Ushio Sumita

According to our database, Ushio Sumita authored at least 26 papers between 1984 and 2019.

Collaborative distances:

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

2019

A New Approach for Developing Segmentation Algorithms for Strongly Imbalanced Data.

Kazuki Fujiwara, Maiko Shigeno, Ushio Sumita

IEEE Access, 2019

2016

Development and Analysis of Markov Chain Model for Optimally Allocating Operators at Call Centers.

Shan Yu, Ryohei Kubota, Masaki Shobu, Ushio Sumita

Proceedings of the 5th IIAI International Congress on Advanced Applied Informatics, 2016

Development of Segmentation Algorithm for Identifying VOCs (Voice of Customers) with Sales Potential and Those with Negative Attitude at Call Centers.

Ryohei Kubota, Xinlong Hu, Masaki Shobu, Ushio Sumita

Proceedings of the 5th IIAI International Congress on Advanced Applied Informatics, 2016

Development of Recommendation Engines for Enhancing Sales of DIY (Do It Yourself) Stores.

Xinlong Hu, Shan Yu, Masaki Shobu, Ushio Sumita

Proceedings of the 5th IIAI International Congress on Advanced Applied Informatics, 2016

2015

Development of computational algorithms for pricing European bond options under the influence of macro-economic conditions.

Jia-Ping Huang, Ushio Sumita

Appl. Math. Comput., 2015

2013

How to Equip Students with Methodologies and Tools for Capturing Rapidly Changing Environments through Computer Supported Education.

Ushio Sumita, Jun Yoshii

Proceedings of the CSEDU 2013, 2013

2012

Development of Sequential Association Rules for Preventing Minor-stoppages in Semi-conductor Manufacturing.

Sumika Arima, Ushio Sumita, Jun Yoshii

Proceedings of the ICORES 2012, 2012

2011

Credit risk model with contagious default dependencies affected by macro-economic condition.

Hideyuki Takada, Ushio Sumita

Eur. J. Oper. Res., 2011

2010

The impact of mobile access to the internet on information search completion time and customer conversion.

Ushio Sumita, Jinshui Zuo

Electron. Commer. Res. Appl., 2010

Enhancement of e-commerce via mobile accesses to the Internet.

Ushio Sumita, Jun Yoshii

Electron. Commer. Res. Appl., 2010

2009

Dynamic Analysis of a Unified Multivariate Counting Process and Its Asymptotic Behavior.

Ushio Sumita, Jia-Ping Huang

Int. J. Math. Math. Sci., 2009

2008

Optimal threshold analysis of segmentation methods for identifying target customers.

Makoto Mizuno, Akira Saji, Ushio Sumita, Hideo Suzuki

Eur. J. Oper. Res., 2008

2001

Optimal internal pricing and capacity planning for service facility with finite buffer.

Ushio Sumita, Yasushi Masuda, Shigetaka Yamakawa

Eur. J. Oper. Res., 2001

1998

Optimal repair of degrading computers under asymmetric information and incentive incompatibility.

K. Cheng Hsing, Marshall L. Freimer, William B. Richmond, Ushio Sumita

Comput. Oper. Res., 1998

1995

Stochastic Models for Performance Analysis of Database Recovery Control.

Paulo B. Góes, Ushio Sumita

IEEE Trans. Computers, 1995

1992

Analysis of a new thruway communication system with discrete minimal zones.

Paulo B. Góes, Hironao Kawashima, Ushio Sumita

IEEE Trans. Commun., 1992

Analysis of multivariate Markov modulated Poisson processes.

Ushio Sumita, Yasushi Masuda

Oper. Res. Lett., 1992

Structural properties of optimal tool replacement policy in a machining center.

Qiu-Sheng Liu, Katsuhisa Ohno, Ushio Sumita

Oper. Res. Lett., 1992

1991

Numerical analysis of gracefully degrading fault-tolerant computer systems: Semi-markov and laguerre transform approach.

Yasushi Masuda, Ushio Sumita

Comput. Oper. Res., 1991

Replacement process decomposition for discounted Markov renewal programming.

Paul J. Schweitzer, Ushio Sumita, Katsuhisa Ohno

Ann. Oper. Res., 1991

1989

Analysis of Effective Service Time with Age Dependent Interruptions and Its Application to Optimal Rollback Policy for Database Management.

Ushio Sumita, Naoto Kaio, Paulo B. Góes

Queueing Syst. Theory Appl., 1989

1988

Analysis of Channel and Disk Subsystems in Computer Systems.

Bezalel Gavish, Ushio Sumita

Queueing Syst. Theory Appl., 1988

Analysis of Query Processing in Distributed Database Systems with Fully Replicated Files: A Hierarchical Approach.

Ushio Sumita, Olivia R. Liu Sheng

Perform. Evaluation, 1988

Ent-to-end delay of a database transfer over unreliable communication network.

Ushio Sumita, Peter Kubat

Proceedings of the Computer Communication Technologies for the 90's, Proceedings of the Ninth International Conference on Computer Communication, Tel Aviv, Israel, October 30, 1988

1986

Analysis of Software Availability/Reliability Under the Influence of Hardware Failures.

Ushio Sumita, Yasushi Masuda

IEEE Trans. Software Eng., 1986

1984

The Laguerre Transform and a Family of Functions with Nonnegative Laguerre Coefficients.

Ushio Sumita

Math. Oper. Res., 1984