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Kolmogorov complexity
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== Time-bounded complexity == Time-bounded Kolmogorov complexity is a modified version of Kolmogorov complexity where the space of programs to be searched for a solution is confined to only programs that can run within some pre-defined number of steps.<ref>{{Cite journal |last1=Hirahara |first1=Shuichi |last2=Kabanets |first2=Valentine |last3=Lu |first3=Zhenjian |last4=Oliveira |first4=Igor C. |date=2024 |title=Exact Search-To-Decision Reductions for Time-Bounded Kolmogorov Complexity |journal=39th Computational Complexity Conference (CCC 2024) |series=Leibniz International Proceedings in Informatics (LIPIcs) |volume=300 |language=en |publisher=Schloss Dagstuhl β Leibniz-Zentrum fΓΌr Informatik |pages=29:1β29:56 |doi=10.4230/LIPIcs.CCC.2024.29|doi-access=free |isbn=978-3-95977-331-7 }}</ref> It is hypothesised that the possibility of the existence of an efficient algorithm for determining approximate time-bounded Kolmogorov complexity is related to the question of whether true [[one-way function]]s exist.<ref>{{Cite web |last=Klarreich |first=Erica |date=2022-04-06 |title=Researchers Identify 'Master Problem' Underlying All Cryptography |url=https://www.quantamagazine.org/researchers-identify-master-problem-underlying-all-cryptography-20220406/ |access-date=2024-11-16 |website=Quanta Magazine |language=en}}</ref><ref>{{Citation |last1=Liu |first1=Yanyi |title=On One-way Functions and Kolmogorov Complexity |date=2020-09-24 |arxiv=2009.11514 |last2=Pass |first2=Rafael}}</ref>
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