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| We passed the first round 2020 of the Korean artificial intelligence Grand Challenge and won third place on the voice recognition track in the second round 2021. | https://www.kw.ac.kr/ko/life/newsletter.jsp?BoardMode=view&DUID=34954 |
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| D. H. Kim and Y.-S. Choi, "Adaptive Semi-Supervised Graph Contrastive Representation Learning for Robust Emotion Recognition Using Electroencephalogram", Knowledge-based Systems, vol. 339, no. 22, p. 115638, April 2026 (IF: 7.6, JCR: 12.5%). | https://doi.org/10.1016/j.knosys.2026.115638 |
| S. Lee and Y.-S. Choi, "Multimodal Emotion Recognition with High-Level Feature Fusion of Audio and Text via Cross-Attention", Multimedia Tools and Applications, vol. 85, issue 2, Feb. 2026 (IF: 3.0, JCR: 27.7%). | https://doi.org/10.1007/s11042-026-21298-3 |
| D. H. Kim and Y.-S. Choi, "Semi-supervised graph contrastive learning for emotion recognition based on electroencephalogram signals," Engineering Applications of Artificial Intelligence, vol. 161, part A, p. 111969, Dec. 2025 (IF: 8.0, JCR: 2.5%). | https://www.sciencedirect.com/science/article/pii/S0952197625019773 |
| M. S. Lee, D. H. Kim, and Y.-S. Choi, "Enhancing EEG-based Emotion Recognition Using Sparse Dynamic Graph CNN with ℓ2,1 -norm", IEEE Sensors Journal, vol. 25, no. 22, Nov 2025 (IF: 4.5, JCR: 19.6%). | https://doi.org/10.1007/s13534-025-00472-w |
| Y.-H. Jeong and Y.-S. Choi, "Diffusion-Phys: noise-robust heart rate estimation from facial videos via diffusion models," Biomedical Engineering Letters, p. 1-11, Apr. 2025 (IF: 2.8, JCR: 52.8%). | https://link.springer.com/article/10.1007/s13534-025-00472-w |
| J.-H. Kim and Y.-S. Choi, "Lightweight Pre-Trained Korean Language Model Based on Knowledge Distillation and Low-Rank Factorization," Entropy, vol. 27, no. 4, p. 379, Apr. 2025 (IF: 2.0, JCR: 45.2%). | https://www.mdpi.com/1099-4300/27/4/379 |
| S. S. Park, Y.-S. Choi, "Spiking neural networks for physiological and speech signals: a review," Biomedical Engineering Letters, p. 1-12, June. 2024 (IF: 2.8, JCR: 52.8%). | https://link.springer.com/article/10.1007/s13534-024-00404-0 |
| D. H. Kim, J.-O. Park, D.-Y. Lee, and Y.-S. Choi, "Multiscale distribution entropy analysis of short epileptic EEG signals, " Mathematical Biosciences and Engineering, vol. 21, no. 4, Apr. 2024 (IF: 2.6, JCR: 42.7%). | https://www.aimspress.com/article/doi/10.3934/mbe.2024245 |
| C.-M. Kim and Y.-S. Choi, "Quantifying Heart Rate Variability Using Multiscale Fuzzy Dispersion Entropy," IEEE Access, vol. 12, p. 31066 - 31077, Feb. 2024 (IF: 3.6, JCR: 35.2%). | https://ieeexplore.ieee.org/document/10445153?source=authoralert |
| S. Oh and Y.-S. Choi, "Detection of Ventricular Fibrillation Using Ensemble Empirical Mode Decomposition of ECG Signals," Electronics, vol. 13, no. 4, p. 695, Feb. 2024 (IF: 2.6, JCR: 47.1%). | https://www.mdpi.com/2079-9292/13/4/695 |
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