الباحثون

Yuwei Zhang

المنشورات 4

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MorphCL: Morphological Contrastive Learning for Inertial-based Human Activity Recognition

Marius Bock, Yuwei Zhang, Juergen Gall وآخرون · 2026

Despite the ubiquity of sensors in wearable and mobile devices and the abundance of human movement data they generate, translating unlabeled recordings into foundational motion models remains an open challenge. Self-supervised learning (SSL) has alleviated the need for costly annotations, yet existing approaches leave …

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

Temporal Foundation Models (TFMs) aim to generalize across domains, datasets, and tasks. Yet, their development remains constrained by fragmented, task-specific data formats, annotations, and processing pipelines. We introduce TimeNet, an open-source data standard and scalable infrastructure that decouples temporal dat …

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Training LLM Judges from Language Feedback via Position-Selective Self-Distillation

Ilgee Hong, Changlong Yu, Zhenghao Xu وآخرون · 2026

We study training LLM judges from natural language feedback, especially for subjective tasks where the verdict depends strongly on which evaluation criteria the judge invokes and how it weighs them. The dominant approach, outcome-supervised RL (e.g., GRPO), credits every token in the rollout with a single scalar determ …

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PAIQ: Patch-Aligned Semantic Injection via Residual Rotation

Pinze Ren, Yuwei Zhang, Hao Chen وآخرون · 2026

Language-aligned and self-supervised visual encoders offer complementary strengths in semantic abstraction and spatial detail. Harnessing this complementarity requires enriching local features while retaining distinctions between semantically related patches. We introduce PAIQ, a patch-aligned semantic injection framew …

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