Benchmark幻觉扩展词比率 / Hallucinated Expansion Term Rate
HETR
A query expansion evaluation metric that measures the proportion of hallucinated expansion terms lacking support from any relevant document, quantifying query-side faithfulness and complementing evaluation methods that rely solely on ranking quality metrics.
Timeline (last 90 days)
Oct 12
The study introduces a new query-side faithfulness metric, HETR (Hallucinated Expansion Term Rate), which counts the number of injected expansion terms that have no support in any relevant document.
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