| field | description |
|---|---|
| id | User ID, starting with U_ |
| name | Name |
| gender | gender |
| school | school |
| year_of_birth | Birth year and month |
| course_order | Array, selected courses |
| enroll_time | Array, course selection time corresponds to course_order |
Comment of course resource. Each piece of data is a comment of a user to a resource. The fields are shown in the table below.
| field | description |
|---|---|
| id | Comment ID, starting with Cm_ |
| user_id | ID of the user who made the comment, starting with U_ |
| text | Comment content |
| create_time | Comment time |
| field | description |
|---|---|
| id | Reply ID, starting with Rp_ |
| user_id | User ID, starting with U_ |
| text | Reply content |
| create_time | Reply time |
Each resource can have multiple comments, each comment is a user’s comment on the resource, which can be found in relations/resource-comment.json. video_id or Ex_ at the beginning of V_Theexercise_idat the beginning finds thecomment_idof the corresponding comment. The specific content of the comment can be found inentities/comment.jsonaccording to thecomment_id`.
Course related user comments. The format is {course ID}\t{review ID}.
Comment of User. The format is {User ID}\t{Comment ID}.
User’s Comment Reply. The format is {User ID}\t{Reply ID}.
Concept related comment reply. The format is {concept ID}\t{reply ID}.
A link table of comments sent by users and comments back.
| field | description |
|---|---|
| log_id | ID of the user's question record, combined with a unique key of user_id and problem_id |
| user_id | User ID, starting with U_ |
| problem_id | Problem ID, starting with Pm_ |
| is_correct | Is the question correct |
| attempts | Number of attempted questions |
| score | score |
| submit_time | Question time |
| field | description |
|---|---|
| user_id | User ID, starting with U_ |
| seq | Array, the sequence of the user watching the video, each object in the array is the time sequence of the user watching a certain video, including the time of watching the video, the start and end time of the video, and the speed of watching the video, etc. |
| field | description |
|---|---|
| user_id | User ID, starting with U_ |
| question_type | User question category |
| question | Questions asked by users |