Statistical Compression - The Basic Models
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چکیده
The basic problem we consider is the following: suppose we know the probability of the next symbol in an alphabet, and the next symbol, give a compression algorithm for the string. The general idea is simple: allocate short codes to more probable symbols. This will in general, force longer codes to be allocated to less probable symbols. We hope that the expected length of the code produced will be short. (This is not possible for every string, as we have seen in Chapter 1. What we hope is that the strings we are interested in, will be assigned short codes.)
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