In CourseMapper, building educational knowledge graphs slide-by-slide (bottom-up) gave slightly more accurate concept extraction than whole-document construction, but the advantage was not statistically significant.
Heliyon (2024)
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Top-Down vs. Bottom-Up Approaches for Automatic Educational Knowledge Graph Construction in CourseMapper
In CourseMapper, building educational knowledge graphs slide-by-slide (bottom-up) gave slightly more accurate concept extraction than whole-document construction, but the advantage was not statistically significant.