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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>The Formation Method of Recommendations in the Process of Scientific Peer Review of Mathematical Papers</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>N. I. Lobachevskii Institute of Mathematics</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Mechanics</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Higher School of Information Technologies</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Intelligent Systems</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Kazan (Volga Region) Federal University</institution>
        </aff>
      </contrib-group>
      <fpage>0000</fpage>
      <lpage>0003</lpage>
      <abstract>
        <p>A method for the automation of the scientific peer review workflow in a mathematical journal has been developed. For this, a database of experts in various areas of mathematics has been created in the journal's information system. For each expert, using automatic search methods for citation databases, a profile has been generated that includes various classification codes, in particular, Mathematics Subject Classification 2010 (MSC 2010). A system of coefficients has been developed that takes into account the professional interests of experts. Also, indicators of their workload in the review process are taken into account. The first step in forming recommendations for the examination of an article is to determine the scope of the research conducted in it. For this, the codes of mathematical subject classification presented in this article are distinguished. Further, according to these codes, a list of possible experts is formed. The developed method is implemented as plugins of Open Journal Systems (OJS) and tested in the information system of the scientific journal Lobachevskii Journal of Mathematics (https://ljm.kpfu.ru).</p>
      </abstract>
      <kwd-group>
        <kwd>scientific journal information system</kwd>
        <kwd>Open Journal Systems</kwd>
        <kwd>peer review workflow</kwd>
        <kwd>automated reviewers selection</kwd>
        <kwd>Mathematics Subject Classification 2010</kwd>
        <kwd>Lobachevskii Journal of Mathematics</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>-</title>
      <p>
        Currently, there has been an increase in the number of scientific publications in
professional journals, and the growth rate is more than 5% per year (see, for example,
[
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]).
      </p>
      <p>
        Today it is universally recognized that after acquiring new scientific knowledge,
the time needed to bring it to an interested audience should be as short as possible.
Therefore, the task of ensuring the life cycle of a scientific document is currently
being solved at new organizational and information levels (see, for example, [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ]). All
these processes are based on the widespread use of information and communication
technologies (ICT). At the same time, there is practically no difference between
electronic and print publications. Without information services and specialized programs,
it became impossible to prepare a scientific work for publication, and without network
communications to publish it. In addition, new forms of scientific publications have
appeared. The infrastructure of modern scientific publications has changed
significantly: today it is not so much about the forms and means of using ICTs, but about
creating a software platform that implements a developed system of services for
working with digital content. Thus, a modern scientific journal should be based on a
software platform that implements a developed system of services for working with
digital content, based on ICT.
      </p>
      <p>This article discusses the issues of expanding the functionality of the Open Journal
Systems (OJS) platform in order to automate the work processes of the scientific
journal editorial staff. A method for the automated selection of reviewers, the
distribution of notifications and the control of the review period is proposed.
2</p>
    </sec>
    <sec id="sec-2">
      <title>Automation of Business Processes of a Scientific</title>
    </sec>
    <sec id="sec-3">
      <title>Publication using Information Systems</title>
      <p>
        Currently, almost all scientific journals use software tools in their work. The main
features of the use of ICT in the process of publishing scientific journals were studied
in [
        <xref ref-type="bibr" rid="ref3 ref4 ref5">3–5</xref>
        ]. There, a comparison was made of existing information systems in terms of
automation of editorial processes. From the existing information systems, the open
platform Open Journal Systems was singled out.
      </p>
      <p>OJS is licensed under the GNU / GPL. Today this information system is used by
more than 9 thousand scientific journals around the world, in which there are at least
10 publications per year (https://pkp.sfu.ca/ojs/ojs-usage/ojs-stats/). OJS platform is
used by many Russian journals (see, for example, https://neicon.ru).</p>
      <p>
        OJS supports a wide range of business models for periodicals, as well as settings
for providing access from fully open access to resources to brief annotations and
commercial subscriptions. This allows you to use this system as a single platform for
managing a complex of electronic publications (for example, in a research or
educational organization) [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ].
