=Paper=
{{Paper
|id=Vol-2588/paper24
|storemode=property
|title=Advisory and Accounting Tool for Safe and Economically Optimal Choice of Online Self-Education Services
|pdfUrl=https://ceur-ws.org/Vol-2588/paper24.pdf
|volume=Vol-2588
|authors=Solomiia Fedushko,Yuriy Syerov,Oleksandra Tesak,Oksana Onyshchuk,Nataliia Melnykova
|dblpUrl=https://dblp.org/rec/conf/cmigin/FedushkoSTOM19
}}
==Advisory and Accounting Tool for Safe and Economically Optimal Choice of Online Self-Education Services ==
https://ceur-ws.org/Vol-2588/paper24.pdf
Advisory and Accounting Tool for Safe and Economically
Optimal Choice of Online Self-Education Services
[0000-0001-7548-5856] [0000-0002-5293-4791]
Solomiia Fedushko*1 , Yuriy Syerov1 ,
[0000-0002-4731-5419]
Oleksandra Tesak1 , Oksana Onyshchuk2 [0000-0001-8964-1450] ,
[0000-0002-2114-3436]
Nataliia Melnykova1
1
Lviv Polytechnic National University, Lviv, Ukraine
2
Ivan Franko National University of Lviv
solomiia.s.fedushko@lpnu.ua, Oleksandra.V.Tesak@lpnu.ua,
yurii.o.sierov@lpnu.ua, Oksana-onyshchuk@i.ua,
melnykovanatalia@gmail.com
Abstract. This paper considers the review of three popular online educational
platforms and their comparative characteristics of receiving course certificates,
multilingualism resource, a free course availability and a resource cooperation
with leading universities and companies. The importance and the positive as-
pects of self-education are emphasized. The most popular educational channels
and YouTube videos that are used by people all over the world are analyzed.
The most popular courses, which are studied, and the main elements of educa-
tional videos promoting the better mastering of information and the more inter-
esting presentation of materials are determined. This paper also contains a top
ranking of the most popular educational channels and the current state of the
Ukrainian educational content on YouTube. The leading countries that have the
largest number of educational videos and informative content are determined.
The online self-education helps to develop both an activity scope on the whole
and a specific question or problem. The advices system for the optimal online
educational service selection is proposed. Also, in this paper proposed the
methods of efficiency determination and rating of the optimal and secure selec-
tion of educational online service.
Keywords: Education; Educational Online Service; Online educational plat-
forms; Self-education; Online-education; Advices System; Content.
1 Introduction
Dynamics and an active process of informing modern society for the successful im-
plementation require the individual’s continuous development and improvement. The
search of useful and at the same time relevant information, its reflection and analysis,
transferring the information into knowledge, the timely application of knowledge into
practice, free sharing and distributing them in a professional company all these are
very important for a person. In addition, the labor market of current proposals often
Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attrib-
ution 4.0 International (CC BY 4.0) CMiGIN-2019: International Workshop on Conflict Management in
Global Information Networks.
motivates people to so-called reformate the professional activities, as in basic univer-
sity education system the new knowledge may very often be irrelevant or inadequate.
In both cases, an important tool to meet the professional and educational needs, as
well as informational requests and interest is self-education.
The present practice shows that self-education helps people not only to learn the de-
tails or specific issues of the subject, but also to find their vocation, to a certain extent
to meet their communication and informational needs. The self-education feature is its
help in enriching the informational human capital, which its competitiveness on the
labor market depends on.
Self-education helps to enrich the informational human capital, which its competi-
tiveness on the labor market depends on. This activity contributes to a rapid self-
development that, as a result, increases the level of self-control and discipline.
In the self-education process a person has the informational freedom, which allows
studying the materials interesting to the subject of studying and, as a result of "free"
thinking, new thoughts, ideas, plans appear and if they are developed, innovations,
startups, which can be put into reality, are obtained.
No structure is willing to employ a specialist with a standard type of thinking, which
was founded by the traditional form of education, so every member of society has to
be adapted individually to the professional activity by maximum using the available
human capital in it.
