An introduction to Kolmogorov complexity and its applications (2nd ed.)
An introduction to Kolmogorov complexity and its applications (2nd ed.)
Independent minimum length programs to translate between given strings
Theoretical Computer Science
Information distance and conditional complexities
Theoretical Computer Science
IEEE Transactions on Information Theory
Nonapproximability of the normalized information distance
Journal of Computer and System Sciences
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Consider a binary string x0 of Kolmogorov complexity K(x0) ≥ n. The question is whether there exist two strings x1 and x2 such that the approximate equalities K(xi ∣ xj) ≈ n and K(xi ∣ xj, xk) ≈ n hold for all 0 ≤ i, j, k ≤ 2, i ≠ j ≠ k, i ≠ k. We prove that the answer is positive if we require the equalities to hold up to an additive term O(log K(x0)). It becomes negative in the case of better accuracy, namely, O(log n).