Lost in the Middle: How Language Models Use Long Contexts

Liu et al., 2024, Lost in the Middle (Transactions of ACL, vol. 12)

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4.3 Effect of Instruction Fine-Tuning

  1. Is instruction tuning responsible for the U-shaped curve?
    No: the base MPT-30B showed the same U shape as MPT-30B-Instruct (instruction tuning only slightly reduced the gap). Among Llama-2 models, the 7B ones were purely recency-biased, while 13B and 70B showed the U shape.

Source

  • Nelson F. Liu, Kevin Lin, John Hewitt, Ashwin Paranjape, Michele Bevilacqua, Fabio Petroni and Percy Liang. 2024. Lost in the Middle: How Language Models Use Long Contexts. In Transactions of the Association for Computational Linguistics, vol. 12, pp. 157–173. License: CC BY 4.0. Flashcards adapted from this work. doi:10.1162/tacl_a_00638 https://aclanthology.org/2024.tacl-1.9/