activity
20242026
most citedUncertainty Quantification and Decomposition for LLM-based Recommendation

5 citations · 9 across the 21 of their papers we have counts for

collaborators

22 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.IR2025

Personalized Federated Recommendation With Knowledge Guidance

Jaehyung Lim, Wonbin Kweon, Woojoo Kim +3

Federated Recommendation (FedRec) has emerged as a key paradigm for building privacy-preserving recommender systems. However, existing FedRec models face a critical dilemma: memory…

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

PairSem: LLM-Guided Pairwise Semantic Matching for Scientific Document Retrieval

Wonbin Kweon, Runchu Tian, SeongKu Kang +4

Scientific document retrieval is a critical task for enabling knowledge discovery and supporting research across diverse domains. However, existing dense retrieval methods often st…

cs.CL2025

Topic Coverage-based Demonstration Retrieval for In-Context Learning

Wonbin Kweon, SeongKu Kang, Runchu Tian +3

The effectiveness of in-context learning relies heavily on selecting demonstrations that provide all the necessary information for a given test input. To achieve this, it is crucia…

cs.CV2025

Q-Align: Alleviating Attention Leakage in Zero-Shot Appearance Transfer via Query-Query Alignment

Namu Kim, Wonbin Kweon, Minsoo Kim +1

We observe that zero-shot appearance transfer with large-scale image generation models faces a significant challenge: Attention Leakage. This challenge arises when the semantic map…

cs.LG2025

Federated Continual Recommendation

Jaehyung Lim, Wonbin Kweon, Woojoo Kim +4

The increasing emphasis on privacy in recommendation systems has led to the adoption of Federated Learning (FL) as a privacy-preserving solution, enabling collaborative training wi…

cs.CL2025

From What to Respond to When to Respond: Timely Response Generation for Open-domain Dialogue Agents

Seongbo Jang, Minjin Jeon, Jaehoon Lee +3

While research on dialogue response generation has primarily focused on generating coherent responses conditioning on textual context, the critical question of when to respond grou…

cs.LG2025

Delving into Instance-Dependent Label Noise in Graph Data: A Comprehensive Study and Benchmark

Suyeon Kim, SeongKu Kang, Dongwoo Kim +2

Graph Neural Networks (GNNs) have achieved state-of-the-art performance in node classification tasks but struggle with label noise in real-world data. Existing studies on graph lea…

cs.CL2025

On the Effectiveness of Integration Methods for Multimodal Dialogue Response Retrieval

Seongbo Jang, Seonghyeon Lee, Dongha Lee +1

Multimodal chatbots have become one of the major topics for dialogue systems in both research community and industry. Recently, researchers have shed light on the multimodality of…

cs.IR2025

Capturing User Interests from Data Streams for Continual Sequential Recommendation

Gyuseok Lee, Hyunsik Yoo, Junyoung Hwang +2

Transformer-based sequential recommendation (SR) models excel at modeling long-range dependencies in user behavior via self-attention. However, updating them with continuously arri…

cs.SE2025

How Diversely Can Language Models Solve Problems? Exploring the Algorithmic Diversity of Model-Generated Code

Seonghyeon Lee, Heejae Chon, Joonwon Jang +2

Language models (LMs) have exhibited impressive abilities in generating code from natural language requirements. In this work, we highlight the diversity of code generated by LMs a…

cs.IR2025

Improving Scientific Document Retrieval with Concept Coverage-based Query Set Generation

SeongKu Kang, Bowen Jin, Wonbin Kweon +4

In specialized fields like the scientific domain, constructing large-scale human-annotated datasets poses a significant challenge due to the need for domain expertise. Recent metho…

cs.IR2025★ 5 cited

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…

cs.IR2025★ 3 cited

Collaborative Diffusion Model for Recommender System

Gyuseok Lee, Yaochen Zhu, Hwanjo Yu +2

Diffusion-based recommender systems (DR) have gained increasing attention for their advanced generative and denoising capabilities. However, existing DR face two central limitation…

cs.CL2024

Verbosity-Aware Rationale Reduction: Effective Reduction of Redundant Rationale via Principled Criteria

Joonwon Jang, Jaehee Kim, Wonbin Kweon +2

Large Language Models (LLMs) rely on generating extensive intermediate reasoning units (e.g., tokens, sentences) to enhance final answer quality across a wide range of complex task…

cs.IR2024

Controlling Diversity at Inference: Guiding Diffusion Recommender Models with Targeted Category Preferences

Gwangseok Han, Wonbin Kweon, Minsoo Kim +1

Diversity control is an important task to alleviate bias amplification and filter bubble problems. The desired degree of diversity may fluctuate based on users' daily moods or busi…

cs.IR2024★ 1 cited

Taxonomy-guided Semantic Indexing for Academic Paper Search

SeongKu Kang, Yunyi Zhang, Pengcheng Jiang +3

Academic paper search is an essential task for efficient literature discovery and scientific advancement. While dense retrieval has advanced various ad-hoc searches, it often strug…

cs.SE2024

Eliciting Instruction-tuned Code Language Models' Capabilities to Utilize Auxiliary Function for Code Generation

Seonghyeon Lee, Suyeon Kim, Joonwon Jang +3

We study the code generation behavior of instruction-tuned models built on top of code pre-trained language models when they could access an auxiliary function to implement a funct…