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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ICM, NS, CQ, NV (Joint) |
2023-11-22 14:10 |
Ehime | Ehime Prefecture Gender Equality Center (Primary: On-site, Secondary: Online) |
Probabilistic Block Transfer Method Considering Propagation Delay Between Regions in Blockchain Networks Shintarou Ohtsuka, Yuki Ishida, Masaki Hanada, Fumikazu Iseki (Tokyo Univ. of information Sciences)  NS2023-121 |
Blockchain is a secure distributed ledger system, which is based on peer-to-peer networks. Cryptocurrencies, such as Bi... [more] | NS2023-121 pp.62-67 |
| IN, NS (Joint) |
2023-03-03 11:20 |
Okinawa | Okinawa Convention Centre + Online (Primary: On-site, Secondary: Online) |
Implementing Factcheck Registry using Bitcoin Masaki Sakurai, Akihiro Fujihara (CIT) IN2022-108 |
In recent years, the spread of false information and misinformation through SNS and information media has become a probl... [more] | IN2022-108 pp.253-258 |
| CQ, ICM, NS, NV (Joint) |
2021-11-26 14:50 |
Fukuoka | JR Hakata Stn. Hakata EkiHigashi Rental Room (Primary: On-site, Secondary: Online) |
Optimal Neighbor Selection Proposal in Blochchain Networks with Multiple Regions Hiroshi Matsuura, Yoshinori Goto, Hidehiro Sao (NTT) NS2021-92 |
Blockchain is widely used for the platform of crypto-currencies represented by Bitcoin. In a Blockchain network (NW), sh... [more] | NS2021-92 pp.38-43 |
| IN, NS (Joint) |
2021-03-04 11:40 |
Online | Online | Bitcoin Scaling Test Network Performance Evaluation Experiment Akihiro Fujihara (CIT) IN2020-69 |
Bitcoin Scaling Test Network (STN) is an experimental network to solve the scalability problem of Bitcoin by using on-... [more] |
IN2020-69 pp.91-96 |
| ICSS, IPSJ-SPT | 2021-03-02 10:25 |
Online | Online | Consideration on the mechanism of identifying and tracking Bitcoin users Toshiaki Saisho (Advanced IT Corp.), Shigeo Tsujii (Chuo Univ.), Kouichi Sakurai (Kyushu Univ./ATR) ICSS2020-44 |
The use of CryptoAssets for money laundering and settlement of fraudulent and illegal transactions due to strong anonymi... [more] | ICSS2020-44 pp.108-113 |
| ISEC | 2020-05-20 14:40 |
Online | Online | Making Variance of Mining Time Smaller for Computational Problems Based on Hash Functions
-- Serial Concatenation and Parallel Concatenation -- Hiroaki Anada (Univ. Nagasaki), Kouichi Sakurai (Kyushu Univ.) ISEC2020-9 |
In Bitcoin, the computational problem which miners should solve is an equation described in the term of a hash functio... [more] |
ISEC2020-9 pp.33-40 |
| 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 11:40 |
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 |
| RISING (2nd) |
2019-11-26 14:10 |
Tokyo | Fukutake Learning Theater, Hongo Campus, Univ. Tokyo | [Poster Presentation]
* Masahiro Sasabe (NAIST) |
(To be available after the conference date) [more] | |
| NS, ICM, CQ, NV (Joint) |
2019-11-21 09:30 |
Hyogo | Rokkodai 2nd Campus, Kobe Univ. | Risk Evaluation of Block Diffusion Delaying Attacks in a Bitcoin Network Masanari Yamamoto, Masahiro Sasabe, Shoji Kasahara (NAIST) CQ2019-88 |
In the Bitcoin system，transactions and their collections, i.e., blocks, are distributed over a Peer-to-Peer (P2P) networ... [more] | CQ2019-88 pp.1-6 |
| IA | 2019-11-14 14:35 |
Tokyo | Kwansei Gakuin University, Tokyo Marunouchi Campus (Sapia Tower) | [Invited Talk]
Interruption Risk of Competitive Block Diffusion in a Bitcoin Network Masahiro Sasabe (NAIST) IA2019-27 |
Bitcoin is one of the cryptcurrency systems, which enables anonymous users to reach a global consensus on their distribu... [more] | IA2019-27 pp.21-26 |
| NS | 2019-10-11 10:10 |
Aichi | Nagoya Institute of Technology | [Invited Lecture]
Mathematical Modeling of Block Distribution Interruption in a Bitcoin Network Masahiro Sasabe (NAIST) NS2019-116 |
(To be available after the conference date) [more] | NS2019-116 p.75 |
| ISEC, SITE, ICSS, EMM, HWS, BioX, IPSJ-CSEC, IPSJ-SPT [detail] | 2019-07-23 11:35 |
Kochi | Kochi University of Technology | A method of giving trust to users in Bitcoin Asuka Suzuki, Teppei Sato (Tsukuba Univ.), Omote Kazumasa (Tsukuba Univ./NICT) ISEC2019-16 SITE2019-10 BioX2019-8 HWS2019-11 ICSS2019-14 EMM2019-19 |
In the Bitcoin network, there is no construction to give trust to the participating nodes. On the other hand, there is P... [more] | ISEC2019-16 SITE2019-10 BioX2019-8 HWS2019-11 ICSS2019-14 EMM2019-19 pp.29-34 |
| 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 |
| IA, SITE, IPSJ-IOT [detail] | 2019-03-08 14:25 |
Tokushima | Grand XIV Naruto | Estimation of Data Prooagation Time on the Bitcoin Network Reiki Kanda, Kazuyuki Shudo (Tokyo Tech) SITE2018-85 IA2018-77 |
The goal of this research is to estimate data propagation time on the Bitcoin network. The means here is Network Coordin... [more] | SITE2018-85 IA2018-77 pp.317-322 |
| SITE, IPSJ-CE, IPSJ-CLE | 2017-12-08 13:00 |
Ehime | An Evaluation of Bitcoin Full Node Cluster
-- Investigation of governance control over block chains by ratio of number of nodes -- Shigeichiro Yamasaki (Kindai Univ.) SITE2017-54 |
The purpose of this research is to show that the full node operator of the P2P type system in the block chain can also b... [more] | SITE2017-54 pp.1-4 |
|
| IA | 2017-10-13 15:40 |
Tokyo | Fukutake Hall, The University of Tokyo | An Experiment on Estimation of Data Propagation Time on the Bitcoin Network Reiki Kanda, Masaaki Ohnishi, Kazuyuki Shudo (Tokyo Inst. of Tech.) IA2017-20 |
The goal of this research is to estimate data propagation time on the Bitcoin network. The means here is Network Coordin... [more] | IA2017-20 pp.7-12 |
| NS | 2017-04-20 14:20 |
Toyama | Toyama Shoko Kaigisyo | A fast and secure payment confirmation method in Bitcoin Kento Nakanishi, Satoshi Ohzahata, Toshihiko Kato (UEC) NS2017-3 |
Bitcoin published in 2008 has been supported development of cryptographic currency in recent years. The blockchain is on... [more] | NS2017-3 pp.13-18 |
| ICSS, IPSJ-SPT | 2017-03-13 14:25 |
Nagasaki | University of Nagasaki | Feature Extraction for Identifying High Yielding Investment Programs Related Transactions in Bitcoin Kentaroh Toyoda, Tomoaki Ohtsuki (Keio Univ.), P. Takis Mathiopoulos (UoA) ICSS2016-49 |
As recent research has revealed, Bitcoin is used as fraudulent activities such as HYIP (High Yield Investment Programs).... [more] | ICSS2016-49 pp.31-36 |
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