[{"observed_at":"2026-09-07 16:45:29.723413+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTE5ODc1NTE4","source_instructor_id":"rmp:857516","instructor_name":"Darek Ceglarek","course_label":"ISYE415","course_id":"ISYE 415","course_uid":"course_a486f495d47a28ece9f8e181","review_date":"2012-03-03 09:32:10 +0000 UTC","comment":"Very enthusiastic and very helpful.  Challenging content of the class. Needs a lot of independent work and preparation","source_url":"https://www.ratemyprofessors.com/professor/857516","quality_rating":5.0,"difficulty_rating":4.0},{"observed_at":"2026-09-07 16:39:00.084523+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTMwMTYwNTA5","source_instructor_id":"rmp:2162645","instructor_name":"Xin Wang","course_label":"ISYE415","course_id":"ISYE 415","course_uid":"course_a486f495d47a28ece9f8e181","review_date":"2018-05-21 11:46:51 +0000 UTC","comment":"Very slow at going through class material. First 2/3 of class was way too easy, and I feel like I learned nothing as a result of the class setup. The last 1/3 of the class was gone through way too quickly, and again I felt like I didnt learn anything as a result. Would do whatever I could to avoid having this professor again.","source_url":"https://www.ratemyprofessors.com/professor/2162645","quality_rating":2.0,"difficulty_rating":2.0}]