@article{ITVS_2020_4_a9,
     author = {S. N. Karpovich and A. V. Smirnov and N. N. Teslya},
     title = {Penalty for unknown words in topic model},
     journal = {Informacionnye tehnologii i vy\v{c}islitelnye sistemy},
     pages = {111--124},
     publisher = {mathdoc},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ITVS_2020_4_a9/}
}