中央研究院  |   資訊科學研究所  |   多媒體網路與系統實驗室 
Radar Chart: Scanning for High QoE in QoS Dimensions
(NOTE: Sheng-Wei Chen is also known as Kuan-Ta Chen.)

Abstract
The ongoing convergence of QoE (Quality of Experience) and QoS (Quality of Service) studies to give a thorough understanding of the end-user has posed numerous exciting possibilities for network and multimedia researchers. However, there is not yet a proper visualization tool that is able to map the many-to-one relationship between QoS metrics and QoE, leaving researchers speechless in the cacophony of traditional two-dimensional diagrams. Though mostly employed in qualitative analysis, we found that the radar chart, with a few tweaks, surprisingly suitable for the purpose. In this article, we present our adaptation of the radar chart, and demonstrate in a Voice-over-IP context its use in single- and cross-application performance analysis, application recommendation, and network diagnosis.

Citation
Yu-Chun Chang, Chi-Jui Chang, Kuan-Ta Chen, and Chin-Laung Lei, "Radar Chart: Scanning for High QoE in QoS Dimensions," In Proceedings of IEEE CQR 2010, June 2010.

BibTex
@INPROCEEDINGS{chang10:radarchart,
  AUTHOR     = {Yu-Chun Chang and Chi-Jui Chang and Kuan-Ta Chen and Chin-Laung Lei},
  TITLE      = {{Radar Chart}: Scanning for High {QoE} in {QoS} Dimensions},
  BOOKTITLE  = {Proceedings of IEEE CQR 2010},
  MONTH      = {June},
  YEAR       = {2010}
}
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