      </p>
      <p>OJS System is configured as a cloud-based software platform that can be deployed
and managed locally. All workflow processes are configured directly by the editors of
each particular edition. OJS provides special tools for reading and viewing
publications in PDF and HTML formats. A number of functions are available for working
with bibliography and metadata. There are a number of other features.</p>
      <p>
        OJS has a modular architecture, which allows you to develop your own classes and
modules if necessary. The system has an MVC structure (Model-View-Controller),
respectively, data storage, user interfaces and control functions are divided into
different levels of interaction. This architecture provides fault tolerance, performance,
flexibility and scaling of the entire system [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
      </p>
      <p>OJS uses a role model of users with various access rights and a multi-stage process
of publishing resources. This process supports all stages of the life cycle of a
scientific article submitted for publication, from its initial download in the author's version
to the publication of the final version on the Internet and the formation of relevant
pointers and links. The functionality of the system allows the interaction of
participants in the editorial process online. OJS interface modules are implemented as sets
of Smarty templates (http://smarty.php.net), which allows you to change the user
interfaces of the system.
3</p>
    </sec>
    <sec id="sec-4">
      <title>Automation of the scientific peer review process</title>
      <p>
        An important distinguishing feature of the work of the editorial board of a scientific
journal is the organization of independent peer-reviewing with the involvement of
specialists in subject areas determined by the subject of the journal. The process of
scientific review is, as a rule, the most time-consuming when considering scientific
materials in the journal [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. At the same time, the selection of reviewers for a
qualified assessment of the work received in the journal, as well as the review itself, are
critical in time. Automation of this process can reduce the time spent – this is also
confirmed by practical experience (see, for example, [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ]). Such automation involves
the selection of a reviewer from the existing database of experts formed in the journal,
taking into account their professional competencies, the amount of review and current
workload.
      </p>
      <p>
        The scientific review process support service allows you to select reviewers for
each article submitted to the journal and automatically control the review process,
including sending out notifications and reminders. One of the options for such a
system of automation of the review process is implemented in the Lobachevskii Journal
of Mathematics [
        <xref ref-type="bibr" rid="ref4 ref5">4, 5</xref>
        ].
      </p>
    </sec>
    <sec id="sec-5">
      <title>Algorithm for Formation Recommendations for the Selection of Reviewers for Mathematical Papers</title>
      <sec id="sec-5-1">
        <title>Automated Selection of Reviewers for the Editorial Office of the Lobachevskii Journal of Mathematics</title>
        <p>year in the period 1998–2015 up to 12 issues currently. In addition, since 2008, LJM
has been indexed in the scientometric databases Scopus, Web of Science and many
bibliographic and abstracts databases (Zentralblatt Math, Google Scholar, Academic
OneFile, Expanded Academic, Mathematical Reviews, OCLC, SCImago, STMA-Z,
Summon by ProQuest, RSCI). As a result, the number of articles submitted to the
journal has significantly increased, and the previously developed algorithm for
selecting experts could not always sufficiently take into account the thematic diversity of
articles. At the same time, the practice of issuing specialized thematic issues of the
journal has significantly expanded. Therefore, there was an additional opportunity to
connect reviewers with the editors-compilers of these thematic issues, and the existing
automated system for selecting and appointing reviewers was transformed into a
recommendation system.</p>
        <p>
          The basis for the selection of recommendations, it was decided to use the
mathematical subject classification Mathematics Subject Classification (MSC 2000, MSC
2010) [
          <xref ref-type="bibr" rid="ref8">8</xref>
          ], and other classification features and keywords extracted from the texts of
articles, considered as clarifying [
          <xref ref-type="bibr" rid="ref9">9</xref>
          ].