Self-education allows a person to recognize and highlight specific aspects of life, a
tendency of analyzing facts, understanding of patterns, focusing on the future profes-
sional orientation needs to communicate, express their particular views about some-
thing, self-organization, commitment, anticipation of new challenges and the ways of
their elimination.
2 Analysis of the Most Popular Online Self-Educational
Service
Today, there are a lot of mostly free, online platforms for studying and further spe-
cializing in various fields. Among them, the most popular are online courses on topi-
cal subjects such as programming and the basics of creating a startup business, eco-
nomics and economic theory, network marketing and online media. The legal issues
both in the professional activities and in the daily life of a citizen, as well as the de-
velopment of "basic" languages are also important for self-education. The most popu-
lar online platforms available to Ukrainian users are: Prometheus; Coursera; and Fu-
tureLearn.
Prometheus [1] is the Ukrainian public massive open online courses project. The pur-
pose of the project is to provide a free access to the university level courses for every-
one in Ukraine.
The users of this online platform have the opportunity to take courses in program-
ming, entrepreneurship, creating and developing business, psychology and techniques
of effective communication, law, management, foreign languages and others. Prome-
theus offers and carries out the cooperation with leading universities (the courses are
given by the teachers KPI, Kyiv-Mohyla Academy, Kyiv National University), and
companies and organizations (Apple Consulting, “Spektor Law Firm”, Microsoft,
LITS, IBM, EPAM, VideoGorillas).
Coursera [2] is an educational platform that offers everyone online courses of leading
universities and organizations around the world. Coursera was launched in April 2012
with the cooperation of Stanford, Princeton, of Pennsylvania and Michigan Universi-
ties. Later 12 other higher education institutions in the world joined the project. To-
day, their total number is about 60. Coursera offers online training in the following
areas: engineering, social, computer, biomedical sciences, business, personal devel-
opment and learning foreign languages.
Future Learn [3] is a massive online platform founded in December 2012. Future
Learn offers a great variety of courses of leading UK and international universities
and institutions with huge archive of the cultural and educational material, such as
British Council, the British Library, the British Museum and the National Film and
Television School.
In addition, the online platform cooperates with a number of internationally renowned
organizations - from professional organizations such as the Association of Chartered
Certified Accountants (ACCA) and the Institute of Technique and Technology (IEPP)
to companies such as the BBC and Marks & Spencer, the UK Government.
Table 1. Comparative characteristics of online training platforms
Online learning platforms
Characteristics of online
platforms
Prometheus Coursera Future Learn
To obtain a certificate of the + + +
course
Multilingual resources +/- + -
(including Ukrainian)
The availability of free + +/- +
courses
The access from a variety of - + -
electronic devices
Cooperation of the resource
+ + +
with leading universities
and companies
Mandatory registration + + +
Among the variety of online platforms for self-education and self-development for the
user, there is the question of electing the most optimal and the most effective resource
according to certain criteria. For a visual example, let us analyze above mentioned
Prometheus, Coursera and Future Learn according to several criteria.
2.1 Comparative analysis of educational YouTube-Channels
Online platforms allow studying a particular area or discipline as a whole; however,
YouTube channels and their special videos provide more specific information con-
cerning a particular issue or problem. Category “Education on YouTube” is getting
more popular every day, which means the entertainment portal visitors like watching
science-fiction and educational videos more and more.
An important positive feature of this training is a hands-on experience of leading
speakers, scholars, teachers, professionals and progressive people or a presentation of
the theoretical knowledge that the informational customer needs to practice more than
60%. From the psychological point of view, if in the video a person sees the personal-
ity, who is popular, who achieved great success in his work or the caller likes his
appearance, then the information is better remembered and easily perceived. In addi-
tion, in such training videos we can see visual instructions how to use a particular
device, gadget, to hear a detailed description, pros and cons from the first word.
