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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IN, NS (Joint) |
2023-03-02 16:10 |
Okinawa | Okinawa Convention Centre + Online (Primary: On-site, Secondary: Online) |
Simulation Evaluation of Multiple Plumtree Application in Blockchain Networks Yusuke Kitgawa (Kogakuin Univ.), Kazuyuki Shudo (Tokyo Tech), Osamu Mizuno, Ryohei Banno (Kogakuin Univ.) |
[more] | |
| IA, CQ, MIKA (Joint) |
2022-09-15 16:00 |
Hokkaido | Hokkaido Citizens Actives Center (Primary: On-site, Secondary: Online) |
Simulation Evaluation of Plumtree Application in Blockchain Networks Yusuke Kitagawa (Kogakuin Univ), Kazuyuki Shudo (Tokyo Tech), Osamu Mizuno, Ryohei Banno (Kogakuin Univ)  IA2022-19 |
In a blockchain, many nodes are randomly interconnected to form a peer-to-peer (P2P) network, and each node broadcasts i... [more] | IA2022-19 pp.26-31 |
| CQ | 2022-07-22 10:30 |
Osaka | Ritsumeikan Ibaraki Future Plaza Conference Hall (Primary: On-site, Secondary: Online) |
[Invited Talk]
Researches on Blockchain "Networks" Kazuyuki Shudo (Kyoto Univ.) CQ2022-24 |
[more] | CQ2022-24 p.42 |
| IA, ICSS | 2022-06-23 13:30 |
Nagasaki | Univ. of Nagasaki (Primary: On-site, Secondary: Online) |
Distributed Clock Synchronization Protocol for Proof of Stake Blockchain Yuya Miki, Kazuyuki Shudo (Tokyo Tech) IA2022-2 ICSS2022-2 |
In a Proof of Stake (PoS) blockchain, all nodes need to be able to recognize approximately synchronized clocks. A PoS bl... [more] | IA2022-2 ICSS2022-2 pp.8-14 |
| IA, SITE, IPSJ-IOT [detail] | 2022-03-07 15:20 |
Kyoto | Kyoto University, Yoshida Campus (Primary: On-site, Secondary: Online) |
Accelerating Block Propagation by Sender Switchover in a Blockchain Network Akira Sakurai, Kazuyuki Shudo (Tokyo Tech) SITE2021-54 IA2021-67 |
[more] | SITE2021-54 IA2021-67 pp.52-57 |
| IA, SITE, IPSJ-IOT [detail] | 2022-03-07 15:45 |
Kyoto | Kyoto University, Yoshida Campus (Primary: On-site, Secondary: Online) |
Block Interval Adjustment Based on Block Propagation Time in A Blockchain Masumi Arakawa, Kazuyuki Shudo (Tokyo Tech) SITE2021-55 IA2021-68 |
Throughput (TPS) of transaction confirmation is one of the most important performance metrics of public blockchains. It ... [more] | SITE2021-55 IA2021-68 pp.58-62 |
| PN, NS, OCS (Joint) |
2021-06-24 15:00 |
Online | Online | [Invited Talk]
t.b.d. Kazuyuki Shudo (Tokyo Tech) NS2021-27 OCS2021-3 PN2021-9 |
Blockchain is supported by cryptography as its origin Bitcoin is called cryptocurrency. On the one hand theories and tec... [more] | NS2021-27 OCS2021-3 PN2021-9 p.14(NS), p.14(OCS), p.32(PN) |
| IA, ICSS | 2021-06-21 15:50 |
Online | Online | Verification of Applying Plumtree Algorithm to Blockchain Networks Yusuke Kitagawa (Kogakuin Univ.), Kazuyuki Shudo (Tokyo Tech), Osamu Mizuno, Ryohei Banno (Kogakuin Univ.) IA2021-7 ICSS2021-7 |
Blockchain is gaining attention as a technology to support cryptocurrency. It is a system that prevents internal and ext... [more] | IA2021-7 ICSS2021-7 pp.39-42 |
| SITE, IA, IPSJ-IOT [detail] | 2021-03-01 11:45 |
Online | Online | Impact of saving attack on blockchain consensus Kai Otsuki (TIT), Ryuya Nakamura (LayerX), Kazuyuki shudo (TIT) SITE2020-41 IA2020-37 |
(To be available after the conference date) [more] | SITE2020-41 IA2020-37 pp.15-22 |
| SITE, IA, IPSJ-IOT [detail] | 2021-03-02 10:45 |
Online | Online | Broadcasts with Tree Selection on an Overlay Network Takeshi Kaneko, Kazuyuki Shudo (TokyoTech) SITE2020-49 IA2020-45 |
On an overlay network where a number of nodes work autonomously in a decentralized way, the efficiency of broadcasts has... [more] | SITE2020-49 IA2020-45 pp.64-71 |
| IA | 2021-01-29 14:25 |
