no code implementations • 24 Dec 2021 • Oh Joon Kwon, Byungsoo Kim, Youngduck Choi
Global food insecurity is expected to worsen in the coming decades with the accelerated rate of climate change and the rapidly increasing population.
no code implementations • 28 Jun 2021 • Byungsoo Kim, Hangyeol Yu, Dongmin Shin, Youngduck Choi
Then, the discriminator takes an interaction sequence where the masked tokens are replaced by the generator's outputs, and is trained to predict the originalities of all tokens in the sequence.
no code implementations • 3 May 2021 • Seewoo Lee, Youngduck Choi, Juneyoung Park, Byungsoo Kim, Jinwoo Shin
Knowledge Tracing (KT), tracking a human's knowledge acquisition, is a central component in online learning and AI in Education.
4 code implementations • 19 Oct 2020 • Dongmin Shin, Yugeun Shim, Hangyeol Yu, Seewoo Lee, Byungsoo Kim, Youngduck Choi
We propose SAINT+, a successor of SAINT which is a Transformer based knowledge tracing model that separately processes exercise information and student response information.
Ranked #1 on Knowledge Tracing on EdNet
no code implementations • 8 May 2020 • Youngduck Choi, Yoonho Na, Youngjik Yoon, Jong-Hun Shin, Chan Bae, Hongseok Suh, Byung-soo Kim, Jaewe Heo
Finally, Rocket provides students with fine-grained information on their learning path, giving them an avenue to assess their own skills and track their learning progress.
no code implementations • 27 Apr 2020 • Youngnam Lee, Byung-soo Kim, Dongmin Shin, JungHoon Kim, Jineon Baek, Jinhwan Lee, Youngduck Choi
To that end, we apply a state-of-the-art deep attentive neural network-based score prediction model to Santa, a multi-platform English ITS with approximately 780K users in South Korea that exclusively focuses on the TOEIC (Test of English for International Communications) standardized examinations.
no code implementations • 14 Feb 2020 • Youngnam Lee, Dongmin Shin, HyunBin Loh, Jaemin Lee, Piljae Chae, Junghyun Cho, Seoyon Park, Jinhwan Lee, Jineon Baek, Byung-soo Kim, Youngduck Choi
First, we define the concept of the study session, study session dropout and study session dropout prediction task in a mobile learning environment.
5 code implementations • 14 Feb 2020 • Youngduck Choi, Youngnam Lee, Junghyun Cho, Jineon Baek, Byung-soo Kim, Yeongmin Cha, Dongmin Shin, Chan Bae, Jaewe Heo
To the best of our knowledge, this is the first work to suggest an encoder-decoder model for knowledge tracing that applies deep self-attentive layers to exercises and responses separately.
Ranked #2 on Knowledge Tracing on EdNet
no code implementations • 1 Jan 2020 • Youngduck Choi, Youngnam Lee, Junghyun Cho, Jineon Baek, Dongmin Shin, Hangyeol Yu, Yugeun Shim, Seewoo Lee, JongHun Shin, Chan Bae, Byungsoo Kim, Jaewe Heo
However, such methods fail to utilize the full range of student interaction data available and do not model student learning behavior.
1 code implementation • 6 Dec 2019 • Youngduck Choi, Youngnam Lee, Dongmin Shin, Junghyun Cho, Seoyon Park, Seewoo Lee, Jineon Baek, Chan Bae, Byung-soo Kim, Jaewe Heo
With advances in Artificial Intelligence in Education (AIEd) and the ever-growing scale of Interactive Educational Systems (IESs), data-driven approach has become a common recipe for various tasks such as knowledge tracing and learning path recommendation.
2 code implementations • 26 Jun 2019 • Youngnam Lee, Youngduck Choi, Junghyun Cho, Alexander R. Fabbri, HyunBin Loh, Chanyou Hwang, Yongku Lee, Sang-Wook Kim, Dragomir Radev
Our model outperforms existing approaches over several metrics in predicting user response correctness, notably out-performing other methods on new users without large question-response histories.
no code implementations • 4 Dec 2018 • Aditya Ramesh, Youngduck Choi, Yann Lecun
A generative model with a disentangled representation allows for independent control over different aspects of the output.
no code implementations • 11 Jun 2018 • Jaehong Kim, Sangyeul Lee, Sungwan Kim, Moonsu Cha, Jung Kwon Lee, Youngduck Choi, Yongseok Choi, Dong-Yeon Cho, Jiwon Kim
Fully automating machine learning pipelines is one of the key challenges of current artificial intelligence research, since practical machine learning often requires costly and time-consuming human-powered processes such as model design, algorithm development, and hyperparameter tuning.