Publications (4)
Poverty mapping in Mongolia with AI-based Ger detection reveals urban slums persist after the COVID-19 pandemic
Jeasurk Yang, Sumin Lee, Sungwon Park +2
Mongolia is among the countries undergoing rapid urbanization, and its temporary nomadic dwellings-known as Ger-have expanded into urban areas. Ger settlements in cities are increa…
An Ensemble of Simple Convolutional Neural Network Models for MNIST Digit Recognition
Sanghyeon An, Minjun Lee, Sanglee Park +2
We report that a very high accuracy on the MNIST test set can be achieved by using simple convolutional neural network (CNN) models. We use three different models with 3x3, 5x5, an…
Efficient Knowledge Tracing Leveraging Higher-Order Information in Integrated Graphs
Donghee Han, Daehee Kim, Minjun Lee +3
The rise of online learning has led to the development of various knowledge tracing (KT) methods. However, existing methods have overlooked the problem of increasing computational…
Selective resolution of phonon modes in STM-IETS on clean and oxygen-adsorbed Cu(100) surfaces
Minjun Lee, Myungchul Oh, Hoyeon Jeon +5
The observation of surface phonon dispersion using local probes can provide important information related to local structural and thermal properties. In this study, surface phonon…