Abstract
Topic modelling is a popular unsupervised method for text processing which provides interpretable document representation. One of the most high-level approaches, considering its capability of imitating the behaviour of various methods such as LDA or PLSA, is based on additive regularization technique. However, due to its flexibility and advanced regularization abilities, it is challenging to find optimal learning strategy to create high-quality topics, because a user needs to select the regularizers with their values and determine the order of application. At the same time, there is a lack of research on parameters optimization of topic models, especially for ARTM-based models. Our work proposes an approach that formalizes the learning strategy into a vector of parameters which can be solved with an evolutionary or Bayesian approach. An experimental study conducted on English and Russian datasets indicates that the proposed learning strategy can be successfully optimized even in the presence of strong constrains.
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This research is financially supported by The Russian Science Foundation, Agreement #20-11-20270.
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Khodorchenko, M., Teryoshkin, S., Sokhin, T., Butakov, N. (2020). Optimization of Learning Strategies for ARTM-Based Topic Models. In: de la Cal, E.A., Villar Flecha, J.R., Quintián, H., Corchado, E. (eds) Hybrid Artificial Intelligent Systems. HAIS 2020. Lecture Notes in Computer Science(), vol 12344. Springer, Cham. https://doi.org/10.1007/978-3-030-61705-9_24
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