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Jingying Zeng

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Preprint Aug 2026

OmniRouting: A Semantic-Coupled Multimodal Benchmark for Constraint-Aware Spatial Reasoning in PCB Routing

OmniRouting is the first large-scale benchmark designed to evaluate LLMs on printed-circuit-board (PCB) routing reasoning under real-world industrial design-rule, manufacturability, and connectivity constraints, and reveals substantial limitations of current LMMs in PCB routing.

Taiting Lu, Kaiyuan Lin, Ziwei Dong et al. · 0 citations
Preprint Aug 2026

OmniCAD: A Large-Scale Benchmark for 3D Spatial Reasoning in Robotics Assemblies

OmniCAD is introduced, a large-scale benchmark for assembly-aware 3D spatial reasoning across diverse industrial systems, including robotic mechanisms, automotive components, aerospace structures, and agricultural machinery, and tool-augmented agentic reasoning.

Mingjia Wang, Taiting Lu, Ziwei Dong et al. · 1 citation
Preprint Aug 2026

OmniMech: All-in-one Multimodal Mechanical Benchmark for 3D Reconstruction

OmniMech is introduced, the first million-scale benchmark for evaluating VLMs on executable CAD generation from industrial manufacturing data, and experiments show that current VLMs and CAD-specialized models still struggle with executable program synthesis, fine-grained 3D reconstruction, and reliable enforcement of dimensions and tolerances.

Taiting Lu, Runze Liu, Ziwei Dong et al. · 0 citations

Evolving Agents in the Dark: Retrospective Harness Optimization via Self-Preference

Retrospective Harness Optimization is introduced, a self-supervised method that optimizes the agent harness using only past trajectories and alters the agent's behavior patterns and sustains higher accuracy during long-horizon sessions.

Wenbo Pan, Shujie Liu, Chin-Yew Lin et al. · 8 citations · ⚡1

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