21.5 - Optimal Prefix Codes
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
Define a prefix code in your own words?
💡 Hint: Think about how Morse code could lead to confusion.
What encoding method assigns shorter codes to more frequent letters?
💡 Hint: Check what Huffman coding does!
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a prefix code?
💡 Hint: Think about how Morse code functions.
True or False: Huffman coding is an optimal method for generating prefix codes.
💡 Hint: Remember what we discussed about minimizing the average code length.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Given the frequencies of letters {A: 0.5, B: 0.25, C: 0.15, D: 0.10}, design an optimal prefix coding tree and determine the expected length of encoding.
💡 Hint: Use Huffman coding principles to design your tree.
Design a variable-length encoding system for vowels in English based on their frequencies. Show your complete coding tree.
💡 Hint: Remember to prioritize based on how often they are used.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.