SSI-2019

                                      Preface


   This volume contains the papers presented at the 21st Conference on Scientific Ser-
vices & Internet (SSI-2019)1 held on September 23-28, 2019 in Novorossiysk-Abrau,
Russia.
   SSI has been held annually since 1998 and has been published in CEUR Workshop
Proceedings since 20182.
   SSI-2019 was organized jointly by the Keldysh Institute of Applied Mathematics
and Kazan Federal University as the leaders in the field of programming and infor-
mation processing technologies with organization support by Southern Federal Univer-
sity.
   The issues discussed at the conference include: national bibliographic systems, Se-
mantic Web, on-line libraries, and information systems for geology, geochemistry,
crystallography, physics of a solid body and nuclear physics. All the collected papers
have been reviewed by the program committee.
   The conference was attended by a wide scope of researchers from national and in-
ternational science centers and was supported by the Russian Foundation for Basic Re-
search, the project #19-07-20059.
   Last but not least, we are grateful to our program and organizing committees, who
made the conference possible.


January 2020

Conference co-chair,
Dr. Sc. Alexander Elizarov




1 http://agora.guru.ru/abrau2019/
2 http://ceur-ws.org/Vol-2260/
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Program Committee Chairs

 Mikhail Gorbunov-Posadov, Dr. Sc., Keldysh Institute of Applied Mathematics,
  Moscow
 Alexandr Elizarov, Dr. Sc., Kazan Federal University
 Vladimir Voevodin, corresponding member of the RAS, Lomonosov Moscow State
  University
 Mikhail Yakobovskiy, corresponding member of the RAS, Keldysh Institute of Ap-
  plied Mathematics, Moscow


Program Committee

 Mikhail Galanin, Dr. Sc., Keldysh Institute of Applied Mathematics, Moscow
 Viktor Gergel, Dr. Sc., Lobachevsky State University of Nizhni Novgorod
 Valeriy Zolotarev, Cand. Sc., St. Petersburg State University
 Andrey Klimov, Cand. Sc., Keldysh Institute of Applied Mathematics, Moscow
 Mikhail Kogalovskiy, Cand. Sc., IPR RAS, Moscow
 Vladimir Korenkov, Dr. Sc., Joint Institute of Nuclear Research, Dubna
 Viktor Krukov, Dr. Sc., Keldysh Institute of Applied Mathematics, Moscow
 Ludmila Massel, Dr. Sc., Melentiev Energy Systems Institute, Irkutsk
 Guriy Mikchailov, Cand. Sc., Dorodnicyn Computing Center FRC CSC, Moscow
 Sergey Parinov, Dr. Sc. CEMI RAS Moscow
 Andrey Pechnikov, Dr. Sc., IAMR, Petrozavodsk
 Vladimir Serebryakov, Dr. Sc., Dorodnicyn Computing Center FRC CSC, Moscow
 Leonid Sokolinskiy, Dr. Sc., South Ural Federal University, Chelyabinsk
 Alexandr Tomilin, Dr. Sc., ISP RAS, Moscow
 Boris Chetverushkin, academician of the RAS, Keldysh Institute of Applied Mathe-
  matics, Moscow
 Andrei Chugunov, Cand. Sc., ITMO, Saint Petersburg
 Mikhail Shifrin, Dr. Sc., NSI, Moscow


Academic Secretary of the Conference

 Tatiana Polilova, Dr. Sc., Keldysh Institute of Applied Mathematics, Moscow


Organizing Committee

 Vladimir Kondratenko, Southern Federal University
 Irina Petrova, UNIFORT, Rostov region
 Alexey Ermakov, Cand. Sc., Keldysh Institute of Applied Mathematics, Moscow
 Tatiana Polilova, Dr. Sc., Keldysh Institute of Applied Mathematics, Moscow
 Marina Kornilina, Cand. Sc., Keldysh Institute of Applied Mathematics, Moscow
 Sergey Grigoriev, Keldysh Institute of Applied Mathematics, Moscow
 Sergey Philimoshin, Keldysh Institute of Applied Mathematics, Moscow
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 Mickail German, Keldysh Institute of Applied Mathematics, Moscow
 Tatiana Sushkevich, Dr.Sc., Keldysh Institute of Applied Mathematics, Moscow
 Felix Kasparinskiy, Cand. Sc., Lomonosov Moscow State University, Moscow
 Alexey Kondratenko, GU CB, Rostov Region