HELPER-X: A Unified Instructable Embodied Agent to Tackle Four Interactive Vision-Language Domains with Memory-Augmented Language Models
CoRR(2024)
Abstract
Recent research on instructable agents has used memory-augmented Large
Language Models (LLMs) as task planners, a technique that retrieves
language-program examples relevant to the input instruction and uses them as
in-context examples in the LLM prompt to improve the performance of the LLM in
inferring the correct action and task plans. In this technical report, we
extend the capabilities of HELPER, by expanding its memory with a wider array
of examples and prompts, and by integrating additional APIs for asking
questions. This simple expansion of HELPER into a shared memory enables the
agent to work across the domains of executing plans from dialogue, natural
language instruction following, active question asking, and commonsense room
reorganization. We evaluate the agent on four diverse interactive
visual-language embodied agent benchmarks: ALFRED, TEACh, DialFRED, and the
Tidy Task. HELPER-X achieves few-shot, state-of-the-art performance across
these benchmarks using a single agent, without requiring in-domain training,
and remains competitive with agents that have undergone in-domain training.
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