Panagiotis D. Ritsos

MEng PhD Essex, FHEA

Lecturer in Visualization

Visualization, Modelling and
Graphics (VMG) research group,

School of Computer Science,
Bangor University,
Dean Street, Bangor,
Gwynedd, UK, LL57 1UT

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Contextual Navigation



We explore the concept of Contextual Navigation through visual interfaces, for which we use circular, centred-phylogram projections of networks. We present the phylogram-based visualization as a proof-of-concept of a context-driven approach, using an imaginary police intervention scenario and a network security scenario.


  • C. C. Gray, P. D. Ritsos, and J. C. Roberts, “Contextual Network Navigation; Situational Awareness for Network Administrators,” in IEEE Symposium on Visualization for Cyber Security (VizSec), Chicago, IL, USA, 2015.
  • C. C. Gray, J. C. Roberts, and P. D. Ritsos, “Where Can I Go From Here? Drawing Contextual Navigation Maps of the London Underground,” in Posters presented at the IEEE Conference on Visualization (IEEE VIS 2015), Chicago, IL, USA, 2015.