[{"observed_at":"2026-09-07 16:41:56.235326+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTQyODkxNzUw","source_instructor_id":"rmp:1727820","instructor_name":"Eftychios Sifakis","course_label":"CS557","course_id":"COMPSCI 557","course_uid":"course_280431e0039b9a9194e1b074","review_date":"2026-04-21 20:34:15 +0000 UTC","comment":"Very knowledgeable and chill. Lectures and projects are interesting; most lectures will be a case study go-through with code. Grading structure is clear and lenient, and he will give out practice exams for review. Highly recommend!","source_url":"https://www.ratemyprofessors.com/professor/1727820","quality_rating":5.0,"difficulty_rating":3.0}]