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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 37  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
CQ 2022-07-21
15:30
Osaka Ritsumeikan Ibaraki Future Plaza Conference Hall
(Primary: On-site, Secondary: Online)
[Invited Talk] Data visualization and related technologies in reliability assessment of telecommunication networks
Hiroyuki Funakoshi (NTT-AT) CQ2022-20
The author conducted research on reliability evaluation techniques specific to telecommunication networks. Through this ... [more] CQ2022-20
pp.19-24
CQ 2018-01-19
15:50
Tokyo NII Time series analysis of failure rates of equipments for telecommunication networks. -- Improvement of the method of prediction --
Hiroyuki Funakoshi (NTT) CQ2017-101
The author has been predicted the failure rate of telecommunication network equipments by the state space model. The met... [more] CQ2017-101
pp.93-98
CQ 2017-08-28
10:40
Tokyo Tokyo University of Science Time series analysis of failure rates of equipments for telecommunication networks. -- State space model using Kalman filter --
Hiroyuki Funakoshi (NTT) CQ2017-50
The author has been predicted the failure rate of telecommunication network equipments by the state space model with Bay... [more] CQ2017-50
pp.1-6
CQ 2017-07-27
12:05
Hyogo Kobe University Time series analysis of failure rates of equipments for telecommunication networks. -- State space model using Bayesian inference --
Hiroyuki Funakoshi (NTT) CQ2017-35
The author has been analyzed the failure rate of telecommunication network equipments by time series analysis using ARIM... [more] CQ2017-35
pp.37-42
CQ 2016-07-27
14:00
Osaka The Osaka Umeda Campus, Kwansei Gakuin Univesity A study on estimation of number of spare equipments for telecommunication networks. -- Alternative solution using the binomial distribution --
Hiroyuki Funakoshi, Tatsuya Matsukawa, Takuma Tsubaki (NTT) CQ2016-41
The authors have been proposed a method to estimate the number of spare equipments necessary for the next month from th... [more] CQ2016-41
pp.49-54
IN 2015-10-15
14:30
Osaka Osaka University Time series analysis of failure rates of equipments for telecommunication networks.
Hiroyuki Funakoshi, Tatsuya Matsukawa, Takuma Tsubaki (NTT) IN2015-53
The failure rates of equipments for telecommunication networks are time series. Therefore, time series analysis is requi... [more] IN2015-53
pp.1-6
CQ, IMQ, MVE, IE
(Joint) [detail]
2015-03-03
09:45
Tokyo Seikei Univ. A study on estimation of number of spare equipments for telecommunication networks
Hiroyuki Funakoshi, Tatsuya Matsukawa, Takuma Tsubaki (NTT) CQ2014-113
The authors have been proposed the failure rate estimation method considering the change in number of equipments for tel... [more] CQ2014-113
pp.7-12
IN 2014-10-16
14:55
Osaka Osaka Univ. A study on the quantification of impact of outage for telecommunication networks
Hiroyuki Funakoshi, Tatsuya Matsukawa (NTT) IN2014-75
In order to quantify the impact of outage for telecommunication networks, the product of number of users and service dow... [more] IN2014-75
pp.7-12
IN, NWS
(Joint)
2014-01-23
11:10
Aichi Nagoya International Center A study on the permeation of reliability evaluation for telecommunication networks
Hiroyuki Funakoshi, Tatsuya Matsukawa (NTT) IN2013-119
The authors studied reliability evaluation techniques specialized in telecommunication networks. The basic examinations ... [more] IN2013-119
pp.9-14
RCS, NS
(Joint)
2013-12-19
09:25
Kagawa Sunport Hall Takamatsu Extreme value analysis for large scale outages of telecommunication networks
Hiroyuki Funakoshi, Tatsuya Matsukawa (NTT) NS2013-136
In telecommunication networks, it is difficult to predict the probability of occurrence of large-scale outages because t... [more] NS2013-136
pp.13-18
ASN, RCS, NS, SR
(Joint)
2013-07-19
17:10
