How does Google check spelling errors?

Possible duplicate:
How do you implement "did you mean"?
Like Google, "did you mean?" Does the algorithm work?

Google corrects spelling very quickly and accurately, but how, I could not understand their idea. I tried to do the research, as well as following another link , but did not understand.

Can someone give me a general idea of ​​how Google does this without a dictionary using errors and language models?

Or, if you can give me another useful link.

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Source: https://habr.com/ru/post/1433250/


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