# Xiaoyang Long — Courses & Reviews | UW–Madison [View on UW Courses](https://uwcourses.com/instructors/XIAOYANG_LONG) ## Dataset ### revision e243353dcb7d79b7247ced91d69443ef4c2a6349 ### repository twangodev/uwcourses ### schema version 6 ### importer version 7 ### projection id 52a78527ff09011d88cb04c7d43867d9fbfec2930bf1dd2ec359ebd2844e0b07 ### observed at 2026-09-07T15:55:43.033547+00:00 ### built at 2026-09-10T19:50:42.743001+00:00 ### courses 8951 ### current instructors 5754 ### limited false ### terms * 1272 * 1264 * 1262 * 1254 * 1252 * 1244 * 1242 * 1234 * 1232 * 1224 * 1222 * 1212 * 1204 * 1202 * 1194 * 1192 * 1184 * 1182 * 1174 * 1172 * 1164 * 1162 * 1154 * 1152 * 1144 * 1142 * 1134 * 1132 * 1124 * 1122 * 1114 * 1112 * 1104 * 1102 * 1094 * 1092 * 1084 * 1082 * 1074 * 1072 ### term 1272 ### departments | subject | count | | --------- | ----- | | AAE | 90 | | ABT | 20 | | ACCTIS | 36 | | ACTSCI | 14 | | AFAERO | 10 | | AFRICAN | 87 | | AFROAMER | 71 | | AGROECOL | 21 | | AMERIND | 53 | | ANAT\&PHY | 7 | | ANATOMY | 2 | | ANESTHES | 8 | | ANSCI | 57 | | ANTHRO | 95 | | ART | 125 | | ARTED | 10 | | ARTHIST | 121 | | ASIALANG | 129 | | ASIAN | 109 | | ASIANAM | 28 | | ASTRON | 38 | | ATMOCN | 69 | | BIOCHEM | 51 | | BIOCORE | 10 | | BIOLOGY | 14 | | BIOMDSCI | 18 | | BME | 66 | | BMI | 41 | | BMOLCHEM | 10 | | BOTANY | 69 | | BSE | 44 | | C\&ESOC | 73 | | CBE | 48 | | CHEM | 101 | | CHICLA | 52 | | CIVENGR | 133 | | CLASSICS | 47 | | CNP | 10 | | CNSRSCI | 50 | | COMARTS | 137 | | COMPBIO | 15 | | COMPLIT | 11 | | COMPSCI | 138 | | COUNPSY | 78 | | CRB | 19 | | CS\&D | 71 | | CSCS | 40 | | CURRIC | 193 | | DANCE | 93 | | DERM | 8 | | DS | 88 | | DYSCI | 35 | | ECE | 155 | | ECON | 145 | | EDPOL | 114 | | EDPSYCH | 97 | | ELPA | 70 | | EMA | 53 | | EMERMED | 17 | | ENGL | 206 | | ENTOM | 40 | | ENVIRST | 148 | | EP | 15 | | EPD | 67 | | ESL | 16 | | F\&WECOL | 60 | | FAMMED | 22 | | FINANCE | 50 | | FOLKLORE | 40 | | FOODSCI | 43 | | FRENCH | 63 | | GEN\&WS | 145 | | GENBUS | 72 | | GENECSLR | 17 | | GENETICS | 60 | | GEOG | 113 | | GEOSCI | 83 | | GERMAN | 82 | | GLE | 48 | | GNS | 38 | | GREEK | 27 | | HDFS | 41 | | HEBR-BIB | 13 | | HEBR-MOD | 10 | | HISTORY | 233 | | HISTSCI | 56 | | HONCOL | 13 | | ILS | 43 | | INFOSYS | 9 | | INTEGART | 7 | | INTEGSCI | 22 | | INTER-AG | 18 | | INTER-HE | 11 | | INTER-LS | 22 | | INTEREGR | 16 | | INTLBUS | 21 | | INTLST | 50 | | ISYE | 83 | | ITALIAN | 53 | | JEWISH | 56 | | JOURN | 88 | | KINES | 128 | | LACIS | 26 | | LANDARC | 61 | | LATIN | 24 | | LAW | 120 | | LEGALST | 48 | | LINGUIS | 35 | | LIS | 89 | | LITTRANS | 78 | | LSC | 52 | | M\&ENVTOX | 7 | | MARKETNG | 62 | | MATH | 153 | | MDGENET | 8 | | ME | 130 | | MEDHIST | 43 | | MEDICINE | 60 | | MEDIEVAL | 32 | | MEDPHYS | 39 | | MEDSC-M | 29 | | MEDSC-V | 41 | | MHR | 68 | | MICROBIO | 45 | | MILSCI | 16 | | MM\&I | 22 | | MOLBIOL | 6 | | MS\&E | 59 | | MUSIC | 165 | | MUSPERF | 126 | | NAVSCI | 20 | | NE | 44 | | NEURODPT | 11 | | NEUROL | 7 | | NEURSURG | 4 | | NTP | 11 | | NURSING | 111 | | NUTRSCI | 65 | | OBS\&GYN | 18 | | OCCTHER | 39 | | ONCOLOGY | 14 | | OPHTHALM | 5 | | OTM | 43 | | PATH | 34 | | PATH-BIO | 29 | | PEDIAT | 26 | | PHARMACY | 31 | | PHILOS | 77 | | PHMCOL-M | 11 | | PHMPRAC | 45 | | PHMSCI | 60 | | PHYASST | 37 | | PHYSICS | 88 | | PHYSIOL | 3 | | PHYTHER | 37 | | PLANTSCI | 52 | | PLPATH | 35 | | POLISCI | 192 | | POPHLTH | 58 | | PORTUG | 33 | | PSYCH | 101 | | PSYCHIAT | 22 | | PUBAFFR | 54 | | PUBLHLTH | 23 | | RADIOL | 11 | | REALEST | 41 | | RELIGST | 90 | | RHABMED | 9 | | RMI | 24 | | RP\&SE | 102 | | S\&APHM | 17 | | SCANDST | 73 | | SLAVIC | 89 | | SOC | 149 | | SOCWORK | 87 | | SOILSCI | 46 | | SPANISH | 83 | | SRMED | 21 | | STAT | 94 | | STDYABRD | 52 | | STS | 8 | | SURGERY | 25 | | SURGSCI | 33 | | THEATRE | 91 | | URBRPL | 60 | | UROLOGY | 5 | | ZOOLOGY | 89 | ## instructor ### instructor uid instructor\_1c29217eef7c16bcfce7a967 ### source enrollment ### source instructor id xlong8 ### identity basis netid ### identity status source\_identified ### name Xiaoyang Long ### email XIAOYANG.LONG\@WISC.EDU ### first observed at 2026-09-07 15:55:43.033547+00:00 ### last observed at 2026-09-07 15:55:43.033547+00:00 ### ratings #### review count 9 #### quality 3.89 #### difficulty 2.67 #### quality count 9 #### difficulty count 9 #### profile id rmp:2490777 #### source url #### match basis exact\_name #### observed at 2026-09-07 15:58:32.924769+00:00 #### courses ##### course aa7c4c79e460029847daaad2 ###### review count 8 ###### quality 4 ###### difficulty 2.62 ###### quality count 8 ###### difficulty count 8 ##### course 21f40c328bd99550bd9f745f ###### review count 1 ###### quality 3 ###### difficulty 3 ###### quality count 1 ###### difficulty count 1 #### bayesian quality 3.7311626093424795 #### prior mean 3.6596857835465957 #### prior weight 20 ### current true ### courses | course\_uid | course\_id | title | credits\_min | credits\_max | gpa | | -------------------------------- | ---------------- | ----------------------------------------------------------------------- | ------------ | ------------ | ----- | | course\_21f40c328bd99550bd9f745f | MARKETNG/OTM 423 | PROCUREMENT AND SUPPLY MANAGEMENT | 3 | 3 | 3.593 | | course\_362daf0b1580016b049544ca | OTM 990 | OPERATIONS AND INFORMATION MANAGEMENT-INDEPENDENT RESEARCH PH.D. THESIS | 1 | 12 | | ### revision e243353dcb7d79b7247ced91d69443ef4c2a6349 ### instructor url /instructors/XIAOYANG\_LONG ## history | term | course\_uid | course\_id | title | | ---- | -------------------------------- | ---------------- | ----------------------------------------------------------------------- | | 1272 | course\_21f40c328bd99550bd9f745f | MARKETNG/OTM 423 | PROCUREMENT AND SUPPLY MANAGEMENT | | 1272 | course\_362daf0b1580016b049544ca | OTM 990 | OPERATIONS AND INFORMATION MANAGEMENT-INDEPENDENT RESEARCH PH.D. THESIS | ## timeline | term | courses | | ---- | ------- | | 1272 | 2 | ## term 1272 ## courses ```json [ { "course_uid": "course_21f40c328bd99550bd9f745f", "course_id": "MARKETNG/OTM 423", "title": "PROCUREMENT AND SUPPLY MANAGEMENT", "credits_min": 3, "credits_max": 3, "gpa": 3.593, "badges": [ { "id": "lecture-size", "label": "Small lectures", "tone": "neutral", "evidence": "Fall 2026: median 15 enrolled students across 2 recorded lecture sections. Small means 30 or fewer; large means 100 or more. Enrollment at scan time, not capacity or typical historical attendance.", "sources": [ { "label": "Sections and enrollment", "href": "/courses/MARKETNG_OTM_423#schedule" } ] } ], "description": "Covers procurement and supply management, including purchasing, cost management, negotiation, sourcing, supplier management, and outsourcing.", "discovery": { "term": "1272", "offered": true, "history": { "counts": [ 133, 143, 53, 3, 3, 0, 0 ], "count": 335, "gpa": 3.5970149253731343, "topShare": 82.38805970149254, "firstTerm": "1224", "lastTerm": "1264" }, "instructors": [ { "course_uid": "course_21f40c328bd99550bd9f745f", "uid": "instructor_1c29217eef7c16bcfce7a967", "name": "Xiaoyang Long", "quality": 3.7311626093424795, "quality_count": 9, "instructor_url": "/instructors/XIAOYANG_LONG" } ], "instructorHistory": { "counts": [ 0, 0, 0, 0, 0, 0, 0 ], "count": 0, "gpa": null, "topShare": null }, "courseComparison": { "counts": [ 0, 0, 0, 0, 0, 0, 0 ], "count": 0, "gpa": null, "topShare": null }, "claim": { "citations": [ { "instructor_name": "Xiaoyang Long", "review_date": "2023-05-09 14:05:27 +0000 UTC", "review_id": "c513a236745910097a0cfb1c", "run_id": "20260907T155543-ce3781c4", "source_instructor_id": "rmp:2490777", "source_review_id": "UmF0aW5nLTM3ODY5NzQ0", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "type": "review" } ], "text": "Xiaoyang