{"title":"论常规平衡随机 (k,2s)-SAT 问题的 (1,0)- 超级解的上限","authors":"Yongping Wang, Daoyun Xu, Jincheng Zhou","doi":"10.1007/s11704-023-2752-2","DOIUrl":null,"url":null,"abstract":"<p>This paper explores the conditions which make a regular balanced random (<i>k</i>,2<i>s</i>)-CNF formula (1,0)-unsatisfiable with high probability. The conditions also make a random instance of the regular balanced (<i>k</i> − 1,2(<i>k</i> − 1)<i>s</i>)-SAT problem unsatisfiable with high probability, where the instance obeys a distribution which differs from the distribution obeyed by a regular balanced random (<i>k</i> − 1,2(<i>k</i> − 1)<i>s</i>)-CNF formula. Let <b>F</b> be a regular balanced random (<i>k</i>,2<i>s</i>)-CNF formula where <i>k</i> ⩾ 3, then there exists a number <i>s</i><sub>0</sub> such that <b>F</b> is (1,0)-unsatisfiable with high probability if <i>s</i> > <i>s</i><sub>0</sub>. A numerical solution of the number <i>s</i><sub>0</sub> when <i>k</i> ∈ {5, 6,…, 14} is given to conduct simulated experiments. The simulated experiments verify the theoretical result. Besides, the experiments also suggest that <b>F</b> is (1,0)-satisfiable with high probability if <i>s</i> is less than a certain value.</p>","PeriodicalId":12640,"journal":{"name":"Frontiers of Computer Science","volume":"83 1","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"On the upper bounds of (1,0)-super solutions for the regular balanced random (k,2s)-SAT problem\",\"authors\":\"Yongping Wang, Daoyun Xu, Jincheng Zhou\",\"doi\":\"10.1007/s11704-023-2752-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This paper explores the conditions which make a regular balanced random (<i>k</i>,2<i>s</i>)-CNF formula (1,0)-unsatisfiable with high probability. The conditions also make a random instance of the regular balanced (<i>k</i> − 1,2(<i>k</i> − 1)<i>s</i>)-SAT problem unsatisfiable with high probability, where the instance obeys a distribution which differs from the distribution obeyed by a regular balanced random (<i>k</i> − 1,2(<i>k</i> − 1)<i>s</i>)-CNF formula. Let <b>F</b> be a regular balanced random (<i>k</i>,2<i>s</i>)-CNF formula where <i>k</i> ⩾ 3, then there exists a number <i>s</i><sub>0</sub> such that <b>F</b> is (1,0)-unsatisfiable with high probability if <i>s</i> > <i>s</i><sub>0</sub>. A numerical solution of the number <i>s</i><sub>0</sub> when <i>k</i> ∈ {5, 6,…, 14} is given to conduct simulated experiments. The simulated experiments verify the theoretical result. Besides, the experiments also suggest that <b>F</b> is (1,0)-satisfiable with high probability if <i>s</i> is less than a certain value.</p>\",\"PeriodicalId\":12640,\"journal\":{\"name\":\"Frontiers of Computer Science\",\"volume\":\"83 1\",\"pages\":\"\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2023-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Frontiers of Computer Science\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://doi.org/10.1007/s11704-023-2752-2\",\"RegionNum\":3,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"COMPUTER SCIENCE, INFORMATION SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Computer Science","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1007/s11704-023-2752-2","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"COMPUTER SCIENCE, INFORMATION SYSTEMS","Score":null,"Total":0}
引用次数: 0
摘要
本文探讨了使正则平衡随机 (k,2s)-CNF 公式 (1,0)- 以高概率不可满足的条件。这些条件还使得正则平衡(k - 1,2(k - 1)s)-SAT 问题的随机实例以高概率不可满足,其中该实例服从的分布与正则平衡随机(k - 1,2(k - 1)s)-CNF 公式服从的分布不同。设 F 是一个正则平衡随机 (k,2s)-CNF 公式,其中 k ⩾ 3,则存在一个数字 s0,如果 s > s0,则 F 以高概率是 (1,0)- 不可满足的。给出了当 k∈{5, 6,..., 14} 时数字 s0 的数值解,并进行了模拟实验。模拟实验验证了理论结果。此外,实验还表明,如果 s 小于某一特定值,则 F 很有可能可满足 (1,0)。
On the upper bounds of (1,0)-super solutions for the regular balanced random (k,2s)-SAT problem
This paper explores the conditions which make a regular balanced random (k,2s)-CNF formula (1,0)-unsatisfiable with high probability. The conditions also make a random instance of the regular balanced (k − 1,2(k − 1)s)-SAT problem unsatisfiable with high probability, where the instance obeys a distribution which differs from the distribution obeyed by a regular balanced random (k − 1,2(k − 1)s)-CNF formula. Let F be a regular balanced random (k,2s)-CNF formula where k ⩾ 3, then there exists a number s0 such that F is (1,0)-unsatisfiable with high probability if s > s0. A numerical solution of the number s0 when k ∈ {5, 6,…, 14} is given to conduct simulated experiments. The simulated experiments verify the theoretical result. Besides, the experiments also suggest that F is (1,0)-satisfiable with high probability if s is less than a certain value.
期刊介绍:
Frontiers of Computer Science aims to provide a forum for the publication of peer-reviewed papers to promote rapid communication and exchange between computer scientists. The journal publishes research papers and review articles in a wide range of topics, including: architecture, software, artificial intelligence, theoretical computer science, networks and communication, information systems, multimedia and graphics, information security, interdisciplinary, etc. The journal especially encourages papers from new emerging and multidisciplinary areas, as well as papers reflecting the international trends of research and development and on special topics reporting progress made by Chinese computer scientists.