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Stronger Random Baselines for In-Context Learning
April 22, 2024, 4:42 a.m. | Gregory Yauney, David Mimno
cs.LG updates on arXiv.org arxiv.org
Abstract: Evaluating the in-context learning classification performance of language models poses challenges due to small dataset sizes, extensive prompt-selection using the validation set, and intentionally difficult tasks that lead to near-random performance. The standard random baseline -- the expected accuracy of guessing labels uniformly at random -- is stable when the evaluation set is used only once or when the dataset is large. We account for the common practice of validation set reuse and existing small …
abstract accuracy arxiv challenges classification context cs.cl cs.lg dataset in-context learning labels language language models near performance prompt random set small standard tasks type validation
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