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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 24  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
NS 2022-05-13
09:50
Kyoto Rakuyu Kaikan, Kyoto Univ. + Online
(Primary: On-site, Secondary: Online)
Proposing Federated Consensus and its Performance Evaluation Experiment with Many Nodes
Takaaki Yanagihara, Akihiro Fujihara (CIT) NS2022-15
Public blockchains have an extremely slow transaction processing capacity,
which is known as the blockchain scalability... [more]
NS2022-15
pp.34-39
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
IN, NS
(Joint)
2021-03-05
09:50
Online Online Performance evaluation of traffic vehicle group guidance method based on proximity information sharing -- Impact of percentage of proximity information sharing vehicles --
Shogo Amita, Akihiro Fujihara (Chiba Inst. Tech.) IN2020-72
A route guidance method has been proposed in which each evacuee autonomously collects
information on roads that are im... [more]
IN2020-72
pp.108-113
IN, NS
(Joint)
2021-03-05
09:10
Online Online Experimental performance evaluation on avoidance of blockchain oracle problem using collective intelligence
Yutaka Kato, Akihiro Fujihara (CIT) IN2020-74
Bitcoin-type blockchains have a problem called oracle problem, where blockchains themselves cannot prove the authenticit... [more] IN2020-74
pp.120-125
NS, IN
(Joint)
2020-03-06
11:20
Okinawa Royal Hotel Okinawa Zanpa-Misaki
(Cancelled but technical report was issued)
Considering a human mobility model inspired by reinforcement learning
Yuutaro Iwai, Akihiro Fujihara (CIT) IN2019-118
Reinforcement learning is a machine learning framework that
an agent repeatedly observes reward from environment as a ... [more]
IN2019-118
pp.237-242
NS, IN
(Joint)
2020-03-06
14:30
Okinawa Royal Hotel Okinawa Zanpa-Misaki
(Cancelled but technical report was issued)
Experimental performance evaluation of cross-referencing method for multiple blockchains
Takaaki Yanagihara, Akihiro Fujihara (CIT) IN2019-139
In this study, we propose a cross-referencing method that
multiple domains manage their own blockchain and they period... [more]
IN2019-139
pp.363-368
IN, NS
(Joint)
2019-03-04
11:10
Okinawa Okinawa Convention Center A proposal of mobile crowdsensing application using blockchain technology
Akihiro Fujihara (CIT) IN2018-96
Mobile crowdsensing is a method to collectively gather and share
local data with the help of a large number of anonymo... [more]
IN2018-96
pp.73-78
NS, IN
(Joint)
2018-03-01
11:30
Miyazaki Phoenix Seagaia Resort Model for generation of social network considering human mobility
Naoto Fukae (Kwansei Gakuin Univ.), Akihiro Fujihara (Chiba Institute of Tech.), Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2017-104
 [more] IN2017-104
pp.87-92
NS, IN
(Joint)
2018-03-02
15:00
Miyazaki Phoenix Seagaia Resort Proposing distributed traffic information system using blockchain technology
Akihiro Fujihara (CIT) IN2017-138
In recent years, blockchain technologies have been attracting
attention as a highly reliable data structure with resist... [more]
IN2017-138
pp.291-296
NS, IN
(Joint)
2017-03-03
11:20
Okinawa OKINAWA ZANPAMISAKI ROYAL HOTEL Spatial pattern analysis using chromatic network motif
Jinattaporn Khumsri, Akihiro Fujihara (FUT) IN2016-144
There are two famous supermarkets in Thailand: Big C and Lotus. They are the highest competitive supermarkets whose hold... [more] IN2016-144
pp.281-286
NS, IN
(Joint)
2017-03-03
14:00
Okinawa OKINAWA ZANPAMISAKI ROYAL HOTEL Effects of methods for generating people flow data on epidemic routing
Yusuke Sakai, Akihiro Fujihara (FUT) IN2016-167
People Flow Project by Center for Spatial Information Science in the University of Tokyo provides people flow data creat... [more] IN2016-167
pp.419-424
NS, IN
(Joint)
2016-03-04
09:30
Miyazaki Phoenix Seagaia Resort Estimating a proper communication distance in epidemic routing using people flow data
Akihiro Fujihara (Fukui Univ. Tech.) IN2015-124
In recent years, Proximity-based Services have been attracted attention as
information-communication networking withou... [more]
IN2015-124
pp.95-100
NS, IN
(Joint)
2015-03-03
11:30
Okinawa Okinawa Convention Center A system for detecting moving direction with iBeacon
Takuma Yanagizawa, Akihiro Fujihara (Fukui Univ. of Tech.) IN2014-148
For the recent explosive spread of smartphones in the world, the possibility
of novel services using smartphone has be... [more]
IN2014-148
pp.163-168
NS, IN
(Joint)
2014-03-06
10:10
Miyazaki Miyazaki Seagia Self-organized follow-me evacuation guidance method using opportunistic networking
Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2013-146
When a wide-scale disaster hits in urban areas, there is a serious problem
to solve how to plan quick evacuation for e... [more]
IN2013-146
pp.19-24
NS, IN
(Joint)
2013-03-08
09:20
Okinawa Okinawa Zanpamisaki Royal Hotel A method for predicting migration path based on human mobility model
Koji Oku, Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2012-209
In recent years, Delay- and Disruption-Tolerant Networking (DTN) has attracted remarkable attention as an information-co... [more] IN2012-209
pp.329-334
NS, IN
(Joint)
2013-03-08
10:50
Okinawa Okinawa Zanpamisaki Royal Hotel Effects of detour-route switching decisions around congested areas in an evacuation guidance using opportunistic communication
Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2012-213
Some studies on effective disaster evacuation guidance in large-scale
disaster situations in urban areas have been und... [more]
IN2012-213
pp.353-358
NS, IN
(Joint)
2012-03-08
11:20
Miyazaki Miyazaki Seagia Real-time disaster evacuation guidance using opportunistic communication
Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2011-157
Last year's Tohoku earthquake and tsunami produce our reconsideration
of effective information communication technolog... [more]
IN2011-157
pp.121-126
IN, NS
(Joint)
2011-03-03
09:40
Okinawa Okinawa Convention Center Bluetooth&Wi-Fi mobile wireless communication experiments and the power law of passing-by frequency distributions -- The impact of once-in-a-lifetime chance of meetings --
Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2010-167
For the development of wireless communication technologies and
miniaturization of wireless devices, portable wireless ... [more]
IN2010-167
pp.139-144
IN, NS
(Joint)
2011-03-03
10:00
Okinawa Okinawa Convention Center Epidemic Routing Method Using Mobile History for Sparsely Populated Mobile Ad Hoc Networks
Shiro Ono, Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2010-168
The message deliveries based on the store-carry-forward routing schemes, such as epidemic routing, are one of the fundam... [more] IN2010-168
pp.145-150
NS, IN
(Joint)
2010-03-05
08:50
Miyazaki Miyazaki Phoenix Seagaia Resort (Miyazaki) Relaxation times of information gatherings in the epidemically information sharing process with mobile sensors
Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2009-182
We theoretically investigated a general property of data gathering times

in a wireless communication system with ran... [more]
IN2009-182
pp.229-234
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