香农信息论

进而实现了一种在码率上超越香农信息论限制的图像压缩技术。

Eventually , an image compression technique which can exceed the limitation of Shannon information theory is realized .

本文在香农信息论的基础上，介绍了传统的信源压缩编码方法和信道纠错编码方法。

Based on the Shannon information theory , traditional source compression coding and channel error correction coding methods are introduced .

这种基于图形结构的优化方法借助了香农信息论手段，能够减少数据访问的时间，实现对大型数据库的快速查询，降低数据库的设计成本。

The optimization methods using graph-based structures utilize Shannon information theoretic approach . It can reduce the time of data access so that huge database can be searched quickly , and decrease the cost of database design .

自香农创建信息论以来，现代密码学特别指对信息以及其传输的数学性研究，常被认为是数学和计算机科学的分支，和信息论也密切相关。

Since Shannon proposed the information theory , modern cryptography refer in particular to transmission of information and its mathematical research , which is often considered as a branch of mathematics , computer science and information theory .