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In-context Learning and Gradient Descent Revisited
April 2, 2024, 7:45 p.m. | Gilad Deutch, Nadav Magar, Tomer Bar Natan, Guy Dar
cs.LG updates on arXiv.org arxiv.org
Abstract: In-context learning (ICL) has shown impressive results in few-shot learning tasks, yet its underlying mechanism is still not fully understood. A recent line of work suggests that ICL performs gradient descent (GD)-based optimization implicitly. While appealing, much of the research focuses on simplified settings, where the parameters of a shallow model are optimized. In this work, we revisit evidence for ICL-GD correspondence on realistic NLP tasks and models. We find gaps in evaluation, both in …
abstract arxiv context cs.cl cs.lg few-shot few-shot learning gradient in-context learning line optimization parameters research results simplified tasks type work
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