However, expanding horizons through the Internet, a person himself has to dig in a
huge flow of resources that can detract from the core. Another important feature of
educational videos is not the quantity but the quality of the material. Therefore, there
are video resources that specialize in one particular direction and the best quality in-
formation is provided exactly there.
The most popular areas are: programming, foreign languages, business, marketing,
consulting, medicine, chemistry, physics, biology, history, art, that is, everything
related to the professional growth and expansion of the knowledge base that allows
solving the required tasks and problems practically and effectively.
YouTube video provides the information from both domestic and foreign sources,
which can include subtitles in other languages to facilitate the perception of the
gained knowledge. That is, in five minutes you can learn that you will have to read for
half an hour. So a minute and a half news clip a half-minute commercials, snippets,
titles, collages, short news and interesting computer graphics contribute to a better
memorization and as a result, study of a particular subject [9].
According to the publication Forbes [4], the videos of one of the leading education
platforms KhanAcademy got more than 500 million views as a whole.
Fig. 1 The most popular educational channels and the number of followers
Khan Academy [5] uses the stories, supported by key points written by hand, VSause
is the charisma of a presenter, Veritasium is tricks and news reportage shooting, Crash
Course is animation. Dynamic YouTube videos with constantly changing plans, short
episodes with using “mental hooks” (jokes, famous savers) are a reference to the con-
centrated knowledge in a colorful package. They stimulate the informational requester
to form some fundamental knowledge [9]. Derek Mueller, the creator of Veritasium
[6], and the bright representative of online teachers believes that the best way of
learning is the learning face to face. If out of half a million people, at least one of the
tenth part will interest the words of the teacher, then in a few years a thousand profes-
sionals enthusiastic can be received [9].
The Ukrainian educational content on YouTube has a rapid development. There are
also tracings of the foreign projects in Russian. For the experiment, on the YouTube
search the keyword “online education” in different languages was entered.
The leaders of these videos were English-speaking countries, Spain and Russia (Fig-
ure 2).
Fig. 2 Leaders on the number of videos
Germany, Ukraine, Arabian countries, Italy, France, China, Poland and the Czech
Republic have also high rates.
Overall, the rates range from 7,770 videos to 12.2 million videos and are growing
continuously (Figure 3).
Assessing the first videos from the proposed list after the search, the number of views
shown in the diagram was separated (Fig. 4).
Fig. 3 The number of videos and search keywords
Fig. 4. The number of views of the first video on the list after searching
The absolute leader remains the English-language video with a maximum number of
376,338 views. The Arabian and Spanish videos have high rates with the relevant
numbers of 69,512 and 13,887 views.
Thus, one can argue that the nature of educational videos on YouTube are just begin-
ning and quickly becoming actual and popular, while the English-speaking countries
are safe to use these resources to self-education. Online platforms have their ad-
vantages, as they can be perceived as more serious, and a “student” as a result can
obtain a diploma or certificate. That all depends on the interest and the interests of
people, as a self-education has no limits. And the simpler the given information is, the
better it is perceived and remembered. And then, in the process of analyzing, the stud-
ied material, the new thoughts and ideas can serve as the basis for innovative think-
ing. That’s why a self-education is an integral part of the human activity, which in-
cludes elements of motivation, interest and self-organization and as a result all those
give impetus to the person progress and realization in the whole.
