Hiroaki Ogata

A Multi-model SVR Approach to Estimating the CEFR Proficiency Level of Grammar Item Features

2017

Analysis of publicly available language learning corpora can be useful for extracting characteristic features of learners from different proficiency levels. This can then be used to support language learning research and the creation of educational …

Language Learning Tool for Refugees: Identifying the Language Learning Needs of Syrian Refugees Through Participatory Design

2019 · Languages

A large number of refugees need to learn a new language in order to transition to, or settle in, a new country. Most refugees have access to smartphones with which they can access mobile language …

Emergency remote teaching in low-resource contexts: How did teachers adapt?

2020 · Kyoto University Research Information Repository (Kyoto University)

28th International Conference on Computers in Education, 23-27 November 2020, Web conference.

A mixture transition distribution modeling for higher-order circular Markov processes

2023 · arXiv (Cornell University)

The stationary higher-order Markov process for circular data is considered. We employ the mixture transition distribution (MTD) model to express the transition density of the process on the circle. The underlying circular transition distribution is …

Can We Ensure Accuracy and Explainability for a Math Recommender System?

2023 · International Conference on Computers in Education

Providing explanations in educational recommender systems are supposed to increase students’ awareness of the recommendations, trust toward the system, motivation to adopt the recommendations. With the expectation to have a higher prediction accuracy, more and …