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Information Theory

Miguel Amezola edited this page Sep 21, 2016 · 15 revisions

Symbols are signals. Communications as selection.

Information can be measured and compared using a measurement called entropy. The bit is a measure of surprise?

The message space is the set of all possible messages. Polybius square was a 5 by 5 grid that could represent 25 distinct messages. Sushruta Samhita: Given six different spices, how many possible different tastes can you make? Given n yes or no questions, there are 2^n possible answer sequences. Example: Lord George Murray's Shutter Telegraph.

Signal vs Noise

Discrete source.

Capacity is the rate of sending information.

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