Online | Online | A Routing Method for Range Queries Utilizing Detour Routes on Skip Graph Yuya Miki, Takeshi Kaneko (Tokyo Tech), Ryohei Banno (Tokyo Tech/Kogakuin Univ.), Kazuyuki Shudo (Tokyo Tech) IA2020-33 |
A structured overlay is a technique to construct an autonomous decentralized network of nodes and to achieve efficient r... [more] | IA2020-33 pp.15-20 |
| NS, IN (Joint) |
2020-03-05 09:30 |
Okinawa | Royal Hotel Okinawa Zanpa-Misaki (Cancelled but technical report was issued) |
Shortening Path Lengths on P2P Networks with a Double Sweep Based Technique Takeshi Kaneko, Ryohei Banno, Kazuyuki Shudo (TokyoTech) NS2019-186 |
[more] | NS2019-186 pp.53-58 |
| NS, IN (Joint) |
2020-03-05 10:10 |
Okinawa | Royal Hotel Okinawa Zanpa-Misaki (Cancelled but technical report was issued) |
Effects of Relay Networks in Bitcoin Kai Otsuki, Kazuyuki Shudo, Ryohei Banno (TIT) NS2019-192 |
Bitcoin's throughput falls greatly behind that of centralized systems such as Visa and PayPal. Its throughput must be ... [more] |
NS2019-192 pp.89-94 |
| NS, IN (Joint) |
2020-03-05 11:00 |
Okinawa | Royal Hotel Okinawa Zanpa-Misaki (Cancelled but technical report was issued) |
Block Interval Adjustment Toward Fair Proof-of-Work Blockchains Reiki Kanda, Kazuyuki Shudo (Tokyo Tech) NS2019-206 |
We propose a finer measure of fairness than existing one. Next, we propose a method of adjusting the block interval tha... [more] |
NS2019-206 pp.169-174 |
| NS, IN (Joint) |
2020-03-05 11:20 |
Okinawa | Royal Hotel Okinawa Zanpa-Misaki (Cancelled but technical report was issued) |
Effects of Coin Age on Centralization of Proof-of-Stake Blockchains Shu Takayama, Ryunosuke Nagayama, Kai Otsuki, Kazuyuki Shudo (Tokyo Tech) NS2019-207 |
Proof-of-Stake is a type of consensus protocol used in blockchain technology. Peercoin is the first cryptocurrency with ... [more] | NS2019-207 pp.175-178 |
| NS, IN (Joint) |
2020-03-05 11:40 |
Okinawa | Royal Hotel Okinawa Zanpa-Misaki (Cancelled but technical report was issued) |
Simulation of the Bitcoin Network Considering Compact Block Relay and Internet Improvements Ryunosuke Nagayama, Kazuyuki Shudo, Ryohei Banno (Tokyo Tech) NS2019-208 |
Improving transaction throughput is an important challenge for Bitcoin. However, shortening the block generation interva... [more] | NS2019-208 pp.179-183 |
| RECONF | 2019-05-09 17:20 |
Tokyo | Tokyo Tech Front | [Invited Talk]
Engineers' and Scientists' Way of Life Kazuyuki Shudo (Tokyo Tech) RECONF2019-9 |
(To be available after the conference date) [more] | RECONF2019-9 p.47 |
| IA, SITE, IPSJ-IOT [detail] | 2019-03-08 10:20 |
Tokushima | Grand XIV Naruto | SimBlock: A Blockchain Network Simulator Yusuke Aoki, Kai Otsuki, Takashi Kaneko, Ryohei Banno, Kazuyuki Shudo (Tokyo Tech) SITE2018-78 IA2018-70 |
Blockchain, which is a technology for distributedly managing ledger information over multiple nodes without a centralize... [more] | SITE2018-78 IA2018-70 pp.219-224 |
| IA, SITE, IPSJ-IOT [detail] | 2019-03-08 10:45 |
Tokushima | Grand XIV Naruto | Proximity Neighbor Selection in a Blockchain Network Yusuke Aoki, Kazuyuki Shudo (Tokyo, Japan) SITE2018-79 IA2018-71 |
Blockchain, which is a technology for distributedly managing ledger information over multiple nodes without a centralize... [more] | SITE2018-79 IA2018-71 pp.225-232 |
| IA, SITE, IPSJ-IOT [detail] | 2019-03-08 14:00 |
Tokushima | Grand XIV Naruto | Effect of relay networks on the Bitcoin network. Kai Otuki, Yuusuke Aoki, Kazuyuki Shudo (TIT) SITE2018-84 IA2018-76 |
Bitcoin and other blockchains made it possible to manage ledger information without a centralized sys- tem even in a gro... [more] | SITE2018-84 IA2018-76 pp.309-316 |
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