| 释义 |
binit|ˈbɪnɪt|
[Abbrev. of binary dig)it.]
A binary digit (occas. distinguished from bit n.4); also, a probability expressed as the logarithm to the base two of the odds (also called binit weight).
1953S. Goldman Information Theory i. 4 We shall use the contractions decit for decimal digit and binit for binary digit. Ibid. 5 The author does not know who originated the term binit, but he first heard it used by Dr. E. W. Samson. Ibid. 7 The total amount of information necessary to locate the cow is thus 6 binits. 1959Science CXXX. 956/3 It is conventional practice in information theory to use logarithms to the base 2 of the probabilities expressed in the form of the ‘odds’, for or against. The units are known as ‘binits’. 1963N. Abramson Information Theory & Coding i. 7 It is important to make a distinction between the binit (binary digit) and the bit. Ibid. ii. 18 If the 0s and 1s are not equally probable, then the amount of information provided by a given binit will be either less than or greater than 1 bit, depending upon its probability. 1965H. B. Newcombe in Math. in Biol. & Med. (Med. Res. Council) ii. 46 We have found logarithms to the base 2 especially convenient and have called these ‘binit weights’. |