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Deep dynamic neural networks for temporal language modeling in author communities

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Abstract

Language models are at the heart of numerous works, notably in the text mining and information retrieval communities. These statistical models aim at extracting word distributions, from simple unigram models to recurrent approaches with latent variables that capture subtle dependencies in texts. However, those models are learned from word sequences only, and authors’ identities, as well as publication dates, are seldom considered. We propose a neural model, based on recurrent language modeling (e.g., LSTM), which aims at capturing language diffusion tendencies in author communities through time. By conditioning language models with author and dynamic temporal vector states, we are able to leverage the latent dependencies between the text contexts. The model captures language evolution of authors via a shared temporal prediction function in a latent space, which allows to handle a variety of modeling tasks, including completion and prediction of language models through time. Experiments show the performances of the approach, compared to several temporal and non-temporal language baselines on two real-world corpora.

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Notes

  1. Code available at https://github.com/edouardelasalles/dar.

  2. Please note that this dataset contains papers with multi-authors. In the experiments reported below, we consider each text as written individually by each of its authors (i.e., it is contained in the individual text set of each of its authors). Combinations of author representations to model multi-authorship could correspond to an interesting perspective as future work.

  3. We did not use WordPiece in the NYT corpus since we noticed in experiments that it led to dramatic overfitting.

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Authors and Affiliations

  1. LIP6, Sorbonne Université, 75005, Paris, France

    Edouard Delasalles, Sylvain Lamprier & Ludovic Denoyer

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  1. Edouard Delasalles
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  2. Sylvain Lamprier
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  3. Ludovic Denoyer
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Correspondence to Sylvain Lamprier.

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Delasalles, E., Lamprier, S. & Denoyer, L. Deep dynamic neural networks for temporal language modeling in author communities. Knowl Inf Syst 63, 733–757 (2021). https://doi.org/10.1007/s10115-020-01539-z

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