Long delivers lectures that some find dry, though the course material is manageable for attentive students. A primary concern is her slow grading turnaround, which can delay feedback on assignments." }, "reviewFiles": [ "/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/reviews/course_21f40c328bd99550bd9f745f-0.json" ] } }, { "course_uid": "course_362daf0b1580016b049544ca", "course_id": "OTM 990", "title": "OPERATIONS AND INFORMATION MANAGEMENT-INDEPENDENT RESEARCH PH.D. THESIS", "credits_min": 1, "credits_max": 12, "gpa": null, "badges": [], "description": "OTM 990 is an independent research course for Ph.D. students to complete their dissertation requirement.", "discovery": { "term": "1272", "offered": true, "history": { "counts": [ 0, 0, 0, 0, 0, 0, 0 ], "count": 0, "gpa": null, "topShare": null }, "instructors": [ { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_5a42faf06d211f203d2baebc", "name": "Sung Kim", "quality": 3.787303614716622, "quality_count": 12, "instructor_url": "/instructors/SUNG_KIM" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_5682e488b09ad6c9a93ccc54", "name": "Qinglai He", "quality": 3.781532530496905, "quality_count": 2, "instructor_url": "/instructors/QINGLAI_HE" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_2c6caf48eb75772abbb9c381", "name": "Hessam Bavafa", "quality": 3.753202409811081, "quality_count": 28, "instructor_url": "/instructors/HESSAM_BAVAFA" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_1c29217eef7c16bcfce7a967", "name": "Xiaoyang Long", "quality": 3.7311626093424795, "quality_count": 9, "instructor_url": "/instructors/XIAOYANG_LONG" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_d2ecbef42c6a70e7d5e5199c", "name": "Jordan Tong", "quality": 3.715415903798487, "quality_count": 25, "instructor_url": "/instructors/JORDAN_TONG" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_8367559decb75b3a4f8d1972", "name": "Bob Batt", "quality": 3.4931936815762645, "quality_count": 25, "instructor_url": "/instructors/BOB_BATT" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_b6af991c7ab9eb06b6498c58", "name": "Allen Li", "quality": null, "quality_count": null, "instructor_url": "/instructors/ALLEN_LI" }, { "course_uid": "course_362daf0b1580016b049544ca", "uid": "instructor_2d69196a8807e1bdda68b80b", "name": "Yash Babar", "quality": null, "quality_count": null, "instructor_url": "/instructors/YASH_BABAR" } ], "instructorHistory": { "counts": [ 0, 0, 0, 0, 0, 0, 0 ], "count": 0, "gpa": null, "topShare": null }, "courseComparison": { "counts": [ 0, 0, 0, 0, 0, 0, 0 ], "count": 0, "gpa": null, "topShare": null }, "claim": null, "reviewFiles": [] } } ] ``` ## reviews ### items ```json [ { "observed_at": "2026-09-07 15:58:32.924769+00:00", "run_id": "20260907T155543-ce3781c4", "source_review_id": "UmF0aW5nLTM3OTg3MzE1", "source_instructor_id": "rmp:2490777", "instructor_name": "Xiaoyang Long", "course_label": "OTM300", "course_id": "OTM 300", "course_uid": "course_aa7c4c79e460029847daaad2", "review_date": "2023-05-25 03:50:56 +0000 UTC", "comment": "She teaches the second half of the class and is better than Mcclurg. I never attended lectures and understood everything from her annotated slides. Her group project was much more interesting than the first and her excel case was much easier. Quiz and final aren't hard if you attend lecture/study the slides. ", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "quality_rating": 4, "difficulty_rating": 3 }, { "observed_at": "2026-09-07 15:58:32.924769+00:00", "run_id": "20260907T155543-ce3781c4", "source_review_id": "UmF0aW5nLTM3ODY5NzQ0", "source_instructor_id": "rmp:2490777", "instructor_name": "Xiaoyang Long", "course_label": "OTM423", "course_id": "MARKETNG/OTM 