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@Optim-Lab

Optim.Lab.

Optimization and Machine Learning Lab @ University of Seoul

Optimization & Machine Learning Laboratory

Department of Statistics and Data Science, University of Seoul


❓ About Us

Optim.Lab. at the Department of Statistics and Data Science, University of Seoul, studies the fundamental principles of machine learning and develops optimization methodologies for learning models.

Our research aims to understand how learning algorithms operate, analyze their theoretical properties, and design effective optimization strategies for model training and generalization.

We primarily work with:

  • 🌐 Network data
  • 🏆 Ranking data
  • 📈 Stock market and financial time-series data

Based on these domains, we develop:

  • Predictive models
  • Generative models

📚 Publications

You can explore our research publications via Google Scholar:

👉 Optim.Lab Google Scholar


Popular repositories Loading

  1. CryptoVAE CryptoVAE Public

    This repository is the official implementation of Cryptocurrency Price Forecasting using Variational AutoEncoder with Versatile Quantile Modeling (CIKM, 2024).

    Python 9

  2. sif-models sif-models Public

    Repository for models of sea ice concentration forecasting.

    Python 5 2

  3. U-VAE U-VAE Public

    This repository is the official implementation of `Impute Missing Entries with Uncertainty' (AAAI, 2026).

    Python 5

  4. CHEM CHEM Public

    This repository is the official implementation of CHEM: Causally and Hierarchically Explaining Molecules (CIKM, 2025).

    Python 2 2

  5. DrIM DrIM Public

    This repository is the official implementation of 'DrIM: Context-Driven Nearest Neighbor Imputation using Language Representation' with PyTorch (PAKDD 2026).

    Python 2

  6. QPP-MLC QPP-MLC Public

    This repository is the official implementation of Generalizing Query Performance Prediction under Retriever and Concept Shifts via Data-driven Correction (CIKM, 2025).

    Python 1

Repositories

Showing 10 of 12 repositories
  • SPT Public

    This is the official implementation of the paper "Generating High-Diversity Synthetic Tabular Data via a Less-Constrained Prior" (IJACI-ECAI 2026).

    Optim-Lab/SPT's past year of commit activity
    Python 0 MIT 1 0 0 Updated Sep 22, 2026
  • DrIM Public

    This repository is the official implementation of 'DrIM: Context-Driven Nearest Neighbor Imputation using Language Representation' with PyTorch (PAKDD 2026).

    Optim-Lab/DrIM's past year of commit activity
    Python 2 MIT 0 0 0 Updated Sep 21, 2026
  • U-VAE Public

    This repository is the official implementation of `Impute Missing Entries with Uncertainty' (AAAI, 2026).

    Optim-Lab/U-VAE's past year of commit activity
    Python 5 MIT 0 0 0 Updated Sep 21, 2026
  • CAMIE Public

    This repository is the official implementation of the paper "Context-Aware Subgraph Explanations for Multi-Task GNNs" (CIKM, 2026).

    Optim-Lab/CAMIE's past year of commit activity
    Python 0 MIT 0 0 0 Updated Sep 21, 2026
  • QPP-MLC Public

    This repository is the official implementation of Generalizing Query Performance Prediction under Retriever and Concept Shifts via Data-driven Correction (CIKM, 2025).

    Optim-Lab/QPP-MLC's past year of commit activity
    Python 1 0 0 0 Updated Sep 21, 2026
  • CHEM Public

    This repository is the official implementation of CHEM: Causally and Hierarchically Explaining Molecules (CIKM, 2025).

    Optim-Lab/CHEM's past year of commit activity
    Python 2 MIT 2 0 0 Updated Apr 4, 2026
  • exel_gnn Public

    This repository provides the official implementation of our PAKDD 2026 paper: Estimating Subgraph Importance with Structural Prior Domain Knowledge (Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), 2026).

    Optim-Lab/exel_gnn's past year of commit activity
    Python 0 0 0 0 Updated Apr 3, 2026
  • .github Public
    Optim-Lab/.github's past year of commit activity
    0 0 0 0 Updated Feb 27, 2026
  • CryptoVAE Public

    This repository is the official implementation of Cryptocurrency Price Forecasting using Variational AutoEncoder with Versatile Quantile Modeling (CIKM, 2024).

    Optim-Lab/CryptoVAE's past year of commit activity
    Python 9 MIT 0 0 0 Updated Jul 8, 2025
  • ChatBot Public
    Optim-Lab/ChatBot's past year of commit activity
    Python 0 MIT 0 0 0 Updated Nov 15, 2024

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