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Yuzhe Yang

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#artificial intelligence Preprint Oct 2026

TimeNet: An Extensible Unified Data Infrastructure for Next-Generation Temporal Foundation Models

TimeNet provides the data and systems foundation needed to move beyond task- and dataset-specific TFMs toward models that can learn jointly across heterogeneous domains, modalities, temporal scales, and forms of supervision from a common data model.

Martin Maritsch, Timo Stoffregen, Thomas Kaar et al. · 0 citations
#artificial intelligence Preprint May 2026

DemoEvolve: Demonstration-Guided Harness Evolution under Sparse Feedback

Harness evolution enables frozen language model agents to adapt to unfamiliar tasks by modifying the external programs that govern their behavior. For long-horizon tasks, each rollout is costly, and a limited interaction budget may yield few examples of effective behavior. Sparse, delayed feedback also makes it difficu...

Li-Rong Che, Yu-Zhe Yang, Pei Lin et al. · 5 citations · ⚡1
#artificial intelligence Preprint Sep 2026

PPG-LM: A Photoplethysmography-Language Model with Multi-Level Clinical Alignment

Photoplethysmography (PPG) is widely recorded by clinical monitors and consumer wearables, providing a scalable source of continuous physiological information. These recordings offer an opportunity for physiological assessment at scale, but realizing this potential requires models to learn from both signal-derived phys...

Xiao-Da Wang, Min-Xiao Wang, Maxwell A. Xu et al. · 0 citations
#machine learning Preprint Sep 2026

Locating Hidden Failures Makes Long-Horizon Agents More Reliable

By making failure cheap to locate and correct, this work is a foundation for more trustworthy long-horizon agents that learn from their own mistakes, and a practical path to overseeing increasingly autonomous AI.

Salman Rahman, Y. Kim, Mihir Parmar et al. · 2 citations
Open access Jul 2026

Capable language models can outgrow the benefits of collaboration

A controlled study of large language model agents across 260 configurations shows when multi-agent collaboration helps or hurts performance, and introduces a predictive model that selects the best architecture in 87% of held-out within-domain configurations.

Y. Kim, Ken Gu, Chanwoo Park et al. · 6 citations

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