arxivcs.RO2026-07-20
STeP: Signal Temporal Logic for Precise Specifications for Action Generation with Vision Language Models
Kasra Torshizi, Anukriti Singh, Sidharth Mathur, Khuzema Habib, Leo Du, Pratap Tokekar
Vision-language-action (VLA) models have shown impressive generalization, but often lack interpretability and can struggle to follow precise natural language instructions that encode spatial, temporal, and logical requirements. We propose a hierarchical framework that uses Signal…