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 |