Authors

Guoting Wei

Publications 2

Preprint Open access

ManiUnit: A Manipulation Skill Dataset and Benchmark for Long-Horizon Tasks

Guoting Wei, Dawei Yan, Xia Yuan et al. · 2026

Long-horizon mobile manipulation requires a robot to navigate multi-room environments and execute a sequence of manipulation skills under a single natural language instruction. Learning and evaluating these skills present three challenges: similar observations under a fixed task instruction may make skill selection amb …

Preprint Open access

SubRot: Signed Gradient Subspace Calibration for VLM Rotation Quantization

Zhenhao Shang, Haizhao Jing, Haokui Zhang et al. · 2026

Post-training quantization reduces the deployment cost of vision-language models (VLMs), but preserving multimodal capabilities at low bit widths remains challenging. Existing methods rely on modality- or token-level gradient statistics, which are susceptible to cross-sample variations in visual-to-textual token ratios …

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