Consider the following two Huffiman decoding trees for a variable-length code involving 5 symbols: A, B, C, D and E Tree #1 Tree #2 I 0 A BC 0 1 B CD E D E A. Using Tree #1, decode the following encoded message: "01000111101". B. Suppose we were encoding messages with the following probabilities for each of the 5 symbols (A)- 0,5. p(B)-p(C)-p(D)-p(E)-0.125. Which of the two encodings above (Tree #1 or Tree #2) would yield the shortest encoded messages averaged over many messages? C. Using the probabilities of part (B), if you learn that the first symbol in a message is "B", how many bits of information have you received? 4 0
Consider the following two Huffiman decoding trees for a variable-length code involving 5 symbols: A, B, C, D and E Tree #1 Tree #2 I 0 A BC 0 1 B CD E D E A. Using Tree #1, decode the following encoded message: "01000111101". B. Suppose we were encoding messages with the following probabilities for each of the 5 symbols (A)- 0,5. p(B)-p(C)-p(D)-p(E)-0.125. Which of the two encodings above (Tree #1 or Tree #2) would yield the shortest encoded messages averaged over many messages? C. Using the probabilities of part (B), if you learn that the first symbol in a message is "B", how many bits of information have you received? 4 0
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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