Locally Typical Sampling
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Abstract (arXiv)
Today's probabilistic language generators fall short when it comes to producing coherent and fluent text despite the fact that the underlying models perform well under standard metrics, e.g., perplexity. This discrepancy has puzzled the language generation community for the last few years. In this work, we posit that the abstraction of natural language generation as a discrete stochastic process--which allows for an information-theoretic analysis--can provide new insights into the behavior of probabilistic language generators, e.g., why high-probability texts can be dull or repetitive. Humans use language as a means of communicating information, aiming to do so in a simultaneously efficient and error-minimizing manner; in fact, psycholinguistics research suggests humans choose each word in a string with this subconscious goal in mind. We formally define the set of strings that meet this criterion: those for which each word has an information content close to the expected information content, i.e., the conditional entropy of our model. We then propose a simple and efficient procedure for enforcing this criterion when generating from probabilistic models, which we call locally typical sampling. Automatic and human evaluations show that, in comparison to nucleus and top-k sampling, locally typical sampling offers competitive performance (in both abstractive summarization and story generation) in terms of quality while consistently reducing degenerate repetitions.
Key facts. Cited by 108 papers in the map (data through 7 Oct 2026). Builds on 28 of its 65 references that are in the map. First posted on arXiv 1 Feb 2022.
Builds on
28 of 65 references.
References · 28
- 2020Language Models are Few-Shot Learnerscited by 32,199
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- 2016Pointer Sentinel Mixture Modelscited by 2,992
- 2019The Curious Case of Neural Text Degenerationcited by 2,881
- 2016Google's Neural Machine Translation System: Bridging the Gap between Human and Machine Translationcited by 1,471
- 2018Hierarchical Neural Story Generationcited by 1,182
- 2015A Diversity-Promoting Objective Function for Neural Conversation Modelscited by 1,068
- 2016Abstractive Text Summarization Using Sequence-to-Sequence RNNs and Beyondcited by 809
- 2019Neural Text Generation with Unlikelihood Trainingcited by 489
- 2021MAUVE: Measuring the Gap Between Neural Text and Human Text using Divergence Frontierscited by 466
- 2017Regularizing Neural Networks by Penalizing Confident Output Distributionscited by 461
- 2019Facebook FAIR's WMT19 News Translation Task Submissioncited by 179
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- 2020A Knowledge-Enhanced Pretraining Model for Commonsense Story Generationcited by 116
- 2019On NMT Search Errors and Model Errors: Cat Got Your Tongue?cited by 114
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- 2019Calibration, Entropy Rates, and Memory in Language Modelscited by 32
- 2020A Systematic Characterization of Sampling Algorithms for Open-ended Language Generationcited by 28
- 2020Phonotactic Complexity and its Trade-offscited by 23
- 2021A surprisal--duration trade-off across and within the world's languagescited by 22
- 2020Decoding Methods for Neural Narrative Generationcited by 18
- 2019An Empirical Investigation of Global and Local Normalization for Recurrent Neural Sequence Models Using a Continuous Relaxation to Beam Searchcited by 12
- 2020Mirostat: A Neural Text Decoding Algorithm that Directly Controls Perplexitycited by 8
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Citing papers per year: 2022: 8; 2023: 28; 2024: 14; 2025: 25; 2026: 33.
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