KOMPRESI FILE MENGGUNAKAN ALGORITMA LEMPEL ZIV WELCH (LZW)
نویسندگان
چکیده
منابع مشابه
Practical Evaluation of Lempel-Ziv-78 and Lempel-Ziv-Welch Tries
We present the first thorough practical study of the Lempel-Ziv-78 and the Lempel-Ziv-Welch computation based on trie data structures. With a careful selection of trie representations we can beat well-tuned popular trie data structures like Judy, m-Bonsai or Cedar.
متن کاملParallel Lempel-Ziv-Welch (PLZW) Technique for Data Compression
Data Compression is one of the most fundamental problems in computer science and information technology. Many sequential algorithms are suggested for the problem. The most well known sequential algorithm is Lempel-ZivWelch (LZW) compression technique. The limitation of sequential algorithm is that ith block can be coded only after the (i-1)th block has completed. This limitation can be overcome...
متن کاملLempel-Ziv Dimension for Lempel-Ziv Compression
This paper describes the Lempel-Ziv dimension (Hausdorff like dimension inspired in the LZ78 parsing), its fundamental properties and relation with Hausdorff dimension. It is shown that in the case of individual infinite sequences, the Lempel-Ziv dimension matches with the asymptotical Lempel-Ziv compression ratio. This fact is used to describe results on Lempel-Ziv compression in terms of dime...
متن کاملLightweight Lempel-Ziv Parsing
We introduce a new approach to LZ77 factorization that uses O(n/d) words of working space and O(dn) time for any d ≥ 1 (for polylogarithmic alphabet sizes). We also describe carefully engineered implementations of alternative approaches to lightweight LZ77 factorization. Extensive experiments show that the new algorithm is superior in most cases, particularly at the lowest memory levels and for...
متن کاملParallel Lempel Ziv Coding
We explore the possibility of using multiple processors to improve the encoding and decoding times of Lempel–Ziv schemes. A new layout of the processors, based on a full binary tree, is suggested and it is shown how LZSS and LZW can be adapted to take advantage of such parallel architectures. The layout is then generalized to higher order trees. Experimental results show an improvement in compr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika
سال: 2020
ISSN: 2654-3990,1693-7554
DOI: 10.33751/komputasi.v17i2.2147