Author

Qingwen Liu

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Preprint Aug 2026

MIRA: Medical Image Reflection for Agentic Diagnosis

Medical visual agents can use tools to inspect images and retrieve external knowledge, but indiscriminate tool use may introduce noisy or misleading evidence. Reliable diagnosis therefore requires not only acquiring additional observations, but also verifying whether tool actions are necessary and whether the resulting...

Sheng-Zhi Wang, Jun Yang, Kai Wu et al. · 0 citations

#machine learning Preprint May 2026

World Model Control by Trajectory Reachability Metrics

A fixed encoder is studied in a fixed encoder and trajectory reachability metrics (TRM), a small temporal pairwise cost trained from logged trajectories and used to rank predicted endpoints of a candidate action sequence against a goal is introduced.

Lian Li, Shengzhi Wang, Li-Bin Qiu et al. · 2 citations

Preprint Jul 2026

Action from Adjacent Set in Physical Space Outperforms the Best Prediction in World Models

This work introduces Adjacent Set Action Reconstruction (ASAR), a method that identifies an adjacent set using standardized early action prefixes and reconstructs a full action sequence through locally weighted aggregation with a light anchor from the sequence with minimum cost.

Lian Li, Qingwen Liu, Mingqing Liu et al. · 0 citations