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ORCIDKazuhiro Yokoyama
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2020 – today
- 2024
[c39]Hiroshi Kera, Yuki Ishihara, Tristan Vaccon, Kazuhiro Yokoyama:
Gröbner basis computation via learning. SCSS (Work in Progress) 2024: 51-56- [i11]Momonari Kudo, Kazuhiro Yokoyama:
On Hilbert-Poincaré series of affine semi-regular polynomial sequences and related Gröbner bases. CoRR abs/2401.07768 (2024) - [i10]Momonari Kudo, Kazuhiro Yokoyama:
The solving degrees for computing Gröbner bases of affine semi-regular polynomial sequences. CoRR abs/2404.03530 (2024) - [i9]Yuki Ishihara, Kazuhiro Yokoyama:
Comprehensive Systems for Primary Decompositions of Parametric Ideals. CoRR abs/2408.15917 (2024) - [i8]Momonari Kudo, Kazuhiro Yokoyama:
Generalized cryptographic semi-regular sequences: A variant of Fröberg conjecture and a simple complexity estimation for Gröbner basis computation. CoRR abs/2410.23211 (2024) - [i7]Momonari Kudo, Kazuhiro Yokoyama:
On Hilbert-Poincaré series of affine semi-regular polynomial sequences and related Gröbner bases. IACR Cryptol. ePrint Arch. 2024: 86 (2024) - [i6]Momonari Kudo, Kazuhiro Yokoyama:
The solving degrees for computing Gröbner bases of affine semi-regular polynomial sequences. IACR Cryptol. ePrint Arch. 2024: 528 (2024) - 2023
- [i5]Hiroshi Kera, Yuki Ishihara, Yuta Kambe, Tristan Vaccon, Kazuhiro Yokoyama:
Learning to Compute Gröbner Bases. CoRR abs/2311.12904 (2023) - 2021
- [j24]Yasushi Takahashi, Momonari Kudo, Ryoya Fukasaku, Yasuhiko Ikematsu, Masaya Yasuda, Kazuhiro Yokoyama:
Algebraic approaches for solving isogeny problems of prime power degrees. J. Math. Cryptol. 15(1): 31-44 (2021) - [j23]Tristan Vaccon
, Thibaut Verron, Kazuhiro Yokoyama:
On affine tropical F5 algorithms. J. Symb. Comput. 102: 132-152 (2021) - [c38]Yuta Kambe, Yusuke Aikawa, Momonari Kudo, Masaya Yasuda, Katsuyuki Takashima, Kazuhiro Yokoyama:
Implementation Report of the Kohel-Lauter-Petit-Tignol Algorithm for the Constructive Deuring Correspondence. ICMC 2021: 953-966 - 2020
- [j22]Kazuhiro Yokoyama, Masaya Yasuda, Yasushi Takahashi, Jun Kogure:
Complexity bounds on Semaev's naive index calculus method for ECDLP. J. Math. Cryptol. 14(1): 460-485 (2020) - [c37]Yasuhiko Ikematsu, Ryoya Fukasaku, Momonari Kudo, Masaya Yasuda, Katsuyuki Takashima, Kazuhiro Yokoyama:
Hybrid Meet-in-the-Middle Attacks for the Isogeny Path-Finding Problem. APKC@AsiaCCS 2020: 36-44 - [c36]Yuki Ishihara, Tristan Vaccon, Kazuhiro Yokoyama:
On FGLM algorithms with tropical Gröbner bases. ISSAC 2020: 257-264 - [i4]Yuki Ishihara, Kazuhiro Yokoyama:
Effective Localization Using Double Ideal Quotient and Its Implementation. CoRR abs/2003.00220 (2020) - [i3]Yuki Ishihara, Tristan Vaccon, Kazuhiro Yokoyama:
On FGLM Algorithms with Tropical Gröbner bases. CoRR abs/2009.02067 (2020)
2010 – 2019
- 2018
- [j21]Masayuki Noro, Kazuhiro Yokoyama:
Usage of Modular Techniques for Efficient Computation of Ideal Operations. Math. Comput. Sci. 12(1): 1-32 (2018) - [c35]Yuki Ishihara, Kazuhiro Yokoyama:
Effective Localization Using Double Ideal Quotient and Its Implementation. CASC 2018: 272-287 - [c34]Tristan Vaccon, Thibaut Verron, Kazuhiro Yokoyama:
