You are looking at Fall 2025.
That term is over, so these are last term's numbers rather than seats you can take.
Dibs has read 527 of the
3,464 courses on its list for this term. Terms
nobody is enrolling in are swept one a night in rotation, so a course with nothing here
may simply not have been reached yet.
Back to Fall 2026
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 2025
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.