MVN-Reduce: Dimensionality Reduction for the Visual Analysis of Multivariate Networks
2017 (English)Conference paper (Refereed)
The analysis of Multivariate Networks (MVNs) can be approached from two different perspectives: a multidimensional one, consisting of the nodes and their multiple attributes, or a relational one, consisting of the network’s topology of edges. In order to be comprehensive, a visual representation of an MVN must be able to accomodate both. In this paper, we propose a novel approach for the visualization of MVNs that works by combining these two perspectives into a single unified model, which is used as input to a dimensionality reduction method. The resulting 2D embedding takes into consideration both attribute- and edge-based similarities, with a user-controlled trade-off. We demonstrate our approach by exploring two real-world data sets: a co-authorship network and an open-source software development project. The results point out that our method is able to bring forward features of MVNs that could not be easily perceived from the investigation of the individual perspectives only.
Place, publisher, year, edition, pages
Eurographics - European Association for Computer Graphics, 2017.
Multivariate Networks, Dimensionality Reduction, Visualization, Information Visualization, Visual Analytics, Network Visualization, Graph Drawing
Research subject Computer Science, Information and software visualization
IdentifiersURN: urn:nbn:se:lnu:diva-62133OAI: oai:DiVA.org:lnu-62133DiVA: diva2:1087400
19th EG/VGTC Conference on Visualization (EuroVis '17), 12-16 June 2017, Barcelona, Spain
TO BE PUBLISHED!2017-04-062017-04-062017-04-26