Toshio Nakagawa

According to our database, Toshio Nakagawa authored at least 57 papers between 1971 and 2022.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2022

A Revisit of Age-Based Replacement Models With Exponential Failure Distributions.

Xufeng Zhao, Butong Li, Satoshi Mizutani, Toshio Nakagawa

IEEE Trans. Reliab., 2022

Preventive replacement policies for parallel systems with deviation costs between replacement and failure.

Xufeng Zhao, Satoshi Mizutani, Mingchih Chen, Toshio Nakagawa

Ann. Oper. Res., 2022

Periodic replacement policies with shortage and excess costs.

Xufeng Zhao, Mingchih Chen, Toshio Nakagawa

Ann. Oper. Res., 2022

2021

Age and periodic replacement policies with two failure modes in general replacement models.

Satoshi Mizutani, Xufeng Zhao, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2021

2020

Optimal inspection models with minimal repair.

Kodo Ito, Satoshi Mizutani, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2020

Which Replacement Is Better at Working Cycles or Number of Failures.

Satoshi Mizutani, Xufeng Zhao, Toshio Nakagawa

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

2019

Replacement policies with general models.

Mingchih Chen, Xufeng Zhao, Toshio Nakagawa

Ann. Oper. Res., 2019

2017

Comparisons of replacement policies with periodic times and repair numbers.

Xufeng Zhao, Cunhua Qian, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2017

Age replacement models: A summary with new perspectives and methods.

Xufeng Zhao, Khalifa N. Al-Khalifa, Abdel Magid S. Hamouda, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2017

2016

First and Last Triggering Event Approaches for Replacement With Minimal Repairs.

Xufeng Zhao, Khalifa N. Al-Khalifa, Abdel Magid S. Hamouda, Toshio Nakagawa

IEEE Trans. Reliab., 2016

Replacement policies for a parallel system with shortage and excess costs.

Xufeng Zhao, Mingchih Chen, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2016

What is Middle Maintenance Policy?

Xufeng Zhao, Khalifa N. Al-Khalifa, Abdel Magid S. Hamouda, Toshio Nakagawa

Qual. Reliab. Eng. Int., 2016

A study about integrating video contents with web services based on the RDF.

Makoto Urakawa, Masaru Miyazaki, Ichiro Yamada, Hiroshi Fujisawa, Toshio Nakagawa

Int. J. Space Based Situated Comput., 2016

Over-time and over-level replacement policies with random working cycles.

Xufeng Zhao, Toshio Nakagawa

Ann. Oper. Res., 2016

Some Considerations of Age Estimation Method for "Augmented TV" Based on Posture of Gripping Tablet PC.

Yuria Suzuki, Hiroyuki Kawakita, Michihiro Uehara, Toshio Nakagawa, Hiromitsu Nishimura, Akihiko Shirai

Proceedings of the HCI International 2016 - Posters' Extended Abstracts, 2016

2015

Where does "whichever occurs first" hold for preventive maintenance modelings?

Xufeng Zhao, Hu-Chen Liu, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2015

Approximate methods for optimal replacement, maintenance, and inspection policies.

Xufeng Zhao, Khalifa N. Al-Khalifa, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2015

Optimal periodic and random inspections with first, last and overtime policies.

Xufeng Zhao, Toshio Nakagawa

Int. J. Syst. Sci., 2015

Overtime Replacement Policies with Finite Operating Interval and Number.

Satoshi Mizutani, Xufeng Zhao, Toshio Nakagawa

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015

Which is better for replacement policies with continuous or discrete scheduled times?

Xufeng Zhao, Satoshi Mizutani, Toshio Nakagawa

Eur. J. Oper. Res., 2015

My Health Dictionary: Study on Web Service using Program Information Data-hub as Linked Open Data.

Masaru Miyazaki, Makoto Urakawa, Ichiro Yamada, Kikuka Miura, Taro Miyazaki, Hiroshi Fujisawa, Toshio Nakagawa

Proceedings of the ISWC 2015 Posters & Demonstrations Track co-located with the 14th International Semantic Web Conference (ISWC-2015), 2015

A New Method of Utilizing Video Content Structured on the Basis of the RDF: Combining Broadcasting Content with External Services Using RDF Triples.

Makoto Urakawa, Masaru Miyazaki, Ichiro Yamada, Hiroshi Fujisawa, Toshio Nakagawa

Proceedings of the 18th International Conference on Network-Based Information Systems, 2015

2014

Optimal Replacement Last With Continuous and Discrete Policies.

Xufeng Zhao, Toshio Nakagawa, Ming Jian Zuo

IEEE Trans. Reliab., 2014

Augmented TV: An augmented reality system for TV programs beyond the TV screen.

Hiroyuki Kawakita, Toshio Nakagawa

Proceedings of the 4th International Conference on Multimedia Computing and Systems, 2014

A downloadable conditional access system for satellite broadcasting.

Yusei Nishimoto, Hiroyuki Kawakita, Chigusa Yamamura, Toshio Nakagawa, Tomoyuki Inoue

Proceedings of the IEEE International Conference on Consumer Electronics, 2014

Comparisons of standby and parallel systems for processing times.