Shizuoka Hamamatsu Act City An Economic Impact Evaluation of Telecom Service Disruptions Considering the Capital Loss
Yasuto Nakanishi, Shuichi Karasawa, Kohjun Koshiji, Hiroyuki Funakoshi, Yasunori Matsubayashi (NTT) NS2013-70
We have proposed evaluation methods for the social influence of telecom service disruptions as an economic impact. The ... [more] NS2013-70
pp.197-202
CQ 2013-07-11
13:00
Hokkaido Hokkaido University A failure rate estimation considering the change in the number of equipments -- Improvement of calculation method --
Hiroyuki Funakoshi, Kohjun Koshiji (NTT) CQ2013-14
The authors have been proposed the failure rate estimation method considering the change in the number of equipments for... [more] CQ2013-14
pp.1-6
NS 2013-01-25
12:05
Kumamoto Kumamoto University An Economic Impact Evaluation of Telecom Service Disruptions
Yasuto Nakanishi, Shuichi Karasawa, Hiroyuki Funakoshi, Yasunori Matsubayashi (NTT) NS2012-159
Recently, Telecom service permeates all levels of our lives and roots deeply as a social infrastructure. Therefore,the ... [more] NS2012-159
pp.105-110
IN, IA
(Joint)
2012-12-14
16:10
Hiroshima Hiroshima City Univ. A study on the relationship between repair time distribution and repair pattern for telecommunication networks
Hiroyuki Funakoshi, Kohjun Koshiji (NTT) IN2012-137
The authors have been declared that repair-time distribution for telecommunication networks approximates to mixing log-n... [more] IN2012-137
pp.91-96
CQ, ICM, NS
(Joint)
2012-11-15
09:40
Shiga Nagahama Inst. of Bio-Science and Tech. Reliability Evaluation Considering Communication Scale -- Estimation of the Evaluation and Application for the Evaluation --
Kohjun Koshiji, Hiroyuki Funakoshi, Shuichi Karasawa, Yasunori Matsubayashi (NTT) CQ2012-59
The social demand for securing telecommunications in disasters, such as the Great East Japan Earthquake last year, has b... [more] CQ2012-59
pp.13-18
PRMU, MVE, CQ, IPSJ-CVIM [detail] 2012-01-19
11:40
Osaka   A study on reliability evaluation technique for IPTV service
Yasuto Nakanishi, Kohjun Koshiji, Hiroyuki Funakoshi (NTT), Hitoshi Watanabe (Tokyo Univ of Science) CQ2011-64
(To be available after the conference date) [more] CQ2011-64
pp.49-54
IN, IA
(Joint)
2011-12-15
12:45
Hiroshima Hiroshima City University A study on the maintainability for telecommunication networks -- Improvement of kernel density using lognormal distribution --
Hiroyuki Funakoshi, Yasuto Nakanishi (NTT) IN2011-107
The authors have been established the reliability evaluation methods using actual outage data of telecommunication netwo... [more] IN2011-107
pp.1-6
RCS, IN
(Joint)
2011-05-26
10:30
Tokyo Kikai-Shinko-Kaikan Bldg. A study on the maintainability for telecommunication networks -- Reduction of processing time for non-parametric estimation --
Hiroyuki Funakoshi, Tatsuya Matsukawa, Yasuto Nakanishi (NTT) IN2011-19
The authors have been established the reliability evaluation methods using actual outage data of telecommunication netwo... [more] IN2011-19
pp.7-12
IN 2011-04-21
14:25
Kagawa Kagawa University A study on the maintainability for telecommunication networks -- Non-parametric method and improvement the precision of the analysis --
Hiroyuki Funakoshi, Tatsuya Matsukawa, Yasuto Nakanishi (NTT) IN2011-5
The authors have been established the reliability evaluation methods using actual outage data of telecommunication netwo... [more] IN2011-5
pp.23-28
NS 2010-01-28
12:05
Fukuoka Fukuoka Institute of System LSI Design Industry (Fukuoka) An unavailability simulation of telecommunication networks based on the actual outage data -- Reproduction of the correlation between outage scale and maintenance time --
Hiroyuki Funakoshi, Tatsuya Matsukawa (NTT) NS2009-147
The authors have been insisted on the importance of reliability management for IP networks constructed of commercial equ... [more] NS2009-147
pp.29-34
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