Contents

Automatic Documentation and Mathematical Linguistics

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Vol. 55, No. 5, 2021

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Intelligent Systems

Research and Development in Artificial Intelligence Today: The Classics are Mainstream Again?

M. I. Zabezhailo p. 191  abstract

Models for Assessing the Security of Network Information Systems against Negative External Influences

Yu. Yu. Gromov and V. M. Tyutyunnik p. 196  abstract

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Information Systems

The Model of Effective Management in the Formation of a Production Portfolio

L. A. Mylnikov p. 203  abstract

A Process Control Methodology Based on Digital Twins of Production System Objects

V. N. Shvedenko, V. V. Shvedenko and O. V. Shchekochikhin p. 210  abstract

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Information Analysis

The Publication Activities of Russian Scientists in the Field of Medicine and Healthcare in Comparison with World Trends (1993–2019)

A. N. Libkind, A. Z. S. Salekh, V. A. Markusova and D. A. Rubwalter p. 219  abstract

Webometric Ranking of Library Sites in the World

O. Udartseva, P. Blinov and D. Kosyakov p. 229  abstract

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