OSTROVSKY, RAFAIL
508 letter grades across 6 courses
- Average awarded
- 3.62
- weighted by students, not by course
- Students graded
- 508
- Courses
- 6
Teaching in Fall 2026
- COM SCI M282A Cryptography Lec 1 Open
- COM SCI 298 Research Seminar: Computer Science Sem 31 Open
- COM SCI 599 Research for and Preparation of PhD Dissertation Tut 33 Open
- COM SCI 596 Directed Individual or Tutorial Studies Tut 33 Open
- COM SCI 597C Preparation for PhD Oral Qualifying Examination Tut 34 Open
- COM SCI 597A Preparation for MS Comprehensive Examination Tut 34 Open
- COM SCI 598 Research for and Preparation of MS Thesis Tut 34 Open
- COM SCI 597B Preparation for PhD Preliminary Examination Tut 34 Open
Grade record by course
| Course | Predicted | Raw | n | Terms | A range |
|---|---|---|---|---|---|
| COM SCI 180 Introduction to Algorithms and Complexity | 3.77 | 3.83 | 195 | 1 | 86% |
| COM SCI 183 Introduction to Cryptography | 3.34 | 3.34 | 148 | 3 | 48% |
| COM SCI M282A Cryptography | 3.50 | 3.51 | 99 | 4 | 55% |
| COM SCI M282B Cryptographic Protocols | 3.91 | 4.00 | 23 | 2 | 100% |
| MATH M209A Cryptography | 3.48 | 3.51 | 22 | 2 | 64% |
| COM SCI 289A Current Topics in Computer Theory: Cutting-Edge Papers in Complexity-Theoretic Cryptography | 3.93 | 4.00 | 21 | 1 | 100% |
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so a course taught once to twelve students sits near the course mean rather than at whatever those twelve happened to get.