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Hiroki Koga
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2020 – today
- 2023
- [j20]Hiroki Koga:
Foreword. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 106(3): 358 (2023) - 2022
- [c32]Hiroki Koga:
Construction of the Visual Cryptography Scheme with the Maximum Relative Difference under a Strong General Access Structure. ISIT 2022: 660-665 - 2021
- [j19]Kyohei Sekine, Hiroki Koga:
Optimal Basis Matrices of a Visual Cryptography Scheme with Meaningful Shares and Analysis of Its Security. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 104-A(9): 1235-1244 (2021) - [c31]Hiroki Koga:
Coding Theorems on Digital Fingerprinting Coding under Informed and Uninformed Setups. ITW 2021: 1-6 - [c30]D. Saito, T. Kobayashi, Hiroki Koga, Nicolo Ronchi, Kaustuv Banerjee, Yusuke Shuto, Jun Okuno, Kenta Konishi, Luca Di Piazza, Arindam Mallik, Jan Van Houdt, Masanori Tsukamoto, K. Ohkuri, Taku Umebayashi, Takayuki Ezaki:
Analog In-memory Computing in FeFET-based 1T1R Array for Edge AI Applications. VLSI Circuits 2021: 1-2 - 2020
- [c29]Sayaka Doi, Hiroki Koga, Tomonori Seki, Yutaro Okuno:
Novel Proximity Sensor for Realizing Tactile Sense in Suction Cups. ICRA 2020: 638-643 - [c28]Yohei Okawa, Hiroki Koga:
An Ideal Secret Sharing Scheme Realizing an Access Structure Based on a Finite Projective Plane of Order 3. ISIT 2020: 852-857 - [c27]Hiroki Koga:
Coding Theorems on the Simple Capacity for Digital Fingerprinting Codes. ISITA 2020: 61-65 - [c26]Kyohei Sekine, Hiroki Koga:
Optimal Basis Matrices of a Visual Cryptography Scheme with Meaningful Shares and Analysis of Its Security. ISITA 2020: 422-426 - [c25]Ryo Okamura, Hiroki Koga:
New Constructions of an Evolving 2-Threshold Scheme Based on Binary or D-ary Prefix Codes. ISITA 2020: 432-436
2010 – 2019
- 2018
- [c24]Hiroki Koga:
A Lower Bound on the Joint Capacity of Digital Fingerprinting Codes Using Score Functions Based on Log-Likelihood Ratio. ISIT 2018: 1136-1140 - [c23]Koutaro Okada, Hiroki Koga:
A Construction of the (4, n)-Threshold Visual Cryptography Scheme Using a 3-Design. ISITA 2018: 223-227 - 2017
- [j18]Jun Muramatsu
, Hiroki Koga:
Foreword. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 100-A(12): 2556-2557 (2017) - [c22]Tsutomu Haruta, Tsutomu Nakajima, Jun Hashizume, Taku Umebayashi, Hiroshi Takahashi, Kazuo Taniguchi, Masami Kuroda, Hiroshi Sumihiro, Koji Enoki
, Takatsugu Yamasaki, Katsuya Ikezawa, Atsushi Kitahara, Masao Zen, Masafumi Oyama, Hiroki Koga, Hidenobu Tsugawa, Tomoharu Ogita, Takashi Nagano, Satoshi Takano, Tetsuo Nomoto:
4.6 A 1/2.3inch 20Mpixel 3-layer stacked CMOS Image Sensor with DRAM. ISSCC 2017: 76-77 - [c21]Koutaro Okada, Hiroki Koga:
A construction of the progressive (3, n)-threshold visual cryptography using a BIBD and analysis of its optimality. ITW 2017: 249-253 - 2016
- [c20]Hiroki Koga, Kaoru Itabashi:
A Higher Order Analysis of the Joint Capacity of Digital Fingerprinting Codes against the Interleaving Attack. IH&MMSec 2016: 23-28 - [c19]Shota Kamiya, Hiroki Koga:
New fundamental properties on a secret-key cryptosystem under guessing secrecy criteria. ISITA 2016: 345-349 - 2015
- [c18]Hiroki Koga:
On a partition of a finite set and its relationships to encoding tasks and the Rényi entropy. ISIT 2015: 1452-1456 - 2014
- [j17]Takemasa Yokoyama
, Yasuki Noguchi, Hiroki Koga, Ryosuke Tachibana, Jun Saiki
, Ryusuke Kakigi, Shinichi Kita:
Multiple neural mechanisms for coloring words in synesthesia. NeuroImage 94: 360-371 (2014) - [c17]Hiroki Koga, Hiroyuki Goto
, Eishi Chiba:
Resolution of resource conflicts in the CCPM framework using a local search method. IEEM 2014: 94-98 - [c16]Hiroki Koga, Shuntaro Honjo:
A secret sharing scheme based on a systematic Reed-Solomon code and analysis of its security for a general class of sources. ISIT 2014: 1351-1355 - [c15]Hiroki Koga:
On the capacity and the zero-error capacity of k-resilient AND anti-collusion codes. ITW 2014: 177-181 - 2013
- [j16]Mitsuharu Arimura, Hiroki Koga, Ken-ichi Iwata:
Redundancy-Optimal FF Codes for a General Source and Its Relationships to the Rate-Optimal FF Codes. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 96-A(12): 2332-2342 (2013) - [j15]Mitsuharu Arimura, Hiroki Koga, Ken-ichi Iwata:
A Characterization of Optimal FF Coding Rate Using a New Optimistically Optimal Code. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 96-A(12): 2443-2446 (2013) - [c14]Hiroki Koga:
Characterization of the smooth Rényi Entropy Using Majorization. ITW 2013: 1-5 - 2012
- [j14]Hiroki Koga:
On the Achievable Rate Region in the Optimistic Sense for Separate Coding of Two Correlated General Sources. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 95-A(12): 2100-2106 (2012) - [j13]Mitsugu Iwamoto, Hiroki Koga, Hirosuke Yamamoto
:
Coding Theorems for a (2, 2)-Threshold Scheme With Detectability of Impersonation Attacks. IEEE Trans. Inf. Theory 58(9): 6194-6206 (2012) - [c13]Hiroki Koga, Kazuya Koyano:
On the role of mutual infomation between the shares in a robust (k, n)-threshold scheme. ISITA 2012: 260-264 - 2011
- [j12]Hiroki Koga, Takeru Ishihara:
A general method for construction of (t, n)-threshold visual secret sharing schemes for color images. Des. Codes Cryptogr. 61(2): 223-249 (2011) - [j11]Hiroki Koga, Yusuke Minami:
A Digital Fingerprinting Code Based on a Projective Plane and Its Identifiability of All Malicious Users. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 94-A(1): 223-232 (2011) - [j10]Hiroki Koga:
Four Limits in Probability and Their Roles in Source Coding. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 94-A(11): 2073-2082 (2011) - [c12]Hiroki Koga, Mitsuharu Arimura, Ken-ichi Iwata:
Coding theorems on the worst-case redundancy of fixed-length coding for a general source. ISIT 2011: 1327-1331 - 2010
- [j9]Hiroyuki Ishii, Hiroki Koga, Yuichi Obokawa, Jorge Solis, Atsuo Takanishi, Akitoshi Katsumata
:
Path generator control system and virtual compliance calculator for maxillofacial massage robots. Int. J. Comput. Assist. Radiol. Surg. 5(1): 77-84 (2010) - [c11]Hiroki Koga:
A simple secret sharing scheme using a key and its security against substitution of shares. ISIT 2010: 2483-2487 - [c10]Hiroki Koga:
Two generalizations of a coding theorem for a (2, 2)-threshold scheme with a cheater. ISITA 2010: 678-683 - [i1]Mitsugu Iwamoto, Hiroki Koga, Hirosuke Yamamoto:
Coding Theorems for Cheating-Detectable Secret Sharing Schemes with Two Shares. CoRR abs/1004.4530 (2010)
2000 – 2009
- 2009
- [j8]Hiroyuki Ishii, Hiroki Koga, Yuichi Obokawa, Jorge Solis, Atsuo Takanishi, Akitoshi Katsumata
:
Development and Experimental Evaluation of Oral Rehabilitation Robot that Provides Maxillofacial Massage to Patients with Oral Disorders. Int. J. Robotics Res. 28(9): 1228-1239 (2009) - [c9]Mitsugu Iwamoto, Hirosuke Yamamoto
, Hiroki Koga:
A coding theorem for cheating-detectable (2, 2)-threshold blockwise secret sharing schemes. ISIT 2009: 1308-1312 - 2008
- [j7]Hiroki Koga:
Coding Theorems on the Threshold Scheme for a General Source. IEEE Trans. Inf. Theory 54(6): 2658-2677 (2008) - 2007
- [j6]Hiroki Koga:
Source Coding Using Families of Universal Hash Functions. IEEE Trans. Inf. Theory 53(9): 3226-3233 (2007) - [c8]Hiroki Koga, Isao Nakano:
Coding Theorems for General Stegosystems. ISIT 2007: 2456-2460 - 2006
- [j5]Hiroki Koga, Etsuyo Ueda:
Basic Properties of the (t, n)-Threshold Visual Secret Sharing Scheme with Perfect Reconstruction of Black Pixels. Des. Codes Cryptogr. 40(1): 81-102 (2006) - [c7]Hiroki Koga, Etsuyo Ueda:
Proposal of an Asymptotically Contrast-Ideal (t, n)- Threshold Visual Secret Sharing Scheme. ISIT 2006: 912-916 - 2005
- [j4]Hiroki Koga, Hirosuke Yamamoto
:
Asymptotic properties on codeword lengths of an optimal FV code for general sources. IEEE Trans. Inf. Theory 51(4): 1546-1555 (2005) - [c6]Hiroki Koga:
Coding theorems on the threshold scheme for a general source. ICITS 2005: 67-72 - [c5]Hiroki Koga, Naoki Sato:
On an upper bound of the secrecy capacity for a general wiretap channel. ISIT 2005: 1641-1645 - 2004
- [c4]Hiroki Koga:
Source coding using a class of universal hash functions. ISIT 2004: 431 - 2003
- [j3]Takeru Ishihara, Hiroki Koga:
A Visual Secret Sharing Scheme for Color Images Based on Meanvalue-Color Mixing. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 86-A(1): 194-197 (2003) - [j2]Jun Muramatsu, Hiroki Koga, Takafumi Mukouchi:
On the Problem of Generating Mutually Independent Random Sequences. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 86-A(5): 1275-1284 (2003) - [c3]Hiroki Koga:
A Constraint-based Grammar of Case : To Correctly Predict Case Phrases Occurring without Their Head Verb. PACLIC 2003: 351-361 - 2002
- [j1]Takeru Ishihara, Hiroki Koga:
New Constructions of the Lattice-Based Visual Secret Sharing Scheme Using Mixture of Colors. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 85-A(1): 158-166 (2002) - [c2]Hiroki Koga:
A General Formula of the (t, n)-Threshold Visual Secret Sharing Scheme. ASIACRYPT 2002: 328-345
1990 – 1999
- 1997
- [c1]Suguru Arimoto, Hiroki Koga, Tomohide Naniwa:
Proposal of the-law-of-inertia (friction/gravity-free) robots. ICRA 1997: 2232-2239
Coauthor Index
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