Implement the lzw algorithm

Assignment Help Computer Engineering
Reference no: EM13323047

In this assignment, you will learn about the famous Lempel-Ziv-Welch (LZW) compression algorithm. Most compression algorithms including UNIX compress are based on the LZW algorithm. The LZW algorithm compresses a given text by figuring out patterns which appear very often in the text. The basic idea is to replace (perhaps very long) patterns which appear many times by a much shorter code. Read about this algorithm here .

Your assignment is to implement the LZW algorithm. You can assume that the input text contains english characters (capital and small), space, and full stop. You need to write two programs - one for compressing an input text, and the other to uncompress the compressed text to the original text. To implement the dictionary of code and key, you will use a hash table. Use your own hash function, but you must use quadratic probing to resolve collisions.

 

Reference no: EM13323047

Questions Cloud

Impact of american culture on their country : Which European country has expressed the greatest concern about the impact of American culture on their country?
Generate and display on the console the elements : Generate and display on the console the elements of a one-dimensional array b[M] where each element of b[M] represents the average grade over the semester of each of the M students .
Highest ranking pirate makes a proposal : You are the highest ranking pirate of a group of five pirates which has just captured a treasure of 100 gold pieces. To divide up the treasure, the group uses the following scheme: The highest ranking pirate makes a proposal on how the treasure shoul..
How far above the diver does it appear to be : A skin diver is 2.1m below the surface of a lake. A bird flies overhead 7.2m above the surface of the lake. how far above the diver does it appear to be
Implement the lzw algorithm : The LZW algorithm compresses a given text by figuring out patterns which appear very often in the text. The basic idea is to replace (perhaps very long) patterns which appear many times by a much shorter code. Read about this algorithm here .
Cybersecurity dr - bcp presentation : Discuss the benefits of incorporating technology-based solutions when planning for recovery and restoral of IT operations.
What is the magnitude of the electron after its collision : An incident x-ray photon is scatterted from a free electron that is initailly at rest. What is the magnitude of the electron after its collision
What is the purpose of earthly rewards according to dante : While a naive reader of Augustine would assume that all things of this world are occasions of sin, the biography of St. Louis seems to offer an alternative view. With some precision and detail, describe what significance the French King assigns to ea..
How far did it travel horizontally and vertically : A bullet is fired from at a shooting range. The bullet hits the ground after 0.32 seconds. How far did it travel horizontally and vertically in this time

Reviews

Write a Review

Computer Engineering Questions & Answers

  Mathematics in computing

Binary search tree, and postorder and preorder traversal Determine the shortest path in Graph

  Ict governance

ICT is defined as the term of Information and communication technologies, it is diverse set of technical tools and resources used by the government agencies to communicate and produce, circulate, store, and manage all information.

  Implementation of memory management

Assignment covers the following eight topics and explore the implementation of memory management, processes and threads.

  Realize business and organizational data storage

Realize business and organizational data storage and fast access times are much more important than they have ever been. Compare and contrast magnetic tapes, magnetic disks, optical discs

  What is the protocol overhead

What are the advantages of using a compiled language over an interpreted one? Under what circumstances would you select to use an interpreted language?

  Implementation of memory management

Paper describes about memory management. How memory is used in executing programs and its critical support for applications.

  Define open and closed loop control systems

Define open and closed loop cotrol systems.Explain difference between time varying and time invariant control system wth suitable example.

  Prepare a proposal to deploy windows server

Prepare a proposal to deploy Windows Server onto an existing network based on the provided scenario.

  Security policy document project

Analyze security requirements and develop a security policy

  Write a procedure that produces independent stack objects

Write a procedure (make-stack) that produces independent stack objects, using a message-passing style, e.g.

  Define a suitable functional unit

Define a suitable functional unit for a comparative study between two different types of paint.

  Calculate yield to maturity and bond prices

Calculate yield to maturity (YTM) and bond prices

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd