Papers › Recite, Reconstruct, Recollect: Memorization in LMs as a Multifaceted Phenomenon

Recite, Reconstruct, Recollect: Memorization in LMs as a Multifaceted Phenomenon

25 Jun 2024arXiv:2406.17746archive 2025-07-28

USVSN Sai Prashanth, Alvin Deng, Kyle O'Brien, Jyothir S V, Mohammad Aflah Khan, Jaydeep Borkar, Christopher A. Choquette-Choo, Jacob Ray Fuehne, Stella Biderman, Tracy Ke, Katherine Lee, Naomi Saphra

Memorization in language models is typically treated as a homogenous phenomenon, neglecting the specifics of the memorized data. We instead model memorization as the effect of a set of complex factors that describe each sample and relate it to the model and corpus. To build intuition around these factors, we break memorization down into a taxonomy: recitation of highly duplicated sequences, reconstruction of inherently predictable sequences, and recollection of sequences that are neither. We demonstrate the usefulness of our taxonomy by using it to construct a predictive model for memorization. By analyzing dependencies and inspecting the weights of the predictive model, we find that different factors influence the likelihood of memorization differently depending on the taxonomic category.

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calculate_perplexity eleutherai/semantic-memorization/inference.py official repository ran no licence file found · pointer only · f6beaa0ccde5ca7b · report
derive_is_templating_feature eleutherai/semantic-memorization/model_parameters.py official repository ran no licence file found · pointer only · a04b720114cec6f5 · report
expected_calibration_error eleutherai/semantic-memorization/model_utils.py official repository ran no licence file found · pointer only · 736b3b9ab49b28d1 · report
taxonomy_function eleutherai/semantic-memorization/model_parameters.py official repository ran no licence file found · pointer only · 5168d8641144741d · report
load_model eleutherai/semantic-memorization/inference.py official repository unverified no licence file found · pointer only · e6da393d365fbc8a · report
load_tokenizer eleutherai/semantic-memorization/inference.py official repository unverified no licence file found · pointer only · a1952e4763d93dba · report

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Memorization

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