Effect of Learning Support System for Feature Words on Group Learning

摘要

This paper proposes a system to support learning from Okapi BM25 feature words. When a learner does not understand difficult feature words, he/she cannot reach consensus in discussions. Automatic generation of feature words for teaching could greatly help teachers create instruction for an intelligent tutoring system for group learning. When students have inadequate knowledge, teachers need to intervene to teach them. However, a teacher cannot intervene with large groups. Therefore, the researchers/we prototyped a system to support learners rather than teachers in group learning. We experiment to analyze the effect of the prototype system for creating feature words. This experiment's compared learners who used the system (group A) with those who did not (group B). The learners discussed the job placement problem. We found that the Group A had a higher score than Group B. There was a significant difference between groups. Results show that the system correctly determines feature words and learning effects on students were confirmed in group learning.