[{"observed_at":"2026-09-07 16:37:12.749291+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTQxMTU2NDM0","source_instructor_id":"rmp:2920138","instructor_name":"Hantang Qin","course_label":"ISyE512","course_id":"ISYE/ME 512","course_uid":"course_e8a20e535a6c3679f6eda0e2","review_date":"2025-05-05 01:38:07 +0000 UTC","comment":"Awful teaching, doesn't know what he is doing. Never take his subjects","source_url":"https://www.ratemyprofessors.com/professor/2920138","quality_rating":1.0,"difficulty_rating":5.0},{"observed_at":"2026-09-07 16:37:12.749291+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTM5NjQ4Mzg5","source_instructor_id":"rmp:2920138","instructor_name":"Hantang Qin","course_label":"ISyE512","course_id":"ISYE/ME 512","course_uid":"course_e8a20e535a6c3679f6eda0e2","review_date":"2024-07-29 05:53:33 +0000 UTC","comment":"Do not take his course. He does not know what he is talking about","source_url":"https://www.ratemyprofessors.com/professor/2920138","quality_rating":1.0,"difficulty_rating":3.0},{"observed_at":"2026-09-07 16:37:12.749291+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTM4MjU2Nzgx","source_instructor_id":"rmp:2920138","instructor_name":"Hantang Qin","course_label":"ISyE512","course_id":"ISYE/ME 512","course_uid":"course_e8a20e535a6c3679f6eda0e2","review_date":"2023-10-06 02:22:25 +0000 UTC","comment":"Not useful","source_url":"https://www.ratemyprofessors.com/professor/2920138","quality_rating":1.0,"difficulty_rating":3.0},{"observed_at":"2026-09-07 16:37:12.749291+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTM4MTA3NjEy","source_instructor_id":"rmp:2920138","instructor_name":"Hantang Qin","course_label":"ISyE512","course_id":"ISYE/ME 512","course_uid":"course_e8a20e535a6c3679f6eda0e2","review_date":"2023-07-17 17:53:35 +0000 UTC","comment":"Professor Qin may not be acquainted with the course content and exhibits a lack of knowledge in statistics.","source_url":"https://www.ratemyprofessors.com/professor/2920138","quality_rating":1.0,"difficulty_rating":1.0}]