Text Categorization Methods Using Topical Importance Characteristic used the 
Twenty Newsgroups dataset. The result of classifiers' performance on different subsets shows
 Feature Selection for Text Classification of a News Flows based on Topical Importance Characteristic and Multinomial Naïve Bayes. The Accuracy of classification results was tested in the “20-
Newsgroups” dataset
 "The Vegetarian Twenties" in Zakhar Prilepin’s the Monastery"The Vegetarian 
Twenties" in Zakhar Prilepin’s the Monastery
 Study of the Method of Classification of News Based on Distributive Semantics of classification is shown. As a set of data was taken “The 20 
Newsgroups dataset”. Presented results of a
 Improving unsupervised neural aspect extraction for online discussions using out-of-domain classification such as news articles and 
newsgroup documents. In this work, we introduce a simple approach based on sentence
 Possible ways of mini-fullerene formation: from four to twenty 
this it follows that the least fullerene has 
twenty atoms forming twelve pentagons. We have supposed
 Twenty-first century clouds over Indo-European homelandsMallory J. P.   
Twenty-first century clouds over Indo-European homelands [Электронный ресурс
 Twenty-four hour monitoring and self-monitoring of blood pressure: a new emphasis of efficient useTwenty-four hour monitoring and self-monitoring of blood pressure: a new emphasis of efficient use