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mathematics

GOOG-411

GOOG-411 is a mathematics 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 GOOG-411 rather than just read about it. In short: GOOG-411 (or Google Voice Local Search) was a telephone service launched by Google in 2007, that provided a speech-recognition-based business directory search, and placed a call to the resulting number in the United States or Canada. The service was accessible via a toll-free telephone number.

GOOG-411 — main illustration
GOOG-411 — illustration

Key takeaways

  • GOOG-411 belongs to mathematics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect GOOG-411 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of GOOG-411 from memory before moving on to harder problems.

Reference excerpt

GOOG-411 (or Google Voice Local Search) was a telephone service launched by Google in 2007, that provided a speech-recognition-based business directory search, and placed a call to the resulting number in the United States or Canada. The service was accessible via a toll-free telephone number. It was an alternative to 4-1-1, an often-expensive service provided by local and long-distance phone companies, and was therefore commonly known as Google 411. This service was discontinued on November 12, 2010.

History GOOG-411 had been assisting people with obtaining phone numbers since 2007. On November 12, 2010, GOOG-411 shut down its service. While Google did not provide an official reason for the shut down, many believe that Google had simply gathered enough voice samples for its research purposes. Google also operated a similar service from SMS number 466453 which has also been discontinued.

Operations Users who called the toll-free telephone numbers 800-466-4411 or 877-466-4411 (800-GOOG-411 and 877-GOOG-411) or the local number 425-296-4774 were asked for the city and state of the sought business. Users were also able to search for by business name or category, which generated a list of up to eight search results. Search was also invoked by using the keypad if the user preferred. This worked in a similar manner to predictive text input on a cellular phone. Users were able to select the destination by speaking or pressing the number that corresponded to the desired result. Once the destination was selected, the service placed a call to the business or returned a text message with the phone number. Alternatively, users were able to listen to the street address and phone number by saying "details". U.S. users could narrow search results by ZIP code or street intersection. Although Google's FAQ stated that users were able to prevent their phone number from being saved by blocking their caller ID, this was ineffective when calling the 800 number (due to ANI) and only worked when calling the other two. The service would announced to the caller that the call could be recorded for the purpose of service improvements. Google advised users not to use the service for emergency calls, recommending instead that they call 9-1-1.

Business model Google stated that the company originally implemented GOOG-411 to build a large phoneme database from users' voice queries. This phoneme database, in turn, allowed Google engineers to refine and improve the speech recognition engine that Google uses to index audio content for searching.

See also 1-800-FREE-411 800-The-Info Bing Mobile List of speech recognition software Tellme Networks

References

Illustrations

GOOG-411 illustration

Worked examples

Example 1 — a first encounter with GOOG-411

Start with the simplest possible case. Write down what GOOG-411 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, 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 GOOG-411 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 GOOG-411 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 GOOG-411

In research
GOOG-411 appears in mathematics 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 GOOG-411 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
GOOG-411 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Directory assistance services, Discontinued Google services, Internet properties disestablished in 2010, so understanding it makes those chapters shorter.
In everyday life
Look for GOOG-411 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 GOOG-411 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what GOOG-411 means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain GOOG-411 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GOOG-411 in simple terms?

GOOG-411 (or Google Voice Local Search) was a telephone service launched by Google in 2007, that provided a speech-recognition-based business directory search, and placed a call to the resulting number in the United States or Canada. The service was accessible via a toll-free telephone number.

Why does GOOG-411 matter?

Because it connects several mathematics 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 GOOG-411?

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 GOOG-411.

Tags

  • Directory assistance services
  • Discontinued Google services
  • Internet properties disestablished in 2010
  • Internet properties established in 2007
  • Telephone numbers in Canada
  • Telephone numbers in the United States
  • Telephony

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