On Affine Tropical F5 Algorithms. ISSAC 2018: 383-390 - [i2]Tristan Vaccon, Thibaut Verron, Kazuhiro Yokoyama:
On Affine Tropical F5 Algorithms. CoRR abs/1805.06183 (2018) - 2017
- [j20]Masaya Yasuda, Kazuhiro Yokoyama, Takeshi Shimoyama, Jun Kogure, Takeshi Koshiba:
Analysis of decreasing squared-sum of Gram-Schmidt lengths for short lattice vectors. J. Math. Cryptol. 11(1): 1-24 (2017) - [j19]Kazuhiro Yokoyama:
Special issue on the conference ISSAC 2015: Symbolic computation and computer algebra. J. Symb. Comput. 83: 1-3 (2017) - [c33]Tristan Vaccon, Kazuhiro Yokoyama:
A Tropical F5 Algorithm. ISSAC 2017: 429-436 - [i1]Tristan Vaccon, Kazuhiro Yokoyama:
A Tropical F5 algorithm. CoRR abs/1705.05571 (2017) - 2015
- [j18]Masaya Yasuda, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama, Takeshi Koshiba:
New packing method in somewhat homomorphic encryption and its applications. Secur. Commun. Networks 8(13): 2194-2213 (2015) - [c32]Masaya Yasuda, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama, Takeshi Koshiba:
Secure Statistical Analysis Using RLWE-Based Homomorphic Encryption. ACISP 2015: 471-487 - [c31]Masaya Yasuda, Takeshi Koshiba, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama:
Secure Data Devolution: Practical Re-encryption with Auxiliary Data in LWE-based Somewhat Homomorphic Encryption. SCC@ASIACCS 2015: 53-61 - [e1]Kazuhiro Yokoyama, Steve Linton, Daniel Robertz:
Proceedings of the 2015 ACM on International Symposium on Symbolic and Algebraic Computation, ISSAC 2015, Bath, United Kingdom, July 06 - 09, 2015. ACM 2015, ISBN 978-1-4503-3435-8 [contents] - 2014
- [j17]Masaya Yasuda, Kazuhiro Yokoyama, Takeshi Shimoyama, Jun Kogure, Takeshi Koshiba:
On the exact decryption range for Gentry-Halevi's implementation of fully homomorphic encryption. J. Math. Cryptol. 8(3): 305-329 (2014) - [c30]Masaya Yasuda, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama, Takeshi Koshiba:
Privacy-Preserving Wildcards Pattern Matching Using Symmetric Somewhat Homomorphic Encryption. ACISP 2014: 338-353 - [c29]Masayuki Noro, Kazuhiro Yokoyama:
Verification of Gröbner Basis Candidates. ICMS 2014: 419-424 - 2013
- [j16]Hidenao Iwane, Hitoshi Yanami, Hirokazu Anai, Kazuhiro Yokoyama:
An effective implementation of symbolic-numeric cylindrical algebraic decomposition for quantifier elimination. Theor. Comput. Sci. 479: 43-69 (2013) - [c28]Masaya Yasuda, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama, Takeshi Koshiba:
Packed Homomorphic Encryption Based on Ideal Lattices and Its Application to Biometrics. CD-ARES Workshops 2013: 55-74 - [c27]Masaya Yasuda, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama, Takeshi Koshiba:
Secure pattern matching using somewhat homomorphic encryption. CCSW 2013: 65-76 - [c26]Masaya Yasuda, Takeshi Shimoyama, Jun Kogure, Kazuhiro Yokoyama, Takeshi Koshiba:
Practical Packing Method in Somewhat Homomorphic Encryption. DPM/SETOP 2013: 34-50 - 2012
- [j15]Sébastien Orange, Guénaël Renault, Kazuhiro Yokoyama:
Efficient Arithmetic in Successive Algebraic Extension Fields Using Symmetries. Math. Comput. Sci. 6(3): 217-233 (2012) - [c25]Kazuhiro Yokoyama:
