One Billion Word Benchmark for Measuring Progress in Statistical Language Modeling

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Authors Ciprian Chelba, Tomas Mikolov, Tony Robinson, Phillipp Koehn, Thorsten Brants, Qi Ge, Mike Schuster
Journal/Conference Name Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
Paper Category
Paper Abstract We propose a new benchmark corpus to be used for measuring progress in statistical language modeling. With almost one billion words of training data, we hope this benchmark will be useful to quickly evaluate novel language modeling techniques, and to compare their contribution when combined with other advanced techniques. We show performance of several well-known types of language models, with the best results achieved with a recurrent neural network based language model. The baseline unpruned Kneser-Ney 5-gram model achieves perplexity 67.6; a combination of techniques leads to 35% reduction in perplexity, or 10% reduction in cross-entropy (bits), over that baseline. The benchmark is available as a code.google.com project; besides the scripts needed to rebuild the training/held-out data, it also makes available log-probability values for each word in each of ten held-out data sets, for each of the baseline n-gram models.
Date of publication 2013
Code Programming Language Multiple
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