computer science

Hiroshi Ishii (computer scientist)

Hiroshi Ishii (computer scientist) is a computer science 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 Hiroshi Ishii (computer scientist) rather than just read about it. In short: Hiroshi Ishii (石井裕, Ishii Hiroshi; born 1956) is a Japanese computer scientist and a professor at the Massachusetts Institute of Technology. He is also Associate Director of the MIT Media Laboratory.

Key takeaways

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

Reference excerpt

Hiroshi Ishii (石井裕, Ishii Hiroshi; born 1956) is a Japanese computer scientist and a professor at the Massachusetts Institute of Technology. He is also Associate Director of the MIT Media Laboratory.

Early life and education Ishii was born in Tokyo and raised in Sapporo, Japan. He received a Bachelor of Engineering degree in electronic engineering (1978), and Master of Engineering (1980) and PhD (1992) in computer engineering, all from Hokkaido University in Sapporo.

Career

Ishii worked at Japan's NTT Human Interface Laboratories in Yokosuka, where he made his mark in Human-Computer Interaction (HCI) and Computer-Supported Cooperative Work (CSCW) in the early 1990s. During his time at NTT, he co-authored two papers. In 1990 he and Kazuho Arita created the "TeamWorkStation." This device allowed users to record their desk and broadcast it to another user in a video conference, similar to a service like Zoom or Discord. His second project at NTT was the "ClearBoard", which was published in 1992. This piece of technology allowed to users to write on a see-through white-board like device that allowed them to maintain eye contact while collaborating. In 1995, he joined the MIT Media Laboratory as a professor of Media Arts and Sciences, and founded the Tangible Media Group and started their ongoing Tangible Bits project. In 1997, Ishii pioneered Tangible User Interfaces (TUI) in the field of human-computer interaction with the paper Tangible Bits: Towards Seamless Interfaces between People, Bits and Atoms, co-authored with his then PhD student Brygg Ullmer. In 2005, Ishii, Ullmer, and Robert J. K. Jacob published a token+constraint framework for tangible interfaces. In 2012, he extended his vision of HCI to "Radical Atoms", a hypothetical future generation of materials which can change form and properties dynamically and computationally, becoming as reconfigurable in the physical 3D world as pixels on a 2D graphical user interface (GUI) screen. Ishii's inFORM display, released in 2013, is a tactile tabletop device for prototyping interfaces, with an appearance compared to a pin board. The TRANSFORM, a larger-scale shape-changing table, received the A'Design Platinum Award in 2015. Ishii was elected to the CHI Academy in 2006. In 2019, he received the SIGCHI Lifetime Research Award. He was named to the 2022 class of ACM Fellows, "for contributions to tangible user interfaces and to human-computer interaction". As of 2025, he teaches the class MAS.834 Tangible Interfaces at the Media Lab.

External links

Illustrations

Worked examples

Example 1 — a first encounter with Hiroshi Ishii (computer scientist)

Start with the simplest possible case. Write down what Hiroshi Ishii (computer scientist) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, 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 Hiroshi Ishii (computer scientist) 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 Hiroshi Ishii (computer scientist) 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 Hiroshi Ishii (computer scientist)

In research: Hiroshi Ishii (computer scientist) appears in computer science 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 Hiroshi Ishii (computer scientist) 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: Hiroshi Ishii (computer scientist) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1956 births, Computer scientist stubs, Hokkaido University alumni, so understanding it makes those chapters shorter.
In everyday life: Look for Hiroshi Ishii (computer scientist) 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Hiroshi Ishii (computer scientist)” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Hiroshi Ishii (computer scientist) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Hiroshi Ishii (computer scientist) 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 Hiroshi Ishii (computer scientist) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hiroshi Ishii (computer scientist) in simple terms?

Why does Hiroshi Ishii (computer scientist) matter?

Because it connects several computer science 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 Hiroshi Ishii (computer scientist)?

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 Hiroshi Ishii (computer scientist).