astronomy

Kozo Sugiyama

Kozo Sugiyama is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Kozo Sugiyama rather than just read about it. In short: Kozo Sugiyama (杉山公造, Sugiyama Kōzō; September 17, 1945 – June 10, 2011) was a Japanese computer scientist and graph drawing researcher. Biography Sugiyama was born on September 17, 1945, in Gifu Prefecture, Japan.

Key takeaways

Kozo Sugiyama belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Kozo Sugiyama to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Kozo Sugiyama from memory before moving on to harder problems.

Reference excerpt

Kozo Sugiyama (杉山公造, Sugiyama Kōzō; September 17, 1945 – June 10, 2011) was a Japanese computer scientist and graph drawing 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. 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, 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. His book Graph drawing and applications for software and knowledge engineers (World Scientific, Series on Software Engineering and Knowledge Engineering, Vol. 11, 2002, ISBN 978-981-02-4879-6) 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

Worked examples

Example 1 — a first encounter with Kozo Sugiyama

Start with the simplest possible case. Write down what Kozo Sugiyama claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Kozo Sugiyama before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Kozo Sugiyama ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Kozo Sugiyama

In research: Kozo Sugiyama appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Kozo Sugiyama in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Kozo Sugiyama is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1945 births, 2011 deaths, Graph drawing people, so understanding it makes those chapters shorter.
In everyday life: Look for Kozo Sugiyama outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Kozo Sugiyama in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Kozo Sugiyama means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Kozo Sugiyama out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kozo Sugiyama in simple terms?

Kozo Sugiyama (杉山公造, Sugiyama Kōzō; September 17, 1945 – June 10, 2011) was a Japanese computer scientist and graph drawing researcher. Biography Sugiyama was born on September 17, 1945, in Gifu Prefecture, Japan.

Why does Kozo Sugiyama matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Kozo Sugiyama?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Kozo Sugiyama.