Authors

Wei Liu

Publications 15

Preprint Open access

Spatial Latent Reasoning for Embodied Reference Understanding

Ling Li, Jianhui Zhong, Wei Liu et al. · 2026

Pointing-gesture visual grounding requires connecting hand geometry with the visual identity and extent of a referred object. A central challenge for continuous latent reasoning is how to organize these complementary cues into useful intermediate supervision. We propose Spatial Latent Reasoning (SLR), a framework that …

Preprint Open access

RadOnc-Agent: An LLM-Orchestrated Framework for AI Workflows Across the Radiotherapy Care Pathway

Artificial intelligence has advanced individual radiotherapy tasks, yet these capabilities remain separated across clinical stages, software environments and data modalities. This fragmentation contrasts with the longitudinal radiotherapy workflow from treatment decision-making through follow-up. Here we present RadOnc …

Preprint Open access

Learning Reliable GUI Agents under Imperfect Priors

Bo Han, Qianyi Wang, Shuai Liu et al. · 2026

GUI agents built on large language and vision-language models still struggle on unseen applications and complex multi-step tasks, as completing real GUI tasks depends on app-specific, temporally volatile operational knowledge that is scarce in pretraining corpora. Retrieval-augmented execution offers a natural remedy b …

Preprint Open access

Learning to Retrieve Missing Evidence for Long-Term Memory QA

Yi-Xuan Deng, Yi Zhang, Wei Liu et al. · 2026

Long-term memory enables language models to use past interactions in future conversations. However, evidence needed to answer a question may be scattered across distant turns, while the question itself omits clues needed to locate it. Retrieved facts can reveal these clues, motivating retrieval decisions conditioned on …

Preprint Open access

GTR: Gated Token Recurrence for Efficient Dense Prediction

Zhe Feng, Longfei Liu, Wei Liu et al. · 2026

Self-attention-based vision backbones perform well on dense prediction, but the quadratic computational cost of global softmax attention limits their efficiency as image resolution increases. We introduce Gated Token Recurrence (GTR), a softmax-free recurrent vision backbone that combines gated linear attention, altern …

Preprint Open access

DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression

DeepSeek-AI, Anyi Xu, B. Li et al. · 2026

The widespread adoption of long-horizon agents has made model workloads increasingly input-heavy. Although prior work has substantially reduced the cost of long-context computation, prefill remains computationally expensive, and large KV caches continue to strain HBM and SSD capacity and data-transfer bandwidth. Togeth …

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