I’m a researcher in the field of Visual Analytics and Geographic Information Science. My research interests include visual analytics, uncertainty, movement analysis and volunteered geographic information (VGI).

I received my PhD in Computer Science from the University of Konstanz, where the focus of my research was centered around defining the role of uncertainty in the Visual Analytics knowledge generation process.

Below you can find my work ranging from uncertainty analysis and visualisation, to uncertainty-aware movement extraction for various types of geographic data.

News

Follow me on Twitter (@viharaa) for my recent postings.

Currently, I'm looking for MSc or BSc students to do their thesis with me in the above described area of interests. Please contact me via Linkedin (hansi-senaratne) if you are interested.

Publications


PhD Dissertation

Senaratne, H.: Uncertainty-aware Visual Analytics for Spatio-temporal Data Exploration, 2017 (Published version available here)

Peer-reviewed Journal Publications

  1. Senaratne, H., Mueller, M., Behrisch, M., Lalanne, F., Bustos, J., Schneidewind, J., Keim, D., Schreck, T.: Urban Mobility Analysis with Mobile Network Data: A visual Analytics Approach. Accepted for publication in IEEE Transactions in Intelligent Transportation Systems (IEEE T-ITS), 2017. (Preprint available here)

  2. Senaratne, H., Mobasheri, A., Ali, A. L., Capineri, C., Haklay, M.: A Review of Volunteered Geographic Information Quality Assessment Methods. International Journal of Geographical Information Science, 2016. (Preprint available here, and also appears in this blog)

  3. Sacha, D., Senaratne, H., Kwon, B. C., Ellis, G., Keim, D. A.: The Role of Uncertainty, Awareness, and Trust in Visual Analytics. IEEE Transactions on Visualization and Computer Graphics. Proceedings of the Visual Analytics Science and Technology, 22(01):240-249, 2016. (Paper available here)

  4. Senaratne, H., Bröring, A., Schreck, T. (2013): Using reverse viewshed analysis to assess the location correctness of visually generated VGI. Transactions in GIS, Wiley-Blackwell, 17(3):369-386, 2013. (Preprint available here)


Peer-reviewed Conference & Workshop Publications

  1. Senaratne, H., Gerharz, L., Pebesma, E., Schwering, A. (2012): Usability of spatio-temporal uncertainty visualisation methods. In Bridging the geographic information sciences, pp. 3-23. Springer Berlin Heidelberg, 2012. (Paper available here)

  2. Buchmüller, J., Stein, M., Jäger, A., Schmidt, S., Senaratne, H., Janetzko, H.: Fusing Events, Tasks and Spatial Awareness in an Ambient-Enabled Work Environment. IEEE Conference on Visual Analytics Science and Technology (VAST Challenge 2016 MC1), 2016.

  3. Jäckle, D., Senaratne, H., Buchmüller, J., Keim, D. A.: Integrated Spatial Uncertainty Visualization using Off-screen Aggregation. EuroVis Workshop on Visual Analytics (EuroVA), The Eurographics Association 2015.

  4. Senaratne, H., Bröring, A., Schreck, T., Lehle, D.: Moving on Twitter: Using Episodic Hotspot and Drift Analysis to Detect and Characterise Spatial Trajectories. In Proceedings of the 7th ACM SIGSPATIAL International Workshop on Location-Based Social Networks. (best student paper award) ACM, 2014. (Paper available here)

  5. Senaratne, H., Mittelstädt, S., Jacob, C., Schreck, T.: Uncertainty Visualization for Crisis Management in Smart Grid Environments. Eighth International Conference on Geographic Information Science (GIScience 2014) – Workshop on Visually Supported Reasoning with Uncertainty, 2014. (Paper available here)

  6. Senaratne, H., Reusser , D., Schreck, T. (2013): Usability of uncertainty visualisation methods: A comparison between different user groups. GeoViz Hamburg 2013: Workshop on Interactive Maps that Help People Think. (Paper available here)



Poster Publications & Technical Reports

  1. Sacha, D., Senaratne, H., Kwon, B. C., Keim, D. A.: Uncertainty Propagation and Trust Building in Visual Analytics. IEEE VIS 2014 – Provenance for Sensemaking Workshop (poster paper), 2014.

  2. Senaratne, H., Bröring, A., Schreck, T. (2013): Assessing the credibility of VGI contributors based on metadata and reverse viewshed analysis – An experiment with geotagged Flickr images. Proceedings of the 16th AGILE International Conference on Geographic Information Science. (Paper available here)

  3. Reusser, D.E., Senaratne, H., Gerharz, L. et al. (2012): User preferences for the presentation of uncertainties on web platforms for climate change information. EGU2012-4148. In Geophysical Research Abstracts. (Abstract available here)

  4. Senaratne, H., Gerharz, L.: An Assessment and Categorisation of Quantitative Uncertainty Visualisation Methods for Geospatial Data. In: Geertman, S., Reinhardt, W., Toppen, F., (eds.). Proceedings of the 14th AGILE International Conference on Geographic Information Science – Advancing Geoinformation Science for a Changing World, Utrecht, 18th-21st April 2011. AGILE. (best poster award). (Paper available here)

  5. Gerharz, L., Senaratne, H., Autermann, C., Truong, P., Heuvelink, G., Williams, M., Pebesma, E., Stasch, C., Cornford, D. (2012): Tools for communicating and visualising uncertainties. Deliverable, 3.3. The Uncertainty Enabled Model Web.


Invited Talks

  • “Usability of Spatio-temporal Uncertainty Visualisation Methods”. g2lab, Hafen City University, 21.10.2011.

  • “Quality of Volunteered Geographic Information”. Post Graduate Institute for Science, University of Peradeniya, Sri Lanka, 11.2012.

  • “Visual Analysis of Quality in VGI”. Visual Analytics Group, Middlesex University, London, UK, 27.05.2014.

  • “Analysis of VGI Quality: A Fitness-for-Use Perspective”. Annual E-COST meeting, Sofia, Bulgaria, 28.11.2015.

  • “User-generated Spatial Data- Concepts and Applications”. Post Graduate Institute for Science,University of Peradeniya, Sri Lanka, 21.02.2016.

Academic Visits

  • University College London, ExCites lab, 2-31st May 2014

  • Vespucci Summer school, Fiesole, Italy, “VGI and Citizen Science”, July 2014

  • Graduate school Summer School, Gaschurn, Austria, Computer & Information Science Department, University of Konstanz, October 2013

  • Graduate school Summer School, Gaschurn, Austria, Computer & Information Science Department, University of Konstanz, September 2012

Teaching

This is a list of courses that I co-lectured and tutored while working at the University of Konstanz.

  • Summer 2015 Co-Lecturer for Geographic Information Systems

  • Summer 2015 Tutor for the study project visual analysis of line-based flight movement data and cultural heritage data with the DE-9IM

  • Winter 2014/2015 Tutor for the course Digital Libraries

  • Summer 2014 Co-Lecturer for Geographic Information Systems

  • Summer 2014 Tutor for the study project visual analysis of point-based Flickr photo data and land use data with the DE-9IM

  • Winter 2013/2014 Tutor for the course Document Analysis

  • Summer 2013 Co-Lecturer for Geographic Information Systems

  • Summer 2013 Tutor for the study project visual analysis of point-based Flickr photo data and land use data with the DE-9IM

  • Winter 2012/2013 Tutor for the course Digital Libraries