[{"observed_at":"2026-09-07 15:58:26.535241+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTI5NTI3NzMx","source_instructor_id":"rmp:2018011","instructor_name":"Xinyu Zhang","course_label":"ECE454","course_id":"ECE 454","course_uid":"course_f5cf8ba190ceb4a3bcb0e773","review_date":"2018-02-01 15:42:34 +0000 UTC","comment":"methodical and professional professor, reasonable grading. Expects his students to maintain high standards and work hard.","source_url":"https://www.ratemyprofessors.com/professor/2018011","quality_rating":4.0,"difficulty_rating":3.0},{"observed_at":"2026-09-07 15:58:26.535241+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTI2MzY0MDEy","source_instructor_id":"rmp:2018011","instructor_name":"Xinyu Zhang","course_label":"ECE454","course_id":"ECE 454","course_uid":"course_f5cf8ba190ceb4a3bcb0e773","review_date":"2016-04-24 03:22:11 +0000 UTC","comment":"Prof. Zhang is very helpful and patient to his student. He knows the material very well and loves to teach. He is very approachable so when you feel like you have a question or you need help in the class, you can always go and talk to him.","source_url":"https://www.ratemyprofessors.com/professor/2018011","quality_rating":5.0,"difficulty_rating":3.0}]