1Cademy - What Should I Learn First: Introducing LectureBank for NLP Education and Prerequisite Chain Learning: Prerequisite annotation

Concept

What Should I Learn First: Introducing LectureBank for NLP Education and Prerequisite Chain Learning: Prerequisite annotation

The authors chose binary annotation that only have answers of yes and no, implying that even if the distance between two concepts in a concept graph is long, as long as "one concept is typically learned before the other" and "is helpful in building up knowledge" for learning the other, the author considered that a prerequisite relation exists.
Based on the concept labels provided by TutorialBank (Fabbri et al. 2018), the annotators constructed a directed concept graph with 208 vertices (concept) and 921 edges (A --> B means A is a prerequisite of B).
In the concept graph, cycles (a pair of very closely related concepts) and independent vertices (no prerequisite relations with any other concepts) exists.
In-degree: the number of the concept's prerequisite vertices; high in-degree means the concept is an advanced concept.
Out-degree: the number of vertices that the concept is prerequisite to; high out-degree means the concept is a fundamental concept.
The longest path consists of 14 concepts.

0

1

Updated 2020-08-04

Contributors are:

Who are from:

References