LLMs perform consistently better on tasks where input words are replaced with a consistent, reversible substitution cipher than when replacements are random, and the authors propose this gap as a measure of task learning in in-context learning.
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ICL CIPHERS: Quantifying "Learning" in In-Context Learning via Substitution Ciphers
LLMs perform consistently better on tasks where input words are replaced with a consistent, reversible substitution cipher than when replacements are random, and the authors propose this gap as a measure of task learning in in-context learning.