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arXiv 1804.07705cs.CL
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轻量级自适应神经元和N-gram混合语言模型

Lightweight Adaptive Mixture of Neural and N-gram Language Models

Facebook AI Research(脸书人工智能研究院)

Anton Bakhtin, Arthur Szlam, Marc'Aurelio Ranzato, Edouard Grave

摘要:

通常情况下,性能最好的语言模型是神经语言模型与n-gram的集成。在这项工作中,我们提出了一种方法来改善这两个模型相结合。通过使用一个小的网络来预测两个模型之间的混合权重,我们在每个时间步调整它们的相对重要性。由于门控网络很小,它可以快速地对少量的数据进行训练,并且不会在评分时增加开销。我们在十亿字基准上进行的实验表明,在没有重新训练基本模块的情况下,与最先进的合奏相比,有了显着的改进。

英文摘要:

It is often the case that the best performing language model is an ensemble of a neural language model with n-grams. In this work, we propose a method to improve how these two models are combined. By using a small network which predicts the mixture weight between the two models, we adapt their relative importance at each time step. Because the gating network is small, it trains quickly on small amounts of held out data, and does not add overhead at scoring time. Our experiments carried out on the One Billion Word benchmark show a significant improvement over the state of the art ensemble without retraining of the basic modules.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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