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Author

Doyeon Lee

2 papers indexed here

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Aug 2026

Co-hydrothermal carbonization of biopolymer and biomass wastes: Sustainable valorization into solid fuel and thermal filler.

The rapid growth of polylactic acid (PLA) consumption has created a disposal challenge because PLA degrades slowly under natural conditions and is rarely recovered through conventional recycling. This study proposes co-hydrothermal carbonization (co-HTC) with biomass as a practical valorization route to convert mixed P...

Jung-Hun Kim, Zambaga Otgonbayar, Thu-Huong Le et al. · 0 citations

QUATRO: Query-Adaptive Trust Region Policy Optimization for LLM Fine-tuning

This work proposes Query-Adaptive Trust-Region policy Optimization (QUATRO), which directly enforces trust-region constraints through a principled optimization, and shows stable training under increased policy staleness and aggressive learning rates, maintaining well-controlled entropy throughout training.

Doyeon Lee, Eun-Young Lyou, Hyunsoo Cho et al. · 1 citation

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