REFLECT: Summarizing Robot Experiences for Failure Explanation and
  Correction
Authors: name: Zeyi Liu, name: Arpit Bahety, name: Shuran Song

The ability to detect and analyze failed executions automatically is crucial
for an explainable and robust robotic system. Recently, Large Language Models
(LLMs) have demonstrated strong common sense reasoning skills on textual
inputs. To leverage the power of LLM for robot failure explanation, we propose
a framework REFLECT, which converts multi-sensory data into a hierarchical
summary of robot past experiences and queries LLM with a progressive failure
explanation algorithm. Conditioned on the explanation, a failure correction
planner generates an executable plan for the robot to correct the failure and
complete the task. To systematically evaluate the framework, we create the
RoboFail dataset and show that our LLM-based framework is able to generate
informative failure explanations that assist successful correction planning.
Project website: https://roboreflect.github.io/