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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 10 of 10  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCC, ISEC, IT, WBS 2024-03-14
09:55
Osaka Osaka Univ. (Suita Campus) New Algorithms for Computing a Correct Decoding Probability Exponent and an Error Decoding Probability Exponent with Cost Constraints and their Equivalency
Koki Kazama (Waseda Univ.), Akira Kamatsuka (Shonan Institute of Technology), Takahiro Yoshida (Nihon Univ.) IT2023-110 ISEC2023-109 WBS2023-98 RCC2023-92
In channel coding, there are two representative previous algorithms for computing cost-constrained correct decoding prob... [more] IT2023-110 ISEC2023-109 WBS2023-98 RCC2023-92
pp.232-237
IT 2023-08-04
09:55
Kanagawa Shonan Institute of Technology
(Primary: On-site, Secondary: Online)
New Algorithms for Computing Arimoto-Sibson Capacity
Yuki Ishikawa, Akira Kamatsuka (SIT), Koki Kazama (Waseda Univ.) IT2023-22
Arimoto's alternating optimization algorithm (Arimoto--Blahut algorithm) has been proposed as an algorithm for calculati... [more] IT2023-22
pp.44-49
IT 2023-08-04
10:20
Kanagawa Shonan Institute of Technology
(Primary: On-site, Secondary: Online)
Hölder's Reverse Inequality and Its Application to Computation of Lapidoth--Pfister Mutual Information
Akira Kamatsuka (SIT), Koki Kazama (Waseda Univ.) IT2023-23
The H"{o}lder's inequality, a fundamental theoretical inequality, is employed to examine the characteristics of the reli... [more] IT2023-23
pp.50-55
IT 2023-08-04
13:45
Kanagawa Shonan Institute of Technology
(Primary: On-site, Secondary: Online)
A Note on Private Coded Computation Method with Tolerance against Erasure of Responses from Server Groups
Yusuke Morishita, Atsushi Miki, Koki Kazama, Toshiyasu Matsushima (Waseda Univ.) IT2023-27
Coded Computation (CC) is used by a user to perform Distributed Computation using multiple servers to speed up the compu... [more] IT2023-27
pp.74-79
EMM, IT 2023-05-11
13:50
Kyoto Rakuyu Kaikan (Kyoto Univ. Yoshida-South Campus)
(Primary: On-site, Secondary: Online)
A Note on a New Method for Reducing Computation Time in Private Coded Computation
Atsushi Miki, Shenzhe Gao, Koki Kazama, Toshiyasu Matsushima (Waseda Univ.) IT2023-3 EMM2023-3
Coded Computation is a mechanism for accelerating computations through distributed processing using multiple servers. Th... [more] IT2023-3 EMM2023-3
pp.12-17
RCS, SIP, IT 2022-01-21
09:00
Online Online An Approximation by Meta-Tree Boosting Method to Bayesian Optimal Prediction for Decision Tree Model
Wenbin Yu, Koki Kazama, Yuta Nakahara, Naoki Ichijo (Waseda Univ.), Shota Saito (Gunma Univ.), Toshiyasu Matsushima (Waseda Univ.) IT2021-67 SIP2021-75 RCS2021-235
 [more] IT2021-67 SIP2021-75 RCS2021-235
pp.219-224
IBISML 2021-03-03
14:25
Online Online Markov Decision Processes for Simultaneous Control of Multiple Objects with Different State Transition Probabilities in Each Cluster
Yuto Motomura, Akira Kamatsuka, Koki Kazama, Toshiyasu Matsushima (Waseda Univ.) IBISML2020-49
In this study, we propose an extended MDP model, which is a Markov decision process model with multiple control objects ... [more] IBISML2020-49
pp.47-54
ISEC, IT, WBS 2020-03-11
11:45
Hyogo University of Hyogo
(Cancelled but technical report was issued)
A Note on the Relationship between Smooth Locally Decodable Codes and Private Information Retrieval
Koki Kazama, Akira Kamatsuka (Waseda Univ.), Takahiro Yoshida (Yokohama Col. of Commerce), Toshiyasu Matsushima (Waseda Univ.) IT2019-120 ISEC2019-116 WBS2019-69
We focus on smooth locally decodable codes (SLDC) and Private Information Retrieval (PIR).
Recently, the relationship b... [more]
IT2019-120 ISEC2019-116 WBS2019-69
pp.201-206
RCS, IT, SIP 2016-01-18
10:10
Osaka Kwansei Gakuin Univ. Osaka Umeda Campus A Note on Unequal Error Protection in Random Network Coding
Tomohiko Saito (Tokyo City Univ.), Koki Kazama (Waseda Univ.), Toshihiro Niinomi (Tokyo City Univ.), Toshiyasu Matsushima (Waseda Univ.) IT2015-48 SIP2015-62 RCS2015-280
Unequal Error Protection (UEP) codes were proposed by Masnick et al. and organized by Dunning, Gils and so on. On the ot... [more] IT2015-48 SIP2015-62 RCS2015-280
pp.1-6
RCS, IT, SIP 2016-01-18
10:35
Osaka Kwansei Gakuin Univ. Osaka Umeda Campus A Study on Soft Decision Decoding for Array-Error Channel
Koki Kazama, Akira Kamatsuka, Toshiyasu Matsushima (Waseda Univ.) IT2015-49 SIP2015-63 RCS2015-281
 [more] IT2015-49 SIP2015-63 RCS2015-281
pp.7-12
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