4.2
        </p>
      </sec>
      <sec id="sec-5-2">
        <title>Mathematical Subject Classification and their Applications</title>
        <p>
          Mathematical Subject Classification (MSC) is created and maintained by
Mathematical Reviews (MR, http://www.ams.org/publications/math-reviews/math-reviews) and
Zentralblatt MATH (zbMATH, https://zbmath.org). This classification is used by all
major mathematical journals, the archive of electronic publications of scientific
articles and their preprints arXiv.org (https://arxiv.org/), and digital mathematical
libraries [
          <xref ref-type="bibr" rid="ref10">10</xref>
          ]. The current version is MSC2010 (http://msc2010.org/;
https://mathscinet.ams.org/msc/msc2010.html; https://zbmath.org/classification), the
codes of the MSC2000 classifiers were used until 2010. The next version of the
mathematical subject classification MSC2020 (https://msc2020.org/) has been announced.
        </p>
        <p>MSC is a three-layer scheme using alphanumeric codes. The classifier code of the
first layer consists of two digits, the second layer is determined by the capital letter of
the Latin alphabet “A”, “B” or “C”, the third layer contains two digits. For example,
the code “42C40 Wavelets and other special systems” refers to the third layer of the
hierarchy, the parent code is “42C Nontrigonometric harmonic analysis”, and the code
“42 Harmonic Analysis on Euclidean spaces” belongs to the top layer of the diagram.</p>
        <p>MSC2010 contains 63 nodes of the first layer, starting with “00 General
mathematics” and ending with “97 Mathematics education”. The numbering is not continuous,
for example, codes “02”, “04”, “07”, “21” and some others are missing. The second
layer contains 528 codes, and the third contains 5606.</p>
        <p>
          In [
          <xref ref-type="bibr" rid="ref11">11</xref>
          ], the MSC2010 classifiers were converted to RDF Linked Data using the
standardized Simple Knowledge Organization System (SKOS,
https://www.w3.org/TR/skos-reference/). This makes it possible to assign classifiers
not only to articles, but also to blog posts, figures, and formulas.
        </p>
        <p>
          In [
          <xref ref-type="bibr" rid="ref12">12</xref>
          ], the results of machine learning MSC for the full text of articles in the
mathematical digital libraries DML-CZ and NUMDAM are presented. These libraries
have an article search service by MSC codes.
        </p>
      </sec>
      <sec id="sec-5-3">
        <title>Main Steps of the Algorithm for Generating Recommendations for the Selection of Reviewers</title>
        <p>The algorithm for generating recommendations for the selection of reviewers consists
of two modules. The first module implements the creation and replenishment of the
expert database in the journal information system, the second module selects experts
for the specific article in question.</p>
        <p>
          To form an expert profile, an automated search is conducted in the abstract and
bibliographic databases of the articles of the author, included in the composition of
experts. The MSC codes indicated in these articles (see Fig. 1) are included in the
expert profile. In case codes MSC2000 are indicated, they are converted to codes
MSC2010 [
          <xref ref-type="bibr" rid="ref13">13</xref>
          ].
Further, from the articles in which the expert participated in the review process (as
a reviewer, compiler of the thematic issue or a member of the editorial board who
submitted the article), the MSC codes are extracted and converted into MSC2010
codes. After that, the codes are added to the profile of the expert under consideration
(see Fig. 2).
        </p>
        <p>Fig. 2. Managing Reviewer Profile in OJS</p>
        <p>If the classifier code is already present in the profile, the weight of this code
increases and it is written to the database (see Fig. 3).</p>
        <p>If the expert, after viewing the article, selects the option “UNABLE TO DO THE
REVIEW” (refusal to review) on the “Review” page of the OJS information system,
then the codes in the expert profile that match the article codes have a reduced weight.
