Article

PIFR: A Benchmark for Preemptive Instruction Following and Task Resumption in Long-Horizon Embodied Navigation

The authors propose the PIFR benchmark to evaluate preemption and resumption capabilities in long-horizon embodied navigation when a higher-priority instruction interrupts the current task sequence. PIFR includes single, repeated, and nested interruption settings, with stage-specific metrics for inserted-task completion, resumption of the original task, and completion of the full sequence. The authors also propose a lightweight candidate-ranking baseline to improve target re-grounding after interruption.

Part of the event: Authors Propose PIFR Benchmark for Navigation Interruption Recovery

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