Author

Junyoung Kim

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Open access Aug 2026

Personalized federated recommendation via long-horizon local optimization and regularized knowledge guidance

A model-agnostic framework that forms personalized item embeddings through Long-Horizon Local Optimization and injects common global knowledge through intermittent Regularized Knowledge Guidance is proposed and Adaptive Guidance is introduced to control the influence of global knowledge at the user–item interaction level.

Jaehyung Lim, Wonbin Kweon, Woojoo Kim et al. · Journal of Intelligence and... · 0 citations

Preprint Aug 2026

GOD: Enhancing Generalization via Deep Grafting for Sequential Recommendation

Graft-Oriented Distillation (GOD) is proposed, a component-level distillation framework for improved generalization through grafting, which uses selected frozen-teacher components with trainable student counterparts to build hybrid source models.

Woojoo Kim, Junyoung Kim, Jaehyung Lim et al. · 0 citations

#machine learning Preprint Aug 2026

Personalized and Multi-View Representation for Federated Cold-Start Recommendation

PMFRec learns a personalized representation generator to produce user-specific item representations from attribute features, and introduces a global multi-view encoder with item-adaptive gating and an orthogonality objective to capture complementary semantic views while reducing cross-view redundancy.

Jaehyung Lim, Wonbin Kweon, Woojoo Kim et al. · 0 citations