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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Structural Modeling of Technical Text Analysis and Synthesis Processes</article-title>
      </title-group>
      <contrib-group>
        <aff id="aff0">
          <label>0</label>
          <institution>Lviv Polytechnic National University</institution>
          ,
          <addr-line>Lviv</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2074</year>
      </pub-date>
      <fpage>0000</fpage>
      <lpage>0003</lpage>
      <abstract>
        <p>The article presents the application of generative Grammars in linguistic modeling. Description of sentence syntax modeling is used to automate the processes of analysis and synthesis of natural texts.</p>
      </abstract>
      <kwd-group>
        <kwd />
        <kwd>Generative grammar</kwd>
        <kwd>structured scheme sentences</kwd>
        <kwd>computer linguistic system</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>-</title>
      <p>
        A feature of the development of modern Ukrainian scientific and technical
terminology is the increased interest in its authenticity, since historically; this terminology has
become inaccessible to users [
        <xref ref-type="bibr" rid="ref1 ref2 ref3 ref4">1-4</xref>
        ]. From official dictionaries and textbooks this
terminology was withdrawn, and the forbidden dictionaries got to special storages of
libraries, and them issued only by special permission [
        <xref ref-type="bibr" rid="ref12">12-16</xref>
        ]. To date, the dictionaries
of 1920-1930 came in single copies, or did not come at all-they are lost or destroyed.
Even the existence of many terminological dictionaries is now known only to a
narrow circle of specialists [
        <xref ref-type="bibr" rid="ref10 ref11 ref2 ref5 ref6 ref7 ref8 ref9">2, 5-11, 17-20</xref>
        ]. It is estimated that about 90 % of new words
appearing in each language are terms. Modern Ukrainian terminology is also actively
updated with new units-mainly borrowings from English or words-tracing from
Russian. Despite the fact that the Ukrainian language partially assimilates other people's
words, still a large number of borrowed words poses a threat to the clarity of the
national term system and often negatively affects the speed of the educational process. It
is gratifying that in some new borrowings in Ukrainian terminology have already
arisen correspondence, for example: трастове товариство – довірче товариство,
апроксимація – наближення, детектор – виявляч, etc. If this trend continues, the
majority of "fashionable" borrowings will go into passive reserve - will remain
meaningful necessary terms [20]. From one language to other terms are not translated like
ordinary words. The optimal way is to translate the terms: "concept - &gt; Ukrainian
term" and not "foreign language term - &gt; Ukrainian term", from which language the
translation would not occur (V. Morgunyuk). That is, the search for an analogue term
begins with the analysis of the properties of a new concept. Unfortunately, in most
cases, the translation of terms into Ukrainian occurs by "tracing paper" [20-27].
2
      </p>
    </sec>
    <sec id="sec-2">
      <title>Connection of the Problem with Important Scientific and</title>
    </sec>
    <sec id="sec-3">
      <title>Practical Tasks</title>
      <p>To date, there are many different modifications of morphological analyzers, mainly
Russian, which are successfully used in a number of industrial software products.</p>
      <p>Parsers LLC "Diktum" use analyzers of Russian and English language for
morphological analysis and extraction of grammatical information about word forms before
analysis. The Russian spelling and grammar control system Propis 4.0 was the first
industrial application of the Russian morphological analyzer. The system uses
socalled "first clone", where it was then sold and used now the approach to the pages of
the dictionary, however, was not yet fixed identifiers (numbers) of tokens, it was not
possible to synthesize the ID token, and had no concept of the ID forms of the word.
Extended additive grammatical descriptions, which are still present in the structure of
grammatical information, were used to describe word forms.</p>
      <p>
        The technology of morphological analysis of the Ukrainian language is now
working on the search engine &lt; META&gt;. There you can also test the morphological
analyzer in the on-line mode [19]. The process of development of modern society is
characterized by the constantly increasing role of information technologies in science,
production and management. In recent years, the volume of information flows and the
complexity of orientation in information resources have increased significantly, which
has led to the need to find new ways of storing, presenting, formalizing, systematizing
and processing information in computer systems [27]. Traditional technologies in the
new conditions do not solve the problems of navigation of information resources,
providing access to information, search for files and documents at the proper level.
