V2EX lzma

LZMA

定义 Definition

LZMA(LempelZivMarkov chain Algorithm)是一种无损数据压缩算法,以较高压缩率著称,常用于 7z/.xz 等压缩格式与相关工具中。(也常指其实现或压缩“方法/格式”。)

发音 Pronunciation

/l zi m e/

例句 Examples

LZMA gives a smaller file size than ZIP in many cases.
在很多情况下,LZMA 比 ZIP 能得到更小的文件体积。

Because the dataset is huge, we compress the backups with LZMA to reduce storage and transfer costs, even if decompression is a bit slower.
由于数据集非常大,我们用 LZMA 压缩备份以降低存储和传输成本,即使解压速度可能稍慢一些。

词源 Etymology

LZMA 是缩写,来自三部分:LempelZiv(两位提出经典压缩思想的研究者姓氏,代表一类基于“重复模式/字典”的压缩思路)+ Markov chain(马尔可夫链,指其概率建模/编码策略相关思想)+ Algorithm(算法)。该名称强调它结合了 LZ 系列的匹配机制与概率模型来提升压缩率。

相关词 Related Words

文学与作品 Literary Works

  • 7-Zip User Manual / 7-Zip 文档(介绍 7z 格式与 LZMA/LZMA2 的使用与特点)
  • XZ Utils / xz(1) man page(Unix/Linux 常见工具文档,讨论 .xz 及其与 LZMA 的关系)
  • LZMA SDK(参考实现与接口说明文档,常被引用于工程与技术写作中)
  • The .xz File Format specification(.xz 文件格式规范文档,涉及 LZMA 相关编码与封装细节)
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