Challenge: Existing decoding methods struggle to balance factuality and diversity . Deterministic decoding approaches suffer from degeneration and lack of diversity - a problem that is not addressed by the current literature.
Approach: They propose a plug-and-play stochastic approach that adjusts decoding focus based on distributional differences across layers, leveraging the modular nature of factual knowledge within LLMs.
Outcome: Extensive experiments on seven datasets show that DFD significantly improves performance.

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Challenge: Pretrained language models (PLMs) have impressive capabilities in open-ended text generation.
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