collaborators

8 papers

cs.IR2026

Self-EvolveRec: Self-Evolving Recommender Systems with LLM-based Directional Feedback

Sein Kim, Sangwu Park, Hongseok Kang +6

Traditional methods for automating recommender system design, such as Neural Architecture Search (NAS), are often constrained by a fixed search space defined by human priors, limit…

cs.CV2026

Test-Time Training for Visual Foresight Vision-Language-Action Models

Sangwu Park, Wonjoong Kim, Yeonjun In +3

Visual Foresight VLA (VF-VLA) has become a prominent architectural choice in the recent VLA due to its impressive performance. Nevertheless, the inherent design of VF-VLA makes it…

cs.AI2026

Beyond the Final Answer: Evaluating the Reasoning Trajectories of Tool-Augmented Agents

Wonjoong Kim, Sangwu Park, Yeonjun In +3

Although recent tool-augmented benchmarks involve complex requests, evaluation remains limited to answer matching, neglecting critical trajectory aspects like efficiency, hallucina…

cs.IR2026

Token-Efficient Item Representation via Images for LLM Recommender Systems

Kibum Kim, Sein Kim, Hongseok Kang +7

Large Language Models (LLMs) have recently emerged as a powerful backbone for recommender systems. Existing LLM-based recommender systems take two different approaches for represen…

cs.IR2025

Lost in Sequence: Do Large Language Models Understand Sequential Recommendation?

Sein Kim, Hongseok Kang, Kibum Kim +6

Large Language Models (LLMs) have recently emerged as promising tools for recommendation thanks to their advanced textual understanding ability and context-awareness. Despite the c…

cs.LG2025

Dynamic Time-aware Continual User Representation Learning

Seungyoon Choi, Sein Kim, Hongseok Kang +2

Traditional user modeling (UM) approaches have primarily focused on designing models for a single specific task, but they face limitations in generalization and adaptability across…