steering of Hierarchical Simulation Ensembles. (external link)
• Ivan Viola; Kim Nylund; Ola Kristoffer Øye et al. (2008). Illustrated Ultrasound for Multimodal Data Interpretation of Liver Examinations. (external link)
• Kuangyu Shi; Holger Theisel; Helwig Hauser et al. (2009). Path Line Attributes - an Information Visualization Approach to Analyzing the Dynamic Behavior of 3D Time-Dependent Flow Fields. (external link)
• Zoltán Konyha; Krešimir Matković; Helwig Hauser (2009). Interactive Visual Analysis in Engineering: A Survey. (external link)
• Helwig Hauser; Heidrun Schumann (2009). Visualization Pipeline. (external link)
• Timo Ropinski; Ivan Viola; Martin Biermann et al. (2009). Multimodal Visualization with Interactive Closeups. (external link)
• Steffen Oeltze; Bernhard Preim; Helwig Hauser et al. (2009). Visual analysis of cerebral perfusion data - four interactive approaches and a comparison. (external link)
• Chaoran Fan; Helwig Hauser (2019). On KDE-based brushing in scatterplots and how it compares to CNN-based brushing. (external link)
• Armin Pobitzer; Alan Lez; Kresimir Matkovic et al. (2012). A Statistics-based Dimension Reduction of the Space of Path Line Attributes for Interactive Visual Flow Analysis. (external link)
• Martin Florek; Helwig Hauser (2011). Interactive Bivariate Mode Trees for Visual Structure Analysis. (external link)
• Cagatay Turkay; Julius Parulek; Nathalie Reuter et al. (2011). Integrating Cluster Formation and Cluster Evaluation in Interactive Visual Analysis. (external link)
• Andreas E. Lie; Johannes Kehrer; Helwig Hauser (2009). Critical Design and Realization Aspects of Glyph-based 3D Data Visualization. (external link)
• Cagatay Turkay; Fleur Jeanquartier; Andreas Holzinger et al. (2014). On Computationally-Enhanced Visual Analysis of Heterogeneous Data and Its Application in Biomedical Informatics. (external link)
• Krešimir Matković; Denis Gračanin; Mario Jelovic et al. (2015). Interactive Visual Analysis of Large Simulation Ensembles. (external link)
• Krešimir Matković; Denis Gračanin; Rainer Splechtna et al. (2010). Interactive Visual Analysis of Families of Surfaces: An Application to Car Race and Car Setup. (external link)
• Martin Florek; Helwig Hauser (2010). Quantitative data visualization with interactive KDE surfaces. (external link)
• Veronika Šoltészová; Ruben Patel; Helwig Hauser et al. (2012). Stylized Volume Visualization of Streamed Sonar Data. (external link)
• Zoltán Konyha; Krešimir Matković; Denis Gračanin et al. (2007). Interactive Visual Analysis of a Timing Chain Drive Using Segmented Curve View and other Coordinated Views. (external link)
• Armin Pobitzer; Helwig Hauser (2011). The SemSeg Project and Recent Developments in Flow Visualization. (external link)
• Harald Piringer; Matthias Buchetics; Helwig Hauser et al. (2009). Hierarchical Difference Scatterplots — Interactive Visual Analysis of Data Cubes. (external link)
• Krešimir Matković; Denis Gračanin; Wolfgang Freiler et al. (2009). Large Image Collections - Comprehension and familiarization by interactive visual analysis. (external link)
• Cagatay Turkay; Julius Parulek; Helwig Hauser (2012). Dual analysis of DNA microarrays. (external link)
• Helwig Hauser; Hamish Carr (2014). Multifield Visualization – Categorization. (external link)
• Robert S. Laramee; Hamish Carr; Min Chen et al. (2014). Future Challenges and Unsolved Problems in Multi-field Visualization. (external link)
• Gunther Weber; Helwig Hauser (2014). Interactive Visual Exploration and Analysis. (external link)
• David H.S. Chung; Robert S. Laramee; Johannes Kehrer et al. (2014). Glyph-Based Multi-field Visualization. (external link)
• Zoltán Konyha; Alan Lez; Krešimir Matković et al. (2012). Interactive visual analysis of families of curves using data aggregation and derivation. (external link)
• Armin Pobitzer; Ronald Peikert; Raphael Fuchs et al. (2012). Filtering of FTLE for Visualizing Spatial Separation in Unsteady 3D Flow. (external link)

