was a Japanese computer scientist and

graph drawing Graph drawing is an area of mathematics and computer science combining methods from geometric graph theory and information visualization to derive two-dimensional depictions of graphs arising from applications such as social network analysis, car ...

researcher.

Biography

Sugiyama was born on September 17, 1945, in Gifu Prefecture, Japan. He did both his undergraduate and graduate studies at Nagoya University, earning a doctorate in 1974. He then worked for Fujitsu until 1997, when he became a professor at the Japan Advanced Institute of Science and Technology. At JAIST, he became a center director in 1998, dean in 2000, and vice president in 2008. He died on June 10, 2011.Curriculum vitae
from JAIST, retrieved 2011-09-25.. In the 1990s, Sugiyama also served as one of the directors of the Information Processing Society of Japan.

Research

Sugiyama is best known for his work with Tagawa and Toda introducing

layered graph drawing Layered graph drawing or hierarchical graph drawing is a type of graph drawing in which the vertices of a directed graph are drawn in horizontal rows or layers with the edges generally directed downwards.... It is also known as Sugiyama-style gra ...

, now also known as Sugiyama-style graph drawing. Sugiyama also wrote highly cited papers on other topics in graph drawing including maintenance of the "mental map" when a drawing is modified, drawings that simultaneously display both the adjacencies between vertices in a graph and a hierarchical structure on the same vertices, and the control of edge orientations in force-based algorithms.

Books

Sugiyama was the author of several books on graph drawing and knowledge engineering.List of books
from Sugiyama's JAIST web site, retrieved 2011-09-25. His book ''Graph drawing and applications for software and knowledge engineers'' (World Scientific, Series on Software Engineering and Knowledge Engineering, Vol. 11, 2002, ) is a translation into English of a 1992 Japanese book that was the first book in any language on the subject of graph drawing. His book ''Knowledge Science'' (with Atsushi Shimojima and Akiya Nagata) was also translated into Korean (BADA Publishing, 2005).

References

{{DEFAULTSORT:Sugiyama, Kozo 1945 births 2011 deaths People from Gifu Prefecture Japanese computer scientists Graph drawing people Nagoya University alumni