The author details a method for calibrating a vision-based LLM-as-judge system, aiming for a Cohen's kappa score of at least 0.80 against human reviewers. This process involves defining a clear rubric with distinct dimensions for groundedness and completeness, building a human-labeled dataset with independent reviewers, and iteratively adjusting the judge model's prompts. The system was initially developed for a construction platform where field photos needed AI verification before contractor payments were released, using Claude Opus Vision for description generation and Arize AX for the judge pipeline. AI
IMPACT Provides a framework for improving the reliability of LLM-based evaluation systems in vision tasks.
RANK_REASON The item describes a novel methodology for evaluating and calibrating LLM-as-judge systems for vision tasks, including a detailed rubric and evaluation process. [lever_c_demoted from research: ic=1 ai=1.0]
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