Preprint
Sep 2026
What do VLM-Based Vision-Language Navigation Models Rely on: Interpreting and Steering Policy Behavior
This work uses intervention-based metrics that measure how visual observations, instructions, and visual memory causally influence navigation decisions and shows that these navigation policies are sensitive to all input modalities and do not depend on a single one.
Débora Oliveira Makowski, Samiran Gode, Abhijeet Nayak et al.
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