纳特

奈特（nat，或称nit或nepit）又称纳特，是信息论熵 (資訊理論) 的单位之一。以自然对数为底，而不是以2为底的对数。表达式为

I_{e}=-\ln {p_{i}}

1纳特相当于1.44（lb e）比特或0.434（lg e）哈特雷，以及k J/K。

参考文献

（英文）J.W. Comley and D.L. Dowe, ``Minimum Message Length, MDL and Generalised Bayesian Networks with Asymmetric Languages, Chapter 11 (pp265-294) in P. Grünwald, I. J. Myung and M. A. Pitt (eds.), `Advances in Minimum Description Length: Theory and Applications', MIT Press (ISBN 0-262-07262-9), April 2005.
（英文）Fazlollah M. Reza. An Introduction to Information Theory. New York: Dover 1994. ISBN 0486682102

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.