astronomy

James D. Hollan

James D. Hollan 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 James D. Hollan rather than just read about it. In short: James D. Hollan is professor of cognitive science and adjunct professor of computer science at the University of California, San Diego.

Key takeaways

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

Reference excerpt

James D. Hollan is professor of cognitive science and adjunct professor of computer science at the University of California, San Diego. In collaboration with Professor Edwin Hutchins, he directs the Distributed Cognition and Human–Computer Interaction Laboratory at UCSD, and co-directs the Design Lab. Hollan has also spent time working at Xerox PARC and at Bellcore. He was elected to the CHI Academy in 2003 and received the ACM SIGCHI Lifetime Research Award in 2015. His research explores the cognitive consequences of computationally based media. The goal is to understand the cognitive and computational characteristics of dynamic interactive representations as the basis for effective system design. His current work focuses on cognitive ethnography, computer-mediated communication, distributed cognition, human–computer interaction, information visualization, multiscale software, and tools for analysis of video data. His current research is funded by the National Science Foundation (NSF), Intel, Nissan, and the University of California's Digital Media Innovation program. Recently completed research has been funded by Darpa, Intel, NSF, and Sony. After completing a PhD in cognitive psychology at the University of Florida and a postdoctoral fellowship in artificial intelligence at Stanford University, Hollan was on the research faculty at the University of California, San Diego for a decade. Along with Edwin Hutchins and Donald Norman, he led the Intelligent Systems Group in the Institute for Cognitive Science at UCSD and the Future Technologies Group at NPRDC. Hollan left UCSD to become Director of the MCC Human Interface Laboratory and subsequently established the Computer Graphics and Interactive Media Research Group at Bellcore. In 1993, he moved to the University of New Mexico as Chair of the Computer Science Department. In 1997, Hollan returned to UCSD as Professor of Cognitive Science.

References

External links Official website

Worked examples

Example 1 — a first encounter with James D. Hollan

Start with the simplest possible case. Write down what James D. Hollan 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 James D. Hollan 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 James D. Hollan 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 James D. Hollan

In research: James D. Hollan 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 James D. Hollan 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: James D. Hollan is common in secondary-school and first-year university syllabi. It links to neighbouring topics American cognitive scientists, Computer scientist stubs, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for James D. Hollan 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 James D. Hollan in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what James D. Hollan 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 James D. Hollan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is James D. Hollan in simple terms?

James D. Hollan is professor of cognitive science and adjunct professor of computer science at the University of California, San Diego.

Why does James D. Hollan 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 James D. Hollan?

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 James D. Hollan.