423", "course_uid": "course_21f40c328bd99550bd9f745f", "review_date": "2023-05-09 14:05:27 +0000 UTC", "comment": "Lecture is a little dry, but overall not bad. She takes forever to grade things, but if you pay attention in lecture they aren't terribly difficult. ", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "quality_rating": 3, "difficulty_rating": 3 }, { "observed_at": "2026-09-07 15:58:32.924769+00:00", "run_id": "20260907T155543-ce3781c4", "source_review_id": "UmF0aW5nLTM2NDI1MzYz", "source_instructor_id": "rmp:2490777", "instructor_name": "Xiaoyang Long", "course_label": "OTM300", "course_id": "OTM 300", "course_uid": "course_aa7c4c79e460029847daaad2", "review_date": "2022-05-31 14:25:23 +0000 UTC", "comment": "Prof Long was always respectful of lecture time and never went over. She was willing to answer student questions and provided many practice problems to prepare for the straightforward quizzes and exams. Exams were easier than most of the practice problems. Good curve and no need to read the textbook for her half of the class. Quick to answer email.", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "quality_rating": 5, "difficulty_rating": 2 }, { "observed_at": "2026-09-07 15:58:32.924769+00:00", "run_id": "20260907T155543-ce3781c4", "source_review_id": "UmF0aW5nLTM2MzU0MDMz", "source_instructor_id": "rmp:2490777", "instructor_name": "Xiaoyang Long", "course_label": "OTM300", "course_id": "OTM 300", "course_uid": "course_aa7c4c79e460029847daaad2", "review_date": "2022-05-17 00:19:50 +0000 UTC", "comment": "She teaches the second half of this class and it is far easier than the first half. Straightforward lectures, tests came right from lectures and practice problems. Not the most interesting lecturer, but professor Long certainly cares. Don't need to read textbook.", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "quality_rating": 3, "difficulty_rating": 2 }, { "observed_at": "2026-09-07 15:58:32.924769+00:00", "run_id": "20260907T155543-ce3781c4", "source_review_id": "UmF0aW5nLTM0ODA4MDgw", "source_instructor_id": "rmp:2490777", "instructor_name": "Xiaoyang Long", "course_label": "OTM300", "course_id": "OTM 300", "course_uid": "course_aa7c4c79e460029847daaad2", "review_date": "2021-05-17 14:58:39 +0000 UTC", "comment": "Long teaches part 2 of OTM and material is easier to understand. Content laid out in a simple way and material explained well. Quizzes similar to practice problems in lecture, and she allows a notecard on the final. She is very nice and is accessible outside of class. Group simulation isn't fun, but not too difficult. Would recommend", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "quality_rating": 4, "difficulty_rating": 3 }, { "observed_at": "2026-09-07 15:58:32.924769+00:00", "run_id": "20260907T155543-ce3781c4", "source_review_id": "UmF0aW5nLTM0NzYxMzQw", "source_instructor_id": "rmp:2490777", "instructor_name": "Xiaoyang Long", "course_label": "OTM300", "course_id": "OTM 300", "course_uid": "course_aa7c4c79e460029847daaad2", "review_date": "2021-05-11 05:31:53 +0000 UTC", "comment": "Teaches 2nd half of class and is far better than McClurg. Don't need to read the book as she covers all what you need to know in lectures. The math problems are easy to do. The hard part of the class is not necessarily being able to do questions but rather deeply understanding the underlying concepts. Her final is fairly easy if you paid attention.", "source_url": "https://www.ratemyprofessors.com/professor/2490777", "quality_rating": 4, "difficulty_rating": 3 } ] ``` ### total 9 ### page 1 ### courses | course\_uid | course\_id | | -------------------------------- | ---------------- | | course\_21f40c328bd99550bd9f745f | MARKETNG/OTM 423 | | course\_aa7c4c79e460029847daaad2 | OTM 300 | ### matched true ## social Image true