Usage of Modular Techniques for Efficient Computation of Ideal Operations - (Invited Talk). CASC 2012: 361-362 - 2011
- [j14]Silvia Gandy, Masaaki Kanno, Hirokazu Anai, Kazuhiro Yokoyama:
Optimizing a Particular Real Root of a Polynomial by a Special Cylindrical Algebraic Decomposition. Math. Comput. Sci. 5(2): 209-221 (2011) - [c24]Takeshi Osoekawa, Yuji Mochizuki, Kazuhiro Yokoyama:
Development of QC2AS - A Computer Algebra System for Symbolic Quantum Chemical Computations. ICCSA Workshops 2011: 102-109 - 2010
- [c23]Takeshi Osoekawa, Naoyuki Shinohara, Yuji Mochizuki, Kazuhiro Yokoyama:
Gröbner Basis Technique for Algebraic Formulas in Electron Correlation Theories. ICCSA Workshops 2010: 17-23
2000 – 2009
- 2009
- [j13]Hirokazu Anai, Shinji Hara, Masaaki Kanno, Kazuhiro Yokoyama:
Parametric polynomial spectral factorization using the sum of roots and its application to a control design problem. J. Symb. Comput. 44(7): 703-725 (2009) - [c22]Masaaki Kanno, Kazuhiro Yokoyama, Hirokazu Anai, Shinji Hara:
Solution of algebraic riccati equations using the sum of roots. ISSAC 2009: 215-222 - [c21]Sébastien Orange, Guénaël Renault, Kazuhiro Yokoyama:
Computation schemes for splitting fields of polynomials. ISSAC 2009: 279-286 - [c20]Hidenao Iwane, Hitoshi Yanami, Hirokazu Anai, Kazuhiro Yokoyama:
An effective implementation of a symbolic-numeric cylindrical algebraic decomposition for quantifier elimination. SNC 2009: 55-64 - 2008
- [j12]Masaaki Kanno, Kazuhiro Yokoyama, Hirokazu Anai:
Solution of the algebraic riccati equation using the sum of roots. ACM Commun. Comput. Algebra 42(3): 144-145 (2008) - [c19]Masaaki Kanno, Kazuhiro Yokoyama, Hirokazu Anai, Shinji Hara:
Symbolic optimization of algebraic functions. ISSAC 2008: 147-154 - [c18]Guénaël Renault, Kazuhiro Yokoyama:
Multi-modular algorithm for computing the splitting field of a polynomial. ISSAC 2008: 247-254 - 2007
- [j11]Kazuhiro Yokoyama:
On systems of algebraic equations with parametric exponents II. Appl. Algebra Eng. Commun. Comput. 18(6): 603-630 (2007) - [c17]Masaaki Kanno, Shinji Hara, Hirokazu Anai, Kazuhiro Yokoyama:
Sum of roots, polynomial spectral factorization, and control performance limitations. CDC 2007: 2968-2973 - [c16]Masaaki Kanno, Kazuhiro Yokoyama, Hirokazu Anai, Shinji Hara:
Parametric optimization in control using the sum of roots for parametric polynomial spectral factorization. ISSAC 2007: 211-218 - 2006
- [c15]Guénaël Renault, Kazuhiro Yokoyama:
A Modular Method for Computing the Splitting Field of a Polynomial. ANTS 2006: 124-140 - [c14]Kazuhiro Yokoyama:
Stability of Parametric Decomposition. ICMS 2006: 391-402 - [c13]Masaaki Kanno, Hirokazu Anai, Kazuhiro Yokoyama:
On the Relationship Between the Sum of Roots with Positive Real Parts and Polynomial Spectral Factorization. Numerical Methods and Applications 2006: 320-328 - 2005
- [c12]Hirokazu Anai, Kazuhiro Yokoyama:
Cylindrical Algebraic Decomposition via Numerical Computation with Validated Symbolic Reconstruction. Algorithmic Algebra and Logic 2005: 25-30 - [c11]Hirokazu Anai, Shinji Hara, Kazuhiro Yokoyama:
Sum of roots with positive real parts. ISSAC 2005: 21-28 - 2004
- [j10]Masayuki Noro, Kazuhiro Yokoyama:
