Presentation 2018-03-03
Modeling the temporal change of student proficiency using records in e-learning
Midori Kodama, Takahiro Hata, Ippei Shake,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Estimating student’s proficiency from the records of learning system is the key technology to provide adaptive learning system which enhances efficiency of learning. For the purpose of recommending optimal schedule and efficient coaching, temporal change of student’s proficiency is useful information. In current paper, we built temporal model of student’s proficiency using estimation of daily proficiency by applying item response theory (IRT) and regression analysis. In modeling the temporal student’s proficiency, limited number of daily records have negative impact on estimating daily proficiency. We propose the method which overcomes this problem by excluding days that have lower Fisher information from the temporal model. As a result, temporal proficiency model could predict future student’s performance on the same level with the prediction by existing IRT method using large data including student’s all past data. Our method enables acquiring expectation of elevation of student’s proficiency suggesting the availability to provide optimal learning schedule.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Item response theory / Adaptive learning / Time-series modeling
Paper # ET2017-132
Date of Issue 2018-02-24 (ET)

Conference Information
Committee ET
Conference Date 2018/3/3(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kochi University of Technology (Eikokuji Campus)
Topics (in Japanese) (See Japanese page)
Topics (in English) Standardization and Utilization of e-Textbook/e-Learning, etc.
Chair Yozo Miyadera(Tokyo Gakugei Univ.)
Vice Chair Shoichi Nakamura(Fukushima Univ.)
Secretary Shoichi Nakamura(Tokyo Polytechnic Univ.)
Assistant Hiroki Nakayama(Waseda Univ.) / Megumi Kurayama(National Inst. of Tech., Hakodate College)

Paper Information
Registration To Technical Committee on Educational Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Modeling the temporal change of student proficiency using records in e-learning
Sub Title (in English)
Keyword(1) Item response theory
Keyword(2) Adaptive learning
Keyword(3) Time-series modeling
1st Author's Name Midori Kodama
1st Author's Affiliation NTT Network Innovation Laboratories(NTT)
2nd Author's Name Takahiro Hata
2nd Author's Affiliation NTT Network Innovation Laboratories(NTT)
3rd Author's Name Ippei Shake
3rd Author's Affiliation NTT Network Innovation Laboratories(NTT)
Date 2018-03-03
Paper # ET2017-132
Volume (vol) vol.117
Number (no) ET-469
Page pp.pp.249-252(ET),
#Pages 4
Date of Issue 2018-02-24 (ET)