Each course includes multiple resources. The fields are shown in the table below.
| field | description |
|---|---|
| about | Course introduction |
| id | Course ID |
| field | List of the field of the course |
| name | Course name |
| prerequisites | Prerequisite knowledge description |
| resource | List of course Resource |
Each resource is either a video or a set of exercises. The fields are shown in the table below.
| field | description |
|---|---|
| resource_type | Resource type: either video (a video) or exercise (a group of exercises) |
| resource_id | ID of the resource |
| chapter | Chapter number |
| titles | A list of titles, including chapter titles, video titles, etc. There are up to 3 levels of headings. |
If resource_type is video, it is the video ID starting with V_, which is called video_id in this article.
Multiple video_ids correspond to one ccid, and ccid uniquely determines a video. These multiple video_id correspond to the display of the same ccid video at different start times (for example, spring 2018/fall 2020, etc.).
The correspondence between video_id and ccid can be found in relations/video_id-ccid.txt.
The subtitles of the video can be found in entities/video.json through the ccid.
Each set of exercises (exercise) corresponds to multiple questions (problem). The specific correspondence can be found in relations/exercise-problem.json for each exercise
Corresponding problem_id.
The content of the video, its course, chapter and order can be found in course.json.
| field | description |
|---|---|
| ccid | Unique id of the video |
| name | The name of the video |
| start | Array, the start time of each sentence of the video subtitle |
| end | Array, the time when each sentence of the video subtitle ends |
| text | Array, subtitles of each sentence of the video |
The specific content of exercise included in the course. Note that each group of exercises (exercise) corresponds to multiple questions (problem). The fields are shown in the table below.
| field | description |
|---|---|
| id | Problem ID, starting with Pm_ |
| exercise_id | Exercise ID, starting with Ex_ |
| language | The description language of the problem, Chinese/English |
| title | Title of the exercise |
| content | Description of the problem |
| option | Problem option |
| answer | The answer to the question |
| score | The score of the question |
| type | Question options |
| typetext | Question options |
| location | Chapter location of the problem |
| context_id | Array, leaf_id related to the problem |
| field | description |
|---|---|
| id | School ID, starting with S_ |
| name | Chinese name of the school |
| name_en | English name of the school |
| sign | The initials of the school's English name |
| about | Introduction |
| motto | School motto |
| field | description |
|---|---|
| id | Teacher ID, starting with T_ |
| name | Chinese name of the teacher |
| name_en | English name of the teacher |
| about | Teacher profile |
| job_title | job title |
| org_name | affiliation |
The fields of manually marked courses come from 88 fields in the "Catalogue of Disciplines and Specialties for Granting Doctoral Degrees, Master Degrees and Training Postgraduates" issued by the Ministry of Education in 1997. Each course may belong to multiple fields.
The fields are shown in the table below.
| field | description |
|---|---|
| course_id | Course ID |
| course_name | Course name |
| field | Manually labeled field list |
Course's start School. The format is {course ID}\t{school ID}.
Course's start Teacher. The format is {course ID}\t{teacher ID}.
A set of problems contained in exercise. The format is {exercise ID}\t{question ID}.
Video ID and ccid correspondence table. The format is {Video ID}\t{ccid}.