Implementation of prime decomposition of polynomial ideals over small finite fields. J. Symb. Comput. 38(4): 1227-1246 (2004) - [c10]Kazuhiro Yokoyama:
On systems of algebraic equations with parametric exponents. ISSAC 2004: 312-319 - 2003
- [j9]Masayuki Noro, Kazuhiro Yokoyama:
Implementation of prime decomposition of polynomial ideals over small finite fields. SIGSAM Bull. 37(3): 81-82 (2003) - 2002
- [c9]Masayuki Noro, Kazuhiro Yokoyama:
Yet another practical implementation of polynomial factorization over finite fields. ISSAC 2002: 200-206 - 2001
- [c8]Takeshi Shimoyama, Hitoshi Yanami, Kazuhiro Yokoyama, Masahiko Takenaka, Kouichi Itoh, Jun Yajima, Naoya Torii, Hidema Tanaka:
The Block Cipher SC2000. FSE 2001: 312-327 - 2000
- [j8]B. Heinrich Matzat, John McKay, Kazuhiro Yokoyama:
Special Issue on Algorithmic Methods in Galois Theory - Foreword of the Guest Editors. J. Symb. Comput. 30(6): 631-633 (2000) - [c7]Tetsuya Izu, Jun Kogure, Kazuhiro Yokoyama:
Efficient Implementation of Schoof's Algorithm in Case of Characteristic 2. Public Key Cryptography 2000: 210-222
1990 – 1999
- 1999
- [j7]Masayuki Noro, Kazuhiro Yokoyama:
A Modular Method to Compute the Rational Univariate Representation of Zero-dimensional Ideals. J. Symb. Comput. 28(1-2): 243-263 (1999) - 1998
- [c6]Tetsuya Izu, Jun Kogure, Masayuki Noro, Kazuhiro Yokoyama:
Efficient Implementation of Schoof's Algorithm. ASIACRYPT 1998: 66-79 - [c5]Tetsuya Izu, Jun Kogure, Masayuki Noro, Kazuhiro Yokoyama:
Parameters for Secure Elliptic Curve Cryptosystem - Improvements on Schoof's Algorithm. Public Key Cryptography 1998: 253-257 - 1996
- [j6]Takeshi Shimoyama, Kazuhiro Yokoyama:
Localization and Primary Decomposition of Polynomial Ideals. J. Symb. Comput. 22(3): 247-277 (1996) - 1995
- [c4]Kazuhiro Yokoyama, Ziming Li, István Nemes:
Finding Roots of Unity Among Quotients of the Roots of an Integral Polynomial. ISSAC 1995: 85-89 - 1994
- [j5]Kazuhiro Yokoyama, Masayuki Noro, Taku Takeshima:
Multi-Modular Approach to Polynomial-Time Factorization of Bivariate Integral Polynomials. J. Symb. Comput. 17(6): 545-563 (1994) - 1993
- [c3]Kazuhiro Yokoyama, Taku Takeshima:
On Hensel Construction of Eigenvalues and Eigenvectors of Matrices with Polynomial Entries. ISSAC 1993: 218-224 - 1992
- [j4]Kazuhiro Yokoyama:
On distance transitive graphs whose automorphism groups are affine. J. Comb. Theory B 55(2): 190-235 (1992) - [j3]Kazuhiro Yokoyama, Masayuki Noro, Taku Takeshima:
Solutions of Systems of Algebraic Equations and Linear Maps on Residue Class Rings. J. Symb. Comput. 14(4): 399-417 (1992) - 1990
- [c2]Kazuhiro Yokoyama, Masayuki Noro, Taku Takeshima:
On Determining the Solvability of Polynomials. ISSAC 1990: 127-134 - [c1]Kazuhiro Yokoyama, Masayuki Noro, Taku Takeshima:
On Factoring Multi-Variate Polynomials over Algebraically Closed Fields (abstract). ISSAC 1990: 297
1980 – 1989
- 1989
- [j2]Kazuhiro Yokoyama, Masayuki Noro, Taku Takeshima:
Computing Primitive Elements of Extension Fields. J. Symb. Comput. 8(6): 553-580 (1989) - 1988
- [j1]Kazuhiro Yokoyama:
On Distance Transitive Graphs in Which the Stabilizer of a Point Contains an Alternating Group. Eur. J. Comb. 9(4): 379-390 (1988)
Coauthor Index
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