Papers › Black-box language model explanation by context length probing

Black-box language model explanation by context length probing

30 Dec 2022arXiv:2212.14815archive 2025-07-28

Ondřej Cífka, Antoine Liutkus

The increasingly widespread adoption of large language models has highlighted the need for improving their explainability. We present context length probing, a novel explanation technique for causal language models, based on tracking the predictions of a model as a function of the length of available context, and allowing to assign differential importance scores to different contexts. The technique is model-agnostic and does not rely on access to model internals beyond computing token-level probabilities. We apply context length probing to large pre-trained language models and offer some initial analyses and insights, including the potential for studying long-range dependencies. The source code and an interactive demo of the method are available.

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Language ModelingLanguage Modelling

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