Papers › Improving Open-Ended Text Generation via Adaptive Decoding

Improving Open-Ended Text Generation via Adaptive Decoding

28 Feb 2024arXiv:2402.18223archive 2025-07-28

Wenhong Zhu, Hongkun Hao, Zhiwei He, Yiming Ai, Rui Wang

Current language models decode text token by token according to probabilistic distribution, and determining the appropriate candidates for the next token is crucial to ensure generation quality. This study introduces adaptive decoding, a mechanism that dynamically empowers language models to ascertain a sensible candidate set during generation. Specifically, we introduce an entropy-based metric called confidence and conceptualize determining the optimal candidate set as a confidence-increasing process. The rationality of including a token in the candidate set is assessed by leveraging the increment of confidence. Experimental results reveal that our method balances diversity and coherence well. The human evaluation shows that our method can generate human-preferred text. Additionally, our method can potentially improve the reasoning ability of language models.

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