Title
Refinement and augmentation for data in micro open learning activities with an evolutionary rule generator
Abstract
Improving both the quantity and quality of existing data are placed at the center of research for adaptive micro open learning. To cover this research gap, our work targets on the current scarcity of both data and rules that represent open learning activities. An evolutionary rule generator is constructed, which consists of an outer loop and an inner loop. The outer loop runs a genetic algorithm (GA) to produce association rules that can be effective in the micro open learning scenario from a small amount of available data sources; while the inner loop optimizes generated candidates by taking into account both rare and negative association rules (NARs). These optimized rules are further applied in refining and augmenting data denoting learners' behaviors in open learning into a low-dimensional, descriptive and interpretable form. The performance of rule discovery and data processing have been empirically evaluated using genuine open learning data.
Year
DOI
Venue
2020
10.1111/bjet.12997
BRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY
DocType
Volume
Issue
Journal
51.0
5.0
ISSN
Citations 
PageRank 
0007-1013
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Geng Sun16110.04
Jiayin Lin212.10
Jun Shen323440.40
Tingru Cui44014.12
Dongming Xu554.94
Mahesh Kayastha600.34