Jan Polowinski

| Knowledge Engineer
| Information Visualizer
| Freelance Software Developer
| Scientist

I received my PhD from the Technische Universität Dresden in the Software Technology Group for my work in the field of knowledge visualization.
Besides knowledge graphs, semantic technologies, graphics and visualization, my interests include open data and open science. My work at the Saxon State and University Library Dresden (SLUB) embraced fields such as data integration, and graph databases, as well as research data management and building up the Service Center Research Data of TU Dresden. While I'm also interested in new technologies as such, I first of all see them as a promising tool to help solve today's problems, such as information overload, lost trust in facts, and the resulting environmental and social challenges.

My interest in scientific facts and knowledge includes the domain of physiotherapy and I'm looking for partners from this field. Please contact me!

Currently, I'm working as a freelance software developer. See if my standing experience in knowledge engineering, web technologies or visualisation matches your needs. I'm interested to hear about your projects, offering reduced fees for not-for-profit companies, social and ecological untertakings and start-ups.

Skills and Interests

Knowledge and Visualisation

In the context of my PhD thesis I started work on the following three projects:

VISO – the Visualisation Ontology

http://purl.org/viso

RVL – an RDF(S)/OWL Visualisation Language

http://purl.org/rvl

A Demonstrator for RVL and VISO

... with an online editor and example collection.

http://purl.org/rvl/demo

You can find more about my work in the field of knowledge and visualisation in the SemVis Blog.
The blog was initially created as as place for presenting thoughts and ideas around my PhD project. It is now continued as a general means of discussing and publishing things around visualisation of semantically rich or linked open data.

Demos

RVL Demo

You can experiment with the RVL and VISO in this online editor. It also provides you with a list of example visualisations and test cases.

http://purl.org/rvl/demo

Web

http://purl.org/viso – the VISO visualisation ontology
http://purl.org/rvl – an RDF(S)/OWL visualisation language
http://purl.org/rvl/demo – A demonstrator for RVL and VISO with an online editor and example collection

PhD Thesis

Ontology-Driven, Guided Visualisation Supporting Explicit and Composable Mappings.
(Ontologie-getriebene, geführte Visualisierung mit expliziten und komponierbaren Abbildungen).
PhD thesis.
Language: English.
November 2017.
http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-229908

Papers

Widgets for Faceted Browsing.
Jan Polowinski. In Human Interface and the Management of Information. Designing Information Environments, LNCS 5617 proceedings, (Springer-Verlag Berlin Heidelberg, 2009), 601-610.
PDF (The final publication is available at: link.springer.com.)

A survey of Faceted Browsing approaches focussing on filtering widgets. This work was done as part of an analysis how the filtering part of the visualisation process can be done.

Weighted Faceted Browsing for Characteristics-based Visualization Selection through End Users.
Voigt, Martin, Artur Werstler, Jan Polowinski, and Klaus Meißner.
In Proceedings of the 4th ACM SIGCHI symposium on Engineering interactive computing systems, 151–156. EICS ’12. New York, NY, USA: ACM, 2012.
PDF
© ACM, 2012. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in EICS '12 Proceedings of the 4th ACM SIGCHI symposium on Engineering interactive computing systems, pages 151-156, ACM New York, NY, USA, 2012, http://doi.acm.org/10.1145/2305484.2305509

VISO: A Shared, Formal Knowledge Base as a Foundation for Semi-automatic InfoVis Systems.
Polowinski, Jan, und Martin Voigt. In CHI ’13 Extended Abstracts on Human Factors in Computing Systems. CHI WIP ’13. Paris, France: ACM, 2013.
PDF | POSTER
© ACM, 2013. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in CHI ’13 Extended Abstracts on Human Factors in Computing Systems, 1791–1796. CHI EA ’13. New York, NY, USA: ACM, 2013. doi:10.1145/2468356.2468677.

Towards RVL: a Declarative Language for Visualizing RDFS/OWL Data.
Polowinski, Jan. In Proceedings of the 3rd International Conference on Web Intelligence, Mining and Semantics, 38:1–38:11. WIMS ’13. New York, NY, USA: ACM, 2013.
PDF | SLIDES | REPORT
© ACM, 2013. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Proceedings of the 3rd International Conference on Web Intelligence, Mining and Semantics, 38:1–38:11. WIMS ’13. New York, NY, USA: ACM, 2013. doi:10.1145/2479787.2479825.

Contact

Dr.-Ing. Jan Polowinski
E-Mail: jan at polowinski dot de