The Lempel–Ziv–Welch (LZW) algorithm is a lossless data compression algorithm. LZW is an adaptive compression algorithm that does not assume prior knowledge of the input data distribution. This ...

Abraham Lempel, a pioneer of lossless data compression, passed away at the age of 86. Lempel co-developed the Lempel-Ziv-Welch (LZW) algorithm, a significant advancement in data compression. LZW's ...

Abstract: In the paper, a new parallel LZW-Like algorithm, bi-directory LZW algorithm (BD-LZW) will be interpreted. The new algorithm can be used in data compression ...

In 1984, Terry Welch proposed the LZW algorithm. The LZW algorithm is based on the LZ77 algorithm, which is proposed by A. Lempel and J. Ziv in 1977. Like LZ77 and LZ78, LZW is a dictionary-based ...

Abstract: This paper introduces an efficient data compression algorithm, which performs better then available LZW algorithm. Here, we propose a modified way to update the dictionary for LZW algorithm.

In this paper, we analyze the complexity and entropy of different methods of data compression algorithms: LZW, Huffman, Fixed-length code (FLC), and Huffman after using Fixed-length code (HFLC). We ...

ABSTRACT: The development of multimedia and digital imaging has led to high quantity of data required to represent modern imagery. This requires large disk space for storage, and long time for ...