Knapsack problem, Huffman Code, Single Source Shortest Path ...

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Chapter 4: The Greedy Method We need less than that. Assume the existence of the five letters ‘a’, ‘b’, ‘c’, ‘d’, ‘e’. Three bits give us 8 possible different sequences. letter code a 000 b 001 c 010 d 011 e 100 Average code length = 3 10
Chapter 4: The Greedy Method Possibility 1: Suppose that we know the percentage of occurrence of a character ‘a’ = 35%, ‘b’ = 20%, ‘c’ = 20%, ‘d’ = 15%, ‘e’ = 10%, then we can define a variable length code. letter frequency code a .35 0 b .20 1 c .20 00 d .15 01 e .10 10 11
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