Design of new format for mass data compression

• Published in: Journal of China universities of posts and telecommunications Vol. 18; no. 1; pp. 121 - 128
• Main Authors: QIN, Jian-cheng, BAI, Zhong-ying
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2011; School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
• Subjects: arithmetic coding; China; Compressed; Compressing; Computer programs; Data compression; Format; lossless compression; LZ77/LZSS algorithm; mass data coding; Shortages; Software; WinRAR; WinZip; 培训机构; 数据压缩格式; 数据窗口; 无损压缩; 海量数据; mass data coding; lossless compression; arithmetic coding; LZ77/LZSS algorithm
• ISSN: 1005-8885
• DOI: 10.1016/S1005-8885(10)60037-4

In the field of lossless compression, most kinds of traditional software have some shortages when they face the mass data. Their compressing abilities are limited by the data window size and the compressing format design. This paper presents a new design of compressing format named ＇CZ format＇ which supports the data window size up to 4 GB and has some advantages in the mass data compression. Using this format, a compressing shareware named ＇ComZip＇ is designed. The experiment results support that ComZip has better compression ratio than WinZip, Bzip2 and are compressed. And ComZip has the potential to beat 7-zip in WinRAR in most cases, especially when GBs or TBs of mass data future as the data window size exceeds 128 MB.