Title
Calculating Kolmogorov Complexity From The Output Frequency Distributions Of Small Turing Machines
Abstract
Drawing on various notions from theoretical computer science, we present a novel numerical approach, motivated by the notion of algorithmic probability, to the problem of approximating the Kolmogorov-Chaitin complexity of short strings. The method is an alternative to the traditional lossless compression algorithms, which it may complement, the two being serviceable for different string lengths. We provide a thorough analysis for all Sigma(11)(n-1) 2(n) binary strings of length n<12 and for most strings of length 12 <= n <= 16 by running all similar to 2.5 x 10(13) Turing machines with 5 states and 2 symbols (8 x 22(9) with reduction techniques) using the most standard formalism of Turing machines, used in for example the Busy Beaver problem. We address the question of stability and error estimation, the sensitivity of the continued application of the method for wider coverage and better accuracy, and provide statistical evidence suggesting robustness. As with compression algorithms, this work promises to deliver a range of applications, and to provide insight into the question of complexity calculation of finite (and short) strings. Additional material can be found at the Algorithmic Nature Group website at http://www.algorithmicnature.org. An Online Algorithmic Complexity Calculator implementing this technique and making the data available to the research community is accessible at http://www.complexitycalculator.com.
Year
DOI
Venue
2012
10.1371/journal.pone.0096223
PLOS ONE
Keywords
Field
DocType
bioinformatics,chemistry,biology,biomedical research,physics,engineering,medicine
Algorithmic probability,Discrete mathematics,Kolmogorov complexity,Busy beaver,NSPACE,Super-recursive algorithm,Turing machine,Time hierarchy theorem,Mathematics,Computational complexity theory
Journal
Volume
Issue
ISSN
9
5
1932-6203
Citations 
PageRank 
References 
32
2.07
14
Authors
4
Name
Order
Citations
PageRank
Fernando Soler-Toscano119526.32
Hector Zenil231047.82
Jean-Paul Delahaye332554.60
Nicolas Gauvrit41018.55