3 Efficiency of Secure and Optimal Selection of Online
Self-Educational Service
The total value of the customer parameters for educational online service is deter-
mined by the following equation:
𝑁𝑃𝑟𝑚
𝐶𝑢𝑠𝑡𝑜𝑚𝑒𝑟𝑖𝐸𝑑𝑂𝑛𝑆 = ∑𝑘=1
𝑖
𝑤𝑛 × 𝑃𝑟𝑚(𝐶𝑢𝑠𝑡𝑖 )𝑘 (1)
where Prm(Cust i )k is a set of customer parameters that selects the educational online
service; 𝑁𝑖𝑃𝑟𝑚 is number of these parameters; w1 , w2 ,, wn is weight factors each
parameter for choosing optimal educational online service, defined expert, with
wi 1 , wi 0 . The ∑
𝑁𝑖𝑃𝑟𝑚
𝑘=1 𝑤𝑛 × 𝑃𝑟𝑚(𝐶𝑢𝑠𝑡𝑖 )𝑘 is consisting of nine parameters:
i
𝑤1 × 𝑓𝑖𝑛𝑐(𝐶𝑢𝑠𝑡𝑖 ) + 𝑤2 × 𝑓𝑡(𝐶𝑢𝑠𝑡𝑖 ) + 𝑤3 × 𝑏𝑠(𝐶𝑢𝑠𝑡𝑖 ) +
𝐶𝑢𝑠𝑡𝑜𝑚𝑒𝑟𝑖𝐸𝑑𝑂𝑛𝑆 = {+𝑤4 × 𝑘𝑛𝑠(𝐶𝑢𝑠𝑡𝑖 ) + 𝑤5 × 𝑔𝑙𝑜𝑐(𝐶𝑢𝑠𝑡𝑖 ) + 𝑤6 × 𝑔(𝐶𝑢𝑠𝑡𝑖 ) +} (2)
+𝑤7 × 𝑙𝑘𝑛(𝐶𝑢𝑠𝑡𝑖 ) + 𝑤8 × 𝑠𝑒𝑑𝑎(𝐶𝑢𝑠𝑡𝑖 ) + 𝑤9 × 𝑎𝑔(𝐶𝑢𝑠𝑡𝑖 )
where 𝑓𝑖𝑛𝑐(𝐶𝑢𝑠𝑡𝑖 ) is the level of financial income of the i-th customer 𝐶𝑢𝑠𝑡𝑖 ;
𝑓𝑡(𝐶𝑢𝑠𝑡𝑖 ) is the free time of the i-th customer 𝐶𝑢𝑠𝑡𝑖 ; 𝑏𝑠(𝐶𝑢𝑠𝑡𝑖 ) is the basic skills of
the i-th customer 𝐶𝑢𝑠𝑡𝑖 ; 𝑘𝑛𝑠(𝐶𝑢𝑠𝑡𝑖 ) is the level of knowledge in the subject area of
the i-th customer 𝐶𝑢𝑠𝑡𝑖 ; 𝑔𝑙𝑜𝑐(𝐶𝑢𝑠𝑡𝑖 ) is the geographical location of the i-th customer
𝐶𝑢𝑠𝑡𝑖 ; 𝑔(𝐶𝑢𝑠𝑡𝑖 ) is the language knowledge of the i-th customer 𝐶𝑢𝑠𝑡𝑖 ; 𝑙𝑘𝑛(𝐶𝑢𝑠𝑡𝑖 ) is
the goal to study of the i-th customer 𝐶𝑢𝑠𝑡𝑖 ; 𝑠𝑒𝑑𝑎(𝐶𝑢𝑠𝑡𝑖 ) is the self-education ability
of the i-th customer 𝐶𝑢𝑠𝑡𝑖 ; 𝑎𝑔(𝐶𝑢𝑠𝑡𝑖 ) is the age of the i-th customer 𝐶𝑢𝑠𝑡𝑖 ;
𝑤1 , 𝑤2 , … , 𝑤9 is weight factors each parameter for choosing optimal educational
online service, defined expert, with wi 1 , wi 0 .
