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Optimal threshold analysis of segmentation methods for identifying target customers
Mizuno, Makoto; Saji, Akira; Sumita, Ushio; Suzuki, Hideo - In: European journal of operational research : EJOR 186 (2008) 1, pp. 358-379
Persistent link: https://www.econbiz.de/10003769534
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A software reliability model with multiple error generation and removal
Sumita, Ushio; Shanthikumar, J. George - 1984
Persistent link: https://www.econbiz.de/10000784897
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A new approach for computing option prices of the Hull-White type with stepwise reversion and volatility finctions
Jin, Hui; Gotoh, Jun-ya; Sumita, Ushio - In: The journal of derivatives : the official publication … 15 (2007) 1, pp. 67-85
Persistent link: https://www.econbiz.de/10003611518
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Credit risk model with contagious default dependencies affected by macro-economic condition
Takada, Hideyuki; Sumita, Ushio - In: European journal of operational research : EJOR 214 (2011) 2, pp. 365-379
Persistent link: https://www.econbiz.de/10009307344
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The impact of mobile access to the internet on information search completion time and customer conversion
Sumita, Ushio; Zuo, Jinshui - In: Electronic commerce research and applications 9 (2010) 1/6, pp. 410-417
Persistent link: https://www.econbiz.de/10008933098
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Enhancement of e-commerce via mobile accesses to the Internet
Sumita, Ushio; Yoshii, Jun - In: Electronic commerce research and applications 9 (2010) 1/6, pp. 217-227
Persistent link: https://www.econbiz.de/10008933144
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Optimal allocation and backup of computer resources under asymmetric information and incentive incompatibility
Cheng, Hsing K.; Freimer, Marshall; Richmond, William B.; … - In: European Journal of Operational Research 91 (1996) 2, pp. 411-426
Persistent link: https://www.econbiz.de/10005257414
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Numerical Exploration of Dynamic Behavior of Ornstein-Uhlenbeck Processes via Ehrenfest Process Approximation
Sumita, Ushio; Gotoh, Jun-ya; Jin, Hui - In: Journal of the Operations Research Society of Japan : JORSJ 49 (2006) 3, pp. 256
Persistent link: https://www.econbiz.de/10007394406
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Stochastic Analysis of Number of Corporations in a Market Derived from Strategic Policies of Individual Corporations for Market Entry and Retreat
Sumita, Ushio; Ise, Tsunehisa; Yonezawa, Koichi - In: Journal of the Operations Research Society of Japan : JORSJ 49 (2006) 1, pp. 1-18
Persistent link: https://www.econbiz.de/10007268689
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On a Generalized M-G-1 Queue with Service Degradation-Enforcement
Igaki, Nobuko; Sumita, Ushio; Kowada, Masashi - In: Journal of the Operations Research Society of Japan : JORSJ 41 (1998) 3, pp. 415-429
Persistent link: https://www.econbiz.de/10006732438