Search Results for author: Youngduck Choi

Found 13 papers, 4 papers with code

Raw Produce Quality Detection with Shifted Window Self-Attention

no code implementations24 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.

Knowledge Transfer by Discriminative Pre-training for Academic Performance Prediction

no code implementations28 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.

Transfer Learning

Consistency and Monotonicity Regularization for Neural Knowledge Tracing

no code implementations3 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.

Data Augmentation Knowledge Tracing

SAINT+: Integrating Temporal Features for EdNet Correctness Prediction

4 code implementations19 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.

Knowledge Tracing

Choose Your Own Question: Encouraging Self-Personalization in Learning Path Construction

no code implementations8 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.

Decision Making

Prescribing Deep Attentive Score Prediction Attracts Improved Student Engagement

no code implementations27 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.

Collaborative Filtering

Deep Attentive Study Session Dropout Prediction in Mobile Learning Environment

no code implementations14 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.

Towards an Appropriate Query, Key, and Value Computation for Knowledge Tracing

5 code implementations14 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.

Collaborative Filtering Knowledge Tracing

Assessment Modeling: Fundamental Pre-training Tasks for Interactive Educational Systems

no code implementations1 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.

EdNet: A Large-Scale Hierarchical Dataset in Education

1 code implementation6 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.

Knowledge Tracing

Creating A Neural Pedagogical Agent by Jointly Learning to Review and Assess

2 code implementations26 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.

Machine Translation TAG

A Spectral Regularizer for Unsupervised Disentanglement

no code implementations4 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.

Disentanglement

Auto-Meta: Automated Gradient Based Meta Learner Search

no code implementations11 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.

BIG-bench Machine Learning Meta-Learning +1

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