Scholarly Index
Ushio Sumita
University of Tsukuba; 2,186 total citations; 165 total publications; best world rank #180
University of Tsukuba
2,186Total citations
165Total publications
23H-index
Published ranking records
| Field | Window | World rank | National rank | Impact score |
|---|---|---|---|---|
| Probability and Risk Models | Lifetime | 180 | JP 3 | 95.00 |
| Advanced Queuing Theory Analysis | Lifetime | 312 | JP 7 | 94.39 |
| Reliability and Maintenance Optimization | Lifetime | 674 | JP 17 | 91.74 |
| Statistical Distribution Estimation and Applications | Lifetime | 728 | JP 14 | 90.62 |
| Customer churn and segmentation | Lifetime | 779 | JP 13 | 59.12 |