Figure 4 shows a fragment of an expert profile with codes MSC2010.</p>
        <p>When adding classifier codes to the expert profile, information retrieval methods
are used. In particular, a model of the vector space of documents is created, by
analogy with which the profiles of reviewers act as documents, and the classifier codes
from the reviewer's profile act as the corresponding terms:
(
)
⁄∑
where is the number of occurrences of the MSC 2010 code in the general list of
codes in the reviewer profile d, and the denominator contains the total number of
codes in this profile.</p>
        <p>As a rule, the first code is the main code that determines the topic of the article. For
clarification, the rest of the codes given in the article are used. Therefore, in the
algorithm, the first classifier in the list is assigned the highest weight (for example, twice
as many as the next).</p>
        <p>After calculating the weight of each extracted code, an entry is made in the expert
profile. To perform this operation, you need to make changes to the structure of the
database table. To do this, OJS provides the ability to modify the table using the
database schema DTD adopted from ADOdb (see,
https://github.com/pkp/pkplib/blob/master/dtd/xmlSchema.dtd, http://adodb.org/dokuwiki/doku.
php?id=v5:axmls:axmls_index). So, for example, the “tf” field was added to the
“user_interests” table (see Fig. 3). This field stores the value obtained by the above
formula. Reviewers are selected based on a vector model. In accordance with the tf-idf
method for this article, weights are calculated from three levels of MSC classifiers:
Here t is the MSC code, d is the expert profile, D is the set of expert profiles, N is the
total number of expert profiles, df is the number of experts who have the MSC code t.</p>
        <p>Next, the cosine measure is calculated between the query vector generated using
the previous formula and each expert profile from database of the system:
(⃗ ( ) ⃗ ( ))
‖ ⃗ ( )‖‖ ⃗ ( )‖
where q is the vector of the analyzed article, and di is the vector obtained from the
reviewer`s profile. Elements of these vectors are MSC codes.
Fig. 5. Formed recommendation containing a list of reviewers most preferred for the selected
article</p>
        <p>In the next step, the cosine measure for each classifier layer is calculated and then
summation is performed using a decreasing coefficient for each layer (0.5; 0.3 and
0.2, respectively):
(
)
∑
(
)
where δ is the decreasing coefficient for each layer.</p>
        <p>The assignment of reviewers in the OJS system is done by a user who has the roles
of “Editor” or “Section Editor”. Reviewers are selected from the list of system users
who have the role of “Reviewer”. This choice can be made only in manual mode –
based on the professional experience of the editor.</p>
        <p>The OJS system provides opportunities for changing its functionality by adding
modules (plug-ins) compiled according to certain rules. Since the system is written in
PHP and is open, it is possible to make changes to the functionality of the system
without using special OJS tools. Finally, the result is provided at Figure 5.</p>
      </sec>
    </sec>
    <sec id="sec-6">
      <title>Conclusion</title>
      <p>A method for the automated selection of possible reviewers for scientific papers
submitted for publication in the information system of a scientific journal is proposed,
based on the use of Mathematics Subject Classification 2010 to determine the subject
area to which the research results submitted for publication belong. The method is
implemented as a service using the OJS plug-in technology and can be used in any
mathematical journal that runs on the OJS platform. The method was tested in the
information system of the Lobachevskii Journal of Mathematics.</p>
      <p>This work was funded by the subsidy allocated to Kazan Federal University for the
state assignment in the sphere of scientific activities, grant agreement
No. 1.2368.2017). The work partially contains the results of the project “Monitoring
and standardization of the development and use of technologies for storing and
analyzing big data in the digital economy of the Russian Federation”, carried out as part
of the program of competence of the National Technological Initiative “Center for
storing and analyzing big data”, supported by the Ministry of Science and Higher
Education Of the Russian Federation under the Treaty of Moscow State University
named after M.V. Lomonosov with the Project Support Fund of the National
Technological Initiative dated 08/15/2019 No. 7/1251/2019. The work was also carried out
with the partial support of the Russian Fund for Basic Researches and the
Government of the Republic of Tatarstan within the framework of scientific projects
18-2903086, 18-47-160012.</p>
    </sec>
  </body>
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