One of the results of research conducted in recent years to overcome these difficulties
was the emergence of ontological technologies and their use in information systems
[28]. At its core, domain ontology is a formal model of the structure of domain
concepts [29]. In Gruber's famous formulation [27], ontology is defined as "a formal
specification of conceptualization that takes place in some domain context". Under
conceptualization we understand representations of the subject area through the
description of the set of concepts (concepts) of the subject area and the relations
(relations) between them. By creating ontology, a formalized representation of the
structure of the subject area is formed agreed between specialists [
        <xref ref-type="bibr" rid="ref13">30</xref>
        ]. The purpose of the
work is to develop an intelligent system for modeling the processes of analysis and
synthesis of technical texts, namely: checking the correctness of the use of terms in
articles according to well-known rules and the possibility of constructing ontology of
these articles. The created system is based on morphological analysis algorithms,
namely: it is based on a modified morphological analyzer. The difference between the
created system and the existing morphological analyzers is its narrow specialization in
the search for terms in technical texts, in particular articles. The object of this work is
morphological systems-text analyzers. The subject of the study is the algorithms of
morphological analysis, stemming and automatic ontology construction. The
theoretical value of the work lies in the analysis of the known algorithms for morphological
analysis, stemma and methods for building ontology. The practical significance of the
results is the implementation of the composition of methods of morphological
analysis and stemming in order to improve the efficiency of the search for incorrect words
and phrases in the text and the possibility of constructing ontology.
3
      </p>
    </sec>
    <sec id="sec-4">
      <title>Analysis of Recent Research and Publications</title>
      <p>
        At the present stage it is possible to trace 5 approaches to the solution of problems of
ordering of the Ukrainian scientific and technical terminology [
        <xref ref-type="bibr" rid="ref10 ref11 ref2 ref3 ref4 ref5 ref6 ref7 ref8 ref9">2-11, 17, 19-20, 27</xref>
        ].
 The 1st approach is formal. The main thing for him is a quantitative indicator-the
earliest publication of the dictionary. Haste in terminology is not helpful – it is at
best. In the worst-shakes terminosystem, gives wrong reference points for users.
"Terminology is not a field for gaining fame, for Cossacks. This... but ant
legendary labor, most often quite underestimated" (A. Vovk).
 The 2nd approach is ethnographic. It is based on the idea of reviving the national
terminology of the Institute of Ukrainian Scientific Language. The creators of
dictionaries seek to return to modern Ukrainian terminology almost all the terms of
the beginning of the century.
 The 3rd approach is conservative. Its supporters advocate the preservation of
Ukrainian scientific and technical terminology in the form that it acquired during
the Soviet period. This is the so-called "real language" principle.
 The 4th approach is international. It is characterized by the introduction into
Ukrainian scientific and technical terminology of a large number of borrowings
from Western European languages, especially from English.
 The 5th approach is moderate. It provides for the ordering of Ukrainian scientific
and technical terminology taking into account historical, national, political factors
and the development of its optimal variant [20].
      </p>
      <p>
        Modern Ukrainian terminologists deeper than their predecessors of the beginning of
the century, develop the theory of the term as a language sign, the theory of
terminology as a subsystem of the General literary language [
        <xref ref-type="bibr" rid="ref14 ref15 ref16 ref17 ref18 ref19 ref20">31-37</xref>
        ].
      </p>
      <p>It is believed that terminology, as well as General literary language, should be
characterized by such factors: perfection, economy, consonance. Under the perfection
of terminology, the researcher understands its clear grammatical structure, logic and
motivation of terms; under economy - its informativeness, ease of study, shortness of
time-units; under consonance-euphony, articulation and spelling of terms [20].</p>
      <p>
        The following time requirements are formulated [
        <xref ref-type="bibr" rid="ref21 ref22 ref23 ref24">38-41</xref>
        ]:
1. Content is the exact correspondence of the word to the concept, transparent internal
form of the term;
2. Plasticity, or flexibility-the ability to form derivative terms;
3. Language perfection-brevity, euphony, ease of memorization;
4. Compliance with international standards.
      </p>
      <p>According to such criteria, L. Petrukh, B. knight and other researchers are advised to
evaluate terminological units. When determining the basic principles of term
formation, Ukrainian terminologists rely on the experience of European science in this
matter – such well-known terminologists as E. Wuster, D. S. Lotte, O. O. reformed, S.
