The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Graph Nonisomorphism Has Subexponential Size Proofs Unless the Polynomial-Time Hierarchy Collapses
Open accessAbstract
Traditional hardness versus randomness results focus on time-efficient randomized decision procedures. We generalize these trade-offs to a much wider class of randomized processes. We work out various applications, most notably to derandomizing Arthur-Merlin games. We show that every language with a bounded round Arthur-Merlin game has subexponential size membership proofs for infinitely many input lengths unless exponential time coincides with the third level of the polynomial-time hierarchy (and hence the polynomial-time hierarchy collapses). Since the graph nonisomorphism problem has a bounded round Arthur-Merlin game, this provides the first strong evidence that graph nonisomorphism has subexponential size proofs. We also establish hardness versus randomness trade-offs for space bounded computation.
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The complexity of theorem-proving procedures
Cook, S. A. (1971) · Proceedings of the third annual ACM symposium on Theory of computing - STOC '71 · doi:10.1145/800157.805047 · Cited by 6,385
Motwani, R., & Raghavan, P. (1995) · Cambridge University Press eBooks · doi:10.1017/cbo9780511814075 · Cited by 5,123
Goldwasser, S., & Micali, S. (1984) · Journal of Computer and System Sciences · doi:10.1016/0022-0000(84)90070-9 · Cited by 2,603
Angluin, D. (1988) · Machine Learning · doi:10.1007/bf00116828 · Cited by 1,905
Learning Quickly When Irrelevant Attributes Abound: A New Linear-Threshold Algorithm
Littlestone, N. (1988) · Machine Learning · doi:10.1023/a:1022869011914 · Cited by 1,353
Goldreich, O., Micali, S., & Wigderson, A. (1991) · Journal of the ACM · doi:10.1145/116825.116852 · Cited by 1,349
How to Generate Cryptographically Strong Sequences of Pseudorandom Bits
Blum, M., & Micali, S. (1984) · SIAM Journal on Computing · doi:10.1137/0213053 · Cited by 1,322
Theory and application of trapdoor functions
Yao, A. C.-C. (1982) · doi:10.1109/sfcs.1982.95 · Cited by 1,008
Luis Balcázar, J., Díaz, J., & Gabarró, J. (1995) · Texts in Theoretical Computer Science An EATCS Series · doi:10.1007/978-3-642-79235-9 · Cited by 866
Nisan, N., & Wigderson, A. (1994) · Journal of Computer and System Sciences · doi:10.1016/s0022-0000(05)80043-1 · Cited by 808
Cited by
Extractors and pseudorandom generators
(2001) · Journal of the ACM · doi:10.1145/502090.502099 · Cited by 324
Improving Exhaustive Search Implies Superpolynomial Lower Bounds
Williams, R. (2013) · SIAM Journal on Computing · doi:10.1137/10080703x · Cited by 157
Metadata
- Authors
- Klivans, A. R., & van Melkebeek, D.
- Venue
- SIAM Journal on Computing
- Published
- 2002-01
- Volume
- 31
- Issue
- 5
- Pages
- 1501-1526
- ISSN
- 0097-5397 (ISSN-L)
- 1095-7111
- OpenAlex
- W1558847040
- Cited by
- 270
- References
- 33
- FWCI
- 11.43
- Type
- journal article
- Language
- en
- Open access
- bronze
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