i
The total value of the course parameters is determined by the following equation:
𝑁𝑃𝑟𝑚
𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐸𝑑𝑂𝑛𝑆 = ∑𝑝=1
𝑖
𝑐𝑛 × 𝑃𝑟𝑚(𝐶𝑟𝑠𝑖 )𝑝 (3)
𝑖 𝑁𝑃𝑟𝑚
The ∑𝑝=1 𝑐𝑛 × 𝑃𝑟𝑚(𝐶𝑟𝑠𝑖 )𝑝 is consisting of four parameters:
𝐵𝑠𝑂𝑝𝑡
1𝑐 × 𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 ) + 𝑐2 × 𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐸𝑑𝑃𝑟𝑐 (𝐶𝑟𝑠𝑖 ) +
𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐸𝑑𝑂𝑛𝑆 = { 𝑆𝑡𝑓 } (4)
+ 𝑐3 × 𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐴𝑢𝑡ℎ (𝐶𝑟𝑠𝑖 ) + 𝑐4 × 𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 )
𝐵𝑠𝑂𝑝𝑡
where 𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 ) is the parameters of basic course options;
𝐸𝑑𝑃𝑟𝑐
𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠 )
𝑖 is the parameters of educational process of
𝑆𝑡𝑓
es;𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐴𝑢𝑡ℎ (𝐶𝑟𝑠𝑖 ) is the parameters of authority of courses; 𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 ) is
the parameters of staff of courses; 𝑐1 , 𝑐2 , … , 𝑐4 is weight factors each parameter of
the course, defined expert, with с n 1 , сn 0 .
n
𝐵𝑠𝑂𝑝𝑡
The total value of the parameters of basic course options 𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 ) is cal-
culated using the following equation:
𝐵𝑠𝑂𝑝𝑡 𝑘 × 𝑡𝑙(𝐶𝑟𝑠𝑖 ) + 𝑘2 × 𝑠𝑏(𝐶𝑟𝑠𝑖 ) + + 𝑘3 × 𝑡𝑚(𝐶𝑟𝑠𝑖 )
𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 ) = { 1 } (5)
+𝑘4 × 𝑑𝑟(𝐶𝑟𝑠𝑖 ) + 𝑘5 × 𝑐𝑠(𝐶𝑟𝑠𝑖 ) + 𝑘6 × 𝑡𝑝(𝐶𝑟𝑠𝑖 )
where 𝑡𝑙(𝐶𝑟𝑠𝑖 ) is the title of the i-th course𝐶𝑟𝑠𝑖 ; 𝑠𝑏(𝐶𝑟𝑠𝑖 ) is the subject of the i-th
course 𝐶𝑟𝑠𝑖 ; 𝑡𝑚(𝐶𝑟𝑠𝑖 ) is the Themes of the i-th course 𝐶𝑟𝑠𝑖 ; 𝑑𝑟(𝐶𝑟𝑠𝑖 ) is the duration
of the i-th course 𝐶𝑟𝑠𝑖 ; 𝑐𝑠(𝐶𝑟𝑠𝑖 ) is the cost of the i-th course 𝐶𝑟𝑠𝑖 ; 𝑡𝑝(𝐶𝑟𝑠𝑖 ) is the
type (group or individual) of the i-th course 𝐶𝑟𝑠𝑖 ; 𝑘1 , 𝑘2 , … , 𝑘6 is weight factors each
parameter of the course, defined expert, with k i 1 , ki 0 .
