27 Open Problems in Kolmogorov Complexity
27 Open Problems in Kolmogorov Complexity
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27 柯尔莫哥洛夫复杂度中的开放问题
DOI:
10.1145/3510382.3510389
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Zimand, Marius
中科院分区:
文献类型:
--
作者:
Romashchenko, Andrei;Shen, Alexander;Zimand, Marius
This formula can be informally read as follows: the ith messagemi brings us log(1=pi) "bits of information" (whatever this means), and appears with frequency pi, so H is the expected amount of information provided by one random message (one sample of the random variable). Moreover, we can construct an optimal uniquely decodable code that requires about H (at most H + 1, to be exact) bits per message on average, and it encodes the ith message by approximately log(1=pi) bits, following the natural idea to use short codewords for frequent messages. This fits well the informal reading of the formula given above, and it is tempting to say that the ith message "contains log(1=pi) bits of information." Shannon himself succumbed to this temptation [46, p. 399] when he wrote about entropy estimates and considers Basic English and James Joyces's book "Finnegan's Wake" as two extreme examples of high and low redundancy in English texts. But, strictly speaking, one can speak only of entropies of random variables, not of their individual values, and "Finnegan's Wake" is not a random variable, just a specific string. Can we define the amount of information in individual objects?
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影响因子:
0.5
作者:
L. Bienvenu;P. Gács;M. Hoyrup;Cristobal Rojas;A. Shen
通讯作者:
A. Shen
DOI:
--
发表时间:
2011
期刊:
arXiv.org
影响因子:
--
作者:
A. Muchnik
通讯作者:
A. Muchnik
影响因子:
0.5
作者:
L. Bienvenu;M. Hoyrup;A. Shen
通讯作者:
A. Shen
DOI:
--
发表时间:
2013
期刊:
Cybersecurity and Cyberforensics Conference
影响因子:
--
作者:
Bruno Bauwens;Marius Zimand
通讯作者:
Marius Zimand
DOI:
--
发表时间:
1999
期刊:
Proceedings. Fourteenth Annual IEEE Conference on Computational Complexity (Formerly: Structure in Complexity Theory Conference) (Cat.No.99CB36317)
影响因子:
--
作者:
A. Muchnik;Andrei E. Romashchenko;A. Shen;N. Vereshchagin
通讯作者:
N. Vereshchagin