computer science

HNews

HNews 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 HNews rather than just read about it. In short: hNews is a microformat for news content developed by the Associated Press and the Media Standards Trust. hNews extends hAtom, introducing a number of fields that more completely describe a journalistic work. hNews also introduces rel-principles (a format that describes the journalistic principles upheld by the journalist or news organization that has published the news item). hNews will be one of several microformat…

Key takeaways

HNews 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 HNews to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HNews from memory before moving on to harder problems.

Reference excerpt

hNews is a microformat for news content developed by the Associated Press and the Media Standards Trust. hNews extends hAtom, introducing a number of fields that more completely describe a journalistic work. hNews also introduces rel-principles (a format that describes the journalistic principles upheld by the journalist or news organization that has published the news item). hNews will be one of several microformats open standards. In July 2009, the Associated Press announced its plans to use the format for all of its text content. In 2010, the John S. and James L. Knight Foundation awarded the Media Standards Trust a $350,000 Knight News Challenge grant to create hNews.

External links The draft specification for hNews

References

This article incorporates text from this source, which is in the public domain: http://microformats.org/wiki/hNews

Worked examples

Example 1 — a first encounter with HNews

Start with the simplest possible case. Write down what HNews 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 HNews 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 HNews 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 HNews

In research: HNews 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 HNews 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: HNews is common in secondary-school and first-year university syllabi. It links to neighbouring topics Associated Press, Computer programming stubs, Microformats, so understanding it makes those chapters shorter.
In everyday life: Look for HNews 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 HNews in 20 minutes

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

Frequently asked questions

What is HNews in simple terms?

Why does HNews 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 HNews?

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 HNews.