i
The total value of the parameters of educational process 𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐸𝑑𝑃𝑟𝑐 (𝐶𝑟𝑠𝑖 ) is calcu-
lated using the following equation:
𝑓1 × 𝑖𝑡(𝐶𝑟𝑠𝑖 ) + 𝑓2 × 𝑐𝑙 (𝐶𝑟𝑠𝑖 ) + 𝑓3 × ℎ𝑤(𝐶𝑟𝑠𝑖 )
+𝑓4 × 𝑡𝑠(𝐶𝑟𝑠𝑖 ) + 𝑓5 × 𝑐𝑛(𝐶𝑟𝑠𝑖 ) + 𝑓6 × 𝑐𝑑(𝐶𝑟𝑠𝑖 )
𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐸𝑑𝑃𝑟𝑐 (𝐶𝑟𝑠𝑖 ) = (6)
+𝑓7 × 𝑐𝑟𝑡(𝐶𝑟𝑠𝑖 ) + 𝑓8 × 𝑖𝑛𝑎𝑐(𝐶𝑟𝑠𝑖 ) + 𝑓9 × 𝑤𝑡(𝐶𝑟𝑠𝑖 )
{ 10 × 𝑡𝑐(𝐶𝑟𝑠𝑖 ) + 𝑓11 × 𝑡𝑡(𝐶𝑟𝑠𝑖 ) + 𝑓12 × 𝑎𝑑𝑝(𝐶𝑟𝑠𝑖 )}
+𝑓
where 𝑖𝑡(𝐶𝑟𝑠𝑖 ) is the intensity of training; 𝑐𝑙 (𝐶𝑟𝑠𝑖 ) is the conditions of learning;
ℎ𝑤(𝐶𝑟𝑠𝑖 ) is the giving and checking homework; 𝑡𝑠(𝐶𝑟𝑠𝑖 ) is the level of providing
support teacher; 𝑐𝑛(𝐶𝑟𝑠𝑖 ) is the number of classes; 𝑐𝑑(𝐶𝑟𝑠𝑖 ) is the duration of clas-
ses; 𝑐𝑟𝑡(𝐶𝑟𝑠𝑖 ) is the course type (online / offline); 𝑖𝑛𝑎𝑐(𝐶𝑟𝑠𝑖 ) is the individual ac-
count (24/7, question / answer, feedback); 𝑤𝑡(𝐶𝑟𝑠𝑖 ) is the type of work (work in a
group or individual); 𝑡𝑐(𝐶𝑟𝑠𝑖 ) is the trial classes; 𝑡𝑡(𝐶𝑟𝑠𝑖 ) is the test after each stud-
ied topic; 𝑎𝑑𝑝(𝐶𝑟𝑠𝑖 ) is the additional possibilities;
𝑓1 , 𝑓2 , … , 𝑓12 is weight factors each parameter of the course, defined expert, with
fi 1 , fi 0 .
i
The total value of the parameters of authority of courses𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐴𝑢𝑡ℎ (𝐶𝑟𝑠𝑖 ) is calcu-
lated using the following equation:
𝑎 × 𝑣𝑟(𝐶𝑟𝑠𝑖 ) + 𝑎2 × 𝑙𝑠𝑛(𝐶𝑟𝑠𝑖 ) + 𝑎3 × 𝑐𝑟(𝐶𝑟𝑠𝑖 )
𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐴𝑢𝑡ℎ (𝐶𝑟𝑠𝑖 ) = { 1 } (7)
+𝑎4 × 𝑐𝑣(𝐶𝑟𝑠𝑖 ) + 𝑎5 × 𝑟𝑎𝑛𝑘(𝐶𝑟𝑠𝑖 )
where 𝑣𝑟(𝐶𝑟𝑠𝑖 ) is the reviews of previous visitors; 𝑙𝑠𝑛(𝐶𝑟𝑠𝑖 ) is the availability of a
license; 𝑐𝑟(𝐶𝑟𝑠𝑖 ) is the recognition of certificates by firms; 𝑐𝑣(𝐶𝑟𝑠𝑖 ) is the certificate
validity; 𝑟𝑎𝑛𝑘(𝐶𝑟𝑠𝑖 ) is the rank among other courses; 𝑎1 , 𝑎2 , … , 𝑎5 is weight factors
each parameter of the course, defined expert, with ai 1 , ai 0 .
