A new paper has been published by Nohno et al.
Koto Nohno, Hsiang-Yun Wu, Kazuho Watanabe, Shigeo Takahashi, Issei Fujishiro: “Axis Contraction of Parallel Coordinates Using Spectral Graph Analysis”, The Journal of the Institute of Image Electronics Engineers of Japan, Vol. 44, No. 3, pp. 447-456, July 2015．
You can find the publication’s details on the page here (in Japanese).
You can find the journal website here (in Japanese).