collaborators

6 papers

cs.IR2026

Filling the Gaps: Selective Knowledge Augmentation for LLM Recommenders

Jaehyun Lee, Sanghwan Jang, SeongKu Kang +1

Large language models (LLMs) have recently emerged as powerful training-free recommenders. However, their knowledge of individual items is inevitably uneven due to imbalanced infor…

cs.LG2026

Dynamic Multi-period Experts for Online Time Series Forecasting

Seungha Hong, Sukang Chae, Suyeon Kim +2

Online Time Series Forecasting (OTSF) requires models to continuously adapt to concept drift. However, existing methods often treat concept drift as a monolithic phenomenon. To add…

cs.LG2026

Harmonic Dataset Distillation for Time Series Forecasting

Seungha Hong, Sanghwan Jang, Wonbin Kweon +3

Time Series forecasting (TSF) in the modern era faces significant computational and storage cost challenges due to the massive scale of real-world data. Dataset Distillation (DD),…

cs.LG2025

BPL: Bias-adaptive Preference Distillation Learning for Recommender System

SeongKu Kang, Jianxun Lian, Dongha Lee +6

Recommender systems suffer from biases that cause the collected feedback to incompletely reveal user preference. While debiasing learning has been extensively studied, they mostly…

cs.CL2025

STEPER: Step-wise Knowledge Distillation for Enhancing Reasoning Ability in Multi-Step Retrieval-Augmented Language Models

Kyumin Lee, Minjin Jeon, Sanghwan Jang +1

Answering complex real-world questions requires step-by-step retrieval and integration of relevant information to generate well-grounded responses. However, existing knowledge dist…

cs.IR2025

Uncertainty Quantification and Decomposition for LLM-based Recommendation

Wonbin Kweon, Sanghwan Jang, SeongKu Kang +1

Despite the widespread adoption of large language models (LLMs) for recommendation, we demonstrate that LLMs often exhibit uncertainty in their recommendations. To ensure the trust…