Bally and others worked on the development of the image of the ideal term. Given the
foregoing, and taking into account the peculiarities of Ukrainian terminology in recent
decades, one can identify current problems, the solution of which will depend on the
direction of further development of Ukrainian scientific language [20]. The
peculiarity of the development of Ukrainian scientific and technical terminology is the
increased interest in the terminological achievements of the Taras Shevchenko
Scientific society and the Institute of Ukrainian Scientific Language [20].</p>
      <p>
        Automatic generation of hypotheses about paradigms of change of unfamiliar
words gives the chance to automate process of filling of bases. In the transition to a
new subject area, the question arises about the incompleteness of the morphological
dictionary. Each subject area uses its own vocabulary. In this regard, there is a
question of replenishment of dictionaries. This process can be automated if the available
morphological analysis module allows predictions of lexical parameters of unfamiliar
words. To do this, it is necessary to select all the words that are not in the existing
morphological dictionary and perform an analysis on them with a forecast. The results
of the analysis, is the tuple of the word form
 f nf , r, Pconstt (r, s)  Pvar (r, s)  ,
(1)
where f nf  snf , r, Pvar (r, s)  is the token normal form, r is part of speech word
forms, s і snf is the analyzed token (word string) and the normal form token, and P is
parameter sets. According to the results of the analysis, we can combine all words that
have the same normal-form tokens into a single hypothesis. In the course of
hypotheses, several strong but intuitively correct positions can be used [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. There are several
variants of algorithms stemma, which are characterized by their precision and
performance [
        <xref ref-type="bibr" rid="ref25 ref26 ref27 ref28 ref29">42-46</xref>
        ].
      </p>
      <p>
        Search in the table. This algorithm uses the principle of search on the table in
which all possible variants of words and their forms after stemming are collected
[4751]. The advantages of this method are the simplicity, speed and convenience of
handling exceptions to language rules. The disadvantages include the fact that the search
table must contain all forms of words: that is, the algorithm will not work with new
words (and as you know, "living" languages are constantly updated with new words)
and the size of such a table can be significant. For languages with a relatively simple
morphology, such as English, the size of the search table is quite modest, but in
agglutinative languages, such as Turkish, the number of variants of words with one root
can go to hundreds. This algorithm is based on the rules by which you can shorten a
word. If we take the example of the search algorithm on a table, these rules can be as
follows: the word ends in льний - cut off from the word ьний; the word ends with
льна – intercept ьна; the word ends with льне – intercept ьне; the word ends with
льним – intercept ьним.
The cut off endings and suffixes. The number of such rules stemming is much less
than with all word forms, but because the algorithm is quite compact and productive.
The above 4 rules correctly work out the following adjectives:
However, the algorithm may make false conclusions and distort the shape stemming.
For example, the word пальне will turn into пал instead of the correct form пальн.
Therefore, given the peculiarities of the language, the set of rules for cutting off
endings and suffixes can be quite complex. The disadvantages should also include the
exception handling, when the base words have a variable shape. For example, the
words бігом and біжу must-have after stemma the same біг, but a simple cut off of
the end it is not possible to do. The algorithm is forced to take into account such
situations-this leads to a complication of the rules, and in the end negatively affects the
efficiency. To solve this problem in the created system we use a comprehensive
approach based on the definition of the basis of the word by lemmatization. The first
step of this algorithm is to determine the parts of speech in the speech, the so-called
POS tagging. In the second step, by the word is way stemming according to the rules
of the language. That is, the words "fuel" and "welcome" have to go through different
chains of rules because "fuel" is a noun and "welcome" is an adjective. Theoretically,
stemming algorithms based on lemmatization should have a very high quality and a
minimum percentage of errors, but they are very dependent on the correctness of the
recognition of parts of speechv[
        <xref ref-type="bibr" rid="ref35 ref36 ref37 ref38 ref39 ref40 ref41 ref42">52-59</xref>
        ].
      </p>
      <p>
        One of the modern variants of realization of wordless morphology in pure form is
Porter stemmer. In it, the string supplied to the input is checked for the presence of
the specified Postfix, and the Postfix is checked in a certain order, and some of the
Postfix can be combined. All that is left after a successive "drop" is declared a stem.
Depending on the found Postfix, one or another part of speech can be attributed to the
word, although in the vast majority of tasks this is not necessary. The algorithm is
extremely simple, has a very high speed, but gives a large percentage of errors. In
addition, the Postfix division is largely controversial. Also, the algorithm produces a
single variant of parsing, completely hiding the homonymy of words. Porter's
algorithm takes very little account of the fact that for different parts of speech, and even
for different paradigms, different letters may precede the Postfix. This fact is used in
the stemmer morphological analysis system, where not only the postfixes themselves
are stored, but also the two previous letters of the pseudo base. The letter and Postfix
combinations themselