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Author

Yoonjin Yoon

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#machine learning Preprint Sep 2026

HypLTSF: A Hyperbolic Geometric View of Multi-Scale Hierarchies for Long-Term Time Series Forecasting

HypLTSF is introduced, a framework that endows the multi-scale hierarchy with a concrete geometric form by embedding scale-wise representations into the Poincar\'e ball, whose exponentially expanding volume naturally accommodates hierarchical structures.

Namwoo Kim, Hyungryul Baik, Yoonjin Yoon · 0 citations
#artificial intelligence Preprint Sep 2026

Synergistic Fusion of Topological Structure and Temporal Semantics of Mobility for Urban Region Embedding

Mobility Stream-Structure Synergy (MoSS) is proposed, which derives complementary views from mobility data: a Sequence view that preserves each region's hourly inflow/outflow profile, and a Structure view that captures how regional connectivity emerges, persists, and dissolves over time.

Namwoo Kim, Jeeyun Chang, Kanghoon Lee et al. · 0 citations

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