Mingchih Chen, Xufeng Zhao, Toshio Nakagawa

Proceedings of the IEEE 18th International Conference on Computer Supported Cooperative Work in Design, 2014

2013

Optimal policies for cumulative damage models with maintenance last and first.

Xufeng Zhao, Cunhua Qian, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2013

Reliability analysis of a replication with limited number of journaling files.

Mitsutaka Kimura, Mitsuhiro Imaizumi, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2013

Special issue on stochastic reliability and maintenance modeling with real applications.

Tadashi Dohi, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2013

Optimal redundant systems for works with random processing time.

Mingchih Chen, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2013

Optimal study number of stochastic e-learning system.

Syouji Nakamura, Keiko Nakayama, Toshio Nakagawa

Int. J. Knowl. Web Intell., 2013

2012

Optimization Problems of a Parallel System With a Random Number of Units.

Toshio Nakagawa, Xufeng Zhao

IEEE Trans. Reliab., 2012

Optimal imperfect preventive maintenance policies for a used system.

Xufeng Zhao, Toshio Nakagawa, Cunhua Qian

Int. J. Syst. Sci., 2012

Optimization problems of replacement first or last in reliability theory.

Xufeng Zhao, Toshio Nakagawa

Eur. J. Oper. Res., 2012

Optimal Tenuring and Major Collection times for a Generational Garbage Collector.

Xufeng Zhao, Syouji Nakamura, Toshio Nakagawa

Asia Pac. J. Oper. Res., 2012

Optimal Scheduling of Random Works with Reliability Application.

Mingchih Chen, Toshio Nakagawa

Asia Pac. J. Oper. Res., 2012

Stochastic Applications for e-Learning System.

Syouji Nakamura, Keiko Nakayama, Toshio Nakagawa

Proceedings of the Intelligent Interactive Multimedia: Systems and Services, 2012

2011

Two Generational Garbage Collection Models with Major Collection Time.

Xufeng Zhao, Syouji Nakamura, Toshio Nakagawa

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011

Replacement Policies with Interval of Dual System for System Transition.

Satoshi Mizutani, Toshio Nakagawa

Proceedings of the Software Engineering, Business Continuity, and Education, 2011

Reliability Consideration of a Server System with Replication Buffering Relay Method for Disaster Recovery.

Mitsutaka Kimura, Mitsuhiro Imaizumi, Toshio Nakagawa

Proceedings of the Software Engineering, Business Continuity, and Education, 2011

Periodic and Random Inspection Policies for Computer Systems.

Mingchih Chen, Cunhua Qian, Toshio Nakagawa

Proceedings of the Software Engineering, Business Continuity, and Education, 2011

2010

Replacement and inspection policies for products with random life cycle.

Won Young Yun, Toshio Nakagawa

Reliab. Eng. Syst. Saf., 2010

A summary of periodic and random inspection policies.

Toshio Nakagawa, Satoshi Mizutani, Mingchih Chen

Reliab. Eng. Syst. Saf., 2010

Optimal Backup Interval for a Database System with Full and Periodic Incremental Backup.

Cunhua Qian, Yingyan Huang, Xufeng Zhao, Toshio Nakagawa

J. Comput., 2010

Replacement and Preventive Maintenance Models with Random Working Times.

Mingchih Chen, Syouji Nakamura, Toshio Nakagawa

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010

2009

A summary of maintenance policies for a finite interval.

Toshio Nakagawa, Satoshi Mizutani

Reliab. Eng. Syst. Saf., 2009

Random Checkpoint Models with <i>N</i> Tandem Tasks.

Toshio Nakagawa, Kenichiro Naruse, Sayori Maeji

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

2008

Optimal Maintenance Policies for a System With Multiechelon Risks.

Toshio Nakagawa, Kodo Ito

IEEE Trans. Syst. Man Cybern. Part A, 2008

2006

Optimal periodic testing policy for circuit with self-testing.

Satoshi Mizutani, Toshio Nakagawa, Kodo Ito, Hiroaki Sandoh

Comput. Math. Appl., 2006

Reliability consideration of a mobile communication system with network congestion.

Mitsutaka Kimura, Kazumi Yasui, Toshio Nakagawa, Naohiro Ishii

Comput. Math. Appl., 2006

2003

How much should we reweigh?

Hiroaki Sandoh, Toshio Nakagawa

J. Oper. Res. Soc., 2003

2002

Optimal Policies for a Database System with Two Backup Schemes.

Cunhua Qian, Yu Pan, Toshio Nakagawa

RAIRO Oper. Res., 2002

1986

Inspection policies for a computer with (n-1)/n parallel redundant system.

Kazumi Yasui, Toshio Nakagawa, Yoshiya Sawa

Syst. Comput. Jpn., 1986

1976

A summary of optimum preventive maintenance policies for a two-unit standby redundant system.

Toshio Nakagawa, Shunji Osaki

Math. Methods Oper. Res., 1976

1974

A Model for Interaction of Two Renewal Processes with Threshold Level

Toshio Nakagawa, Shunji Osaki

Inf. Control., January, 1974

The Expected Number of Visits to State <i>k</i> before a Total System Failure of a Complex System with Repair Maintenance.

Toshio Nakagawa

Oper. Res., 1974

1971

On a Two-Unit Standby Redundant System with Standby Failure.

Shunji Osaki, Toshio Nakagawa

Oper. Res., 1971