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Xuan Wang

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#artificial intelligence Preprint Oct 2026

VICO: Visual Environments Co-Evolving for Vision-Language Model Reasoning

Reinforcement learning with verifiable rewards (RLVR) has become a standard recipe for post-training vision-language models (VLMs), but it typically assumes a static training environment. As the actor improves, fixed tasks drift out of its learning frontier: many become trivial, others remain unsolvable; and the learni...

Meng Lu, Li-Geng Zhu, Olivia C. Xiao et al. · 0 citations
#machine learning Preprint Sep 2026

Elastic Selective Spectral Hybrids for Train-Once, Export-Many Budgeted Inference

Deploying a language model under different computing and latency budgets calls for compact models with different quality-cost trade-offs. Towards this end, elastic spectral state space models provide ordered and temporally decomposed channels that can be truncated, but they are associated with linear time-invariant fil...

Da-Chuan Song, Chu-Chu Chen, Xuan Wang · 0 citations
#machine learning Preprint Jan 2026

Elastic Spectral State Space Models for Train-Once Budgeted Inference

Elastic Spectral State Space Models is proposed, a train-once, export-many sequence modeling framework that gains elasticity through spectral approximation of the SSM sequence operator that can be truncated to competitive compact models compared with modern Transformer and SSM baselines at similar parameter scales.

Da-Chuan Song, Ju Yin, Ze-Chen Hu et al. · 1 citation
Jul 2026

Mergeable Model-Side Aggregation States for Long-Context Language Models

A model-side aggregation interface is introduced that maintains compact Hash-based HyperLogLog sketch states alongside a frozen language model that improves over direct full-context reasoning over chain-of-thought reasoning.

Da-Chuan Song, Ju Yin, Ze-Chen Hu et al. · 1 citation

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