Book anthology

• Helwig Hauser (2009). Proceedings Spring Conference on Computer Graphics (SCCG 2009). (external link)
• Min Chen; Helwig Hauser; Penny Rheingans et al. (2020). Foundations of Data Visualization. (external link)
• Helwig Hauser; Stephen Kobourov; Huamin Qu (2012). Proceedings of Pacific Visualization Symposium 2012. (external link)
• Helwig Hauser; Reinhard Klein (2010). Proceedings of the Spring Conference on Computer Graphics (SCCG 2010). (external link)
• Helwig Hauser; Hans Hagen; Holger Theisel (2007). Topology-based Methods in Visualization. (external link)
• Ragnar Nortvedt; Helwig Hauser; Odd Helge Gilja (2016). Medviz & VCBM Conference 2016. (external link)
• Ronald Peikert; Helwig Hauser; Hamish Carr et al. (2012). Topological Methods in Data Analysis and Visualization II. (external link)

Academic literature review

• Raphael Bürger; Helwig Hauser (2007). Visualization of Multi-variate Scientific Data. (external link)
• Rita Borgo; Johannes Kehrer; David H.S. Chung et al. (2013). Glyph-based visualization: foundations, design guidelines, techniques and applications. (external link)
• Bilal Alsallakh; Luana Micallef; Wolfgang Aigner et al. (2016). The State-of-the-Art of Set Visualization. (external link)
• R Fuchs; Helwig Hauser (2009). Visualization of Multi-Variate Scientific Data. (external link)
• Andrea Brambilla; Robert Carnecky; Ronald Peikert et al. (2012). Illustrative Flow Visualization: State of the Art, Trends and Challenges. (external link)

Doctoral thesis (PhD)

• Johannes Kehrer; Helwig Hauser; Eduard Gröller (2011). Interactive visual analysis of multi-faceted scientific data. (external link)
• Sergej Stoppel; Stefan Bruckner; Helwig Hauser (2018). User-Centric Parameter Specification for Interactive Virtual and Physical Visual Representations. (external link)
• Ove Daae Lampe; Helwig Hauser; Christopher Giertsen (2011). Interactive Visual Analysis of Process Data. (external link)
• Ivan Kolesar; Helwig Hauser (2017). Partial Spatiotemporal Abstraction for Comparative Visualization of Molecular Processes. (external link)

Media interview

• Veronika Šoltészová; Silje Rognsvåg; Helwig Hauser et al. (2012). Gjør ultralydbilder lettere å forstå. (external link)

Conference poster

• Paolo Angelelli; Helwig Hauser; Geir Smestad (2013). Advanced data fusion in 4D color doppler volume visualization. (external link)
• Noeska Natasja Smit; Stefan Bruckner; Helwig Hauser et al. (2018). Research Agenda of the Mohn Medical Imaging and Visualization Centre in Bergen, Norway. (external link)
• Armin Pobitzer; Andrea Brambilla; Helwig Hauser (2012). Flow Visualization and the SemSeg project. (external link)

Editorial/Leader article

• Ivan Viola; Helwig Hauser; David Ebert (2010). Editorial note for special section on illustrative visualization. (external link)
• Helwig Hauser; Stephen Kobourov; Huamin Qu (2013). Guest Editors' Introduction: Special Section on the IEEE Pacific Visualization Symposium 2012. (external link)
• Kwan-Liu Ma; Isaac Liao; Jennifer Frazier et al. (2012). Scientific Storytelling Using Visualization. (external link)

See a complete overview of publications in NVA.

Helwig Hauser graduated from Vienna University of Technology, Austria, in 1995 and received the degree of Dr.techn. (PhD) from the same University in 1998.  He worked as an assistant professor at the Institute of Computer Graphics at the Vienna University of Technology from 1994 until mid-2000.  Then, Helwig Hauser joined the newly founded VRVis Research Center in Vienna, Austria, as a key researcher in the field of visualization.  In 2003, he became the Scientific Director of VRVis (www.VRVis.at (external link)).  Since 2007, Helwig Hauser is professor at the University of Bergen, Norway, and leading a research group on visualization there (vis.UiB.no (external link)).  Since 2018, he is heading the Center for Data Science, CEDAS (UiB.no/cedas).  His interests are diverse in visualization and data science, including visual data science, interactive visual data exploration and analysis, and the application of visualization to a broad range of applications.