i
The total value of the parameters of course staff 𝐶𝑜𝑢𝑟𝑠𝑒𝑖𝐴𝑢𝑡ℎ (𝐶𝑟𝑠𝑖 ) is calculated us-
ing the following equation:
𝑆𝑡𝑓 𝑠 × 𝑞𝑡(𝐶𝑟𝑠𝑖 ) + 𝑠2 × 𝑡𝑒(𝐶𝑟𝑠𝑖 ) +
𝐶𝑜𝑢𝑟𝑠𝑒𝑖 (𝐶𝑟𝑠𝑖 ) = { 1 } (8)
𝑠3 × 𝑡𝑟(𝐶𝑟𝑠𝑖 ) + 𝑠4 × 𝑣𝑡𝑟(𝐶𝑟𝑠𝑖 )
𝑞𝑡(𝐶𝑟𝑠𝑖 ) is the teacher qualification; 𝑡𝑒(𝐶𝑟𝑠𝑖 ) is the teacher experience; 𝑡𝑟(𝐶𝑟𝑠𝑖 ) is
the teacher rating; 𝑣𝑡𝑟(𝐶𝑟𝑠𝑖 ) is the reviews of previous visitors about the teacher;
𝑠1 , 𝑠2 , … , 𝑠4 is weight factors each parameter of the course, defined expert, with
s i 1 , si 0
i
The rating of educational online services according given parameters for research is
determined by the equation (9):
𝑖 𝑁𝑃𝑟𝑚 𝑖 𝑁𝑃𝑟𝑚
∑𝑘=1 𝑤𝑛 ×𝑃𝑟𝑚(𝐶𝑢𝑠𝑡𝑖 )𝑘 +∑𝑝=1 𝑐𝑛 ×𝑃𝑟𝑚(𝐶𝑟𝑠𝑖 )𝑝
𝑅𝑖𝐸𝑑𝑂𝑛𝑆 = (9)
𝑁 𝐸𝑑𝑂𝑛𝑆
𝑃𝑟𝑚(𝐶𝑢𝑠𝑡𝑖 )𝑘 is the customer parameters value for optimal educational online service
selection; 𝑃𝑟𝑚(𝐶𝑟𝑠𝑖 )𝑝 is the course parameters value that customer which customer
has specified for the course selection; 𝑁 𝐸𝑑𝑂𝑛𝑆 is the number of courses.
Efficiency of optimal educational online service selection is calculated using this
equation:
𝑝 𝑁
𝐸𝑓 = 𝑁 −𝑁 , 𝑁𝑝 ≠ 𝑁𝑛 (10)
𝑝 𝑛
where 𝑁𝑝 is the number of courses, which meet the requirements of more than half of
the requirements; 𝑁𝑛 is the number of courses, which does not fully fit the user's
requirements.
Consequently, 𝐸𝑓 ∈ [0, 1].
The scheme of advices system for the optimal online educational service selection is
shown in Fig. 5.
Customer
Requirements requirements Customer parameters
analyzer
Analyzer of Rating of Optimal
requirements educational educational
Customer Requirements for educational
Course parameters online services service
online services
Educational online
services info
DB
courses
Figure 5. The scheme of advices system for the secure and optimal online educational service
selection
4 Conclusion
An important problem of self-education was considered in this paper. Modern busi-
nesses require group efforts, cooperation, and an effective communication from em-
ployees. At the same time, interactive teaching methods allow each student to express
his personal knowledge, and some personal traits. A self-education plays an important
part in building a human knowledge capital, and it has many benefits. It gives an op-
portunity to manage their own time, determine the range of interests in any location.
Online platforms provide online courses of leading universities and organizations.
Courses include recorded video lectures, auto-graded and peer-reviewed assignments,
and community discussion forums. Prometheus online educational platform is suc-
cessful for the Ukrainian consumers, because the materials are free and presented in
Ukrainian, video lectures, tests and forums are available round the clock. The courses,
available on the site, cover a wide range of human interests. The most popular courses
are: programming, psychology, information management, economics, communication
tools, policy, marketing, foreign languages, data visualization, analysis and business.
The courses are available in Ukrainian, English and Russian. There are already some
paid courses there. The most popular specializations are: a machine education, science
of information, project management, business foundations, Big Data. Online Future
Learn platform includes some courses in English. Popular online course categories
are: languages and cultures, business and management, science, math and technology,
health and psychology, creative arts and media. Online learning offers a new way to
explore subjects you're passionate about. Online educational platforms and channels
on YouTube are gaining popularity day by day and expand their content. It can be
argued that this self-education has many chances to replace full-fledged university
studies. The Ukrainian-speaking consumers should know English. However, re-
sources for studying it are more than enough. Online self-education has no age or
financial restrictions. It can be argue that online self-education is the future one.
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