SOURCE-LINKED INTELLIGENCE

ReSTI: A Source-Grounded Audit and Repair of STI-Bench

arXiv · AI, language, vision and robotics · article · Sep 21, 2026 · UTC

Spatial--temporal benchmarks are valid only when their questions, source annotations, and answer options identify the same physical quantity. We audit STI-Bench against the official ScanNet, Waymo, and Omni6DPose sources and find systematic coordinate-system and timestamp errors, under-specified targets and times, and disagreements between keyed options and answer details. We introduce ReSTI, a source-backed revision that reconstructs every recoverable answer under an explicit target, time, coordinate system, physical quantity, and unit. Source reconstruction reveals task-level geometric failu

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