Patents

4 granted patents and 5 published applications, grouped by invention, newest first. Back to Publications.

• Electronic Apparatus for Providing Recommendation Information and Operating Method Thereof
  Noseong Park, Yehjin Shin, Jeongwhan Choi, Hyowon Wi
  Published applications: US 2026/0099696 A1 (Apr 2026), KR 10-2026-0050495 (Apr 2026)
  Related publication: An Attentive Inductive Bias for Sequential Recommendation Beyond the Self-Attention (AAAI 2024)
  [US][KR]

• System for Detecting Anomaly and Method Thereof
  Sewon Park, Minjung Kim, Noseong Park, Jinsung Jeon, Jeongwhan Choi, Jaehyeon Park
  Published applications: KR 10-2025-0111866 (Jul 2025)
  Related publication: Possibility for Proactive Anomaly Detection (ICBINB Workshop at ICLR, 2025)
  Joint applicants: Samsung SDS and Yonsei University.
  [KR]

• Spatiotemporal Data Processing Apparatus and Method Based on Graph Neural Controlled Differential Equation
  Noseong Park, Jeongwhan Choi, Jeehyun Hwang, Hwangyong Choi
  Granted: KR 10-2961704 (Apr 2026)
  Published applications: US 2024/0169016 A1 (May 2024)
  Related publication: Graph Neural Controlled Differential Equations for Traffic Forecasting (AAAI 2022)
  [US][KR]

• Apparatus and Method for Recommending Collaborative Filtering Based on Learnable-Time Ordinary Differential Equation
  Noseong Park, Jeongwhan Choi, Jinsung Jeon
  Granted: US 12,626,145 B2 (May 2026), KR 10-2881034 (Oct 2025)
  Published applications: JP 2023-087609 A (Jun 2023)
  Related publication: LT-OCF: Learnable-Time ODE-based Collaborative Filtering (CIKM 2021)
  [JP][US][KR]

• Apparatus and Method for Measuring Difficulty Level of Chinese Character Using Regression Analysis
  Suntae Kim, Jeongwhan Choi, Jiwoo Noh
  Granted: KR 10-2321045 (Oct 2021)
  Related publication: Prediction Techniques for Difficulty Level of Hanja Using Multiple Linear Regression (J. Inst. Internet, Broadcast. Commun., 2019)
  [KR]