Mucheol Kim

Application of Recommendation System for Personalized Smart Home Care

2022 · 2022 13th International Conference on Information and Communication Technology Convergence (ICTC)

Smart home care refers to a technology used to provide optimal life care services through information on the state of users in the living space and surrounding environment. With the recent rapid development of online …

WalkGCN: a biased sampling strategy for GNNs on non-attributed graphs

2025 · Journal Of Big Data

Graph Neural Networks (GNNs) typically assume the presence of node attributes to capture interactions in a graph structure. However, real-world graph data often has incomplete or completely-missing attribute information. GNN approaches to dealing with incomplete …

The Semantic Design Space of Retrieval-Augmented Recommender Systems: A Systematic Review of LLM-Based Approaches

2026 · Computers, materials & continua/Computers, materials & continua (Print)

Large language models (LLMs) are increasingly integrated into recommender systems to support semantic reasoning, natural language understanding, and user-adaptive personalization. However, their reliance on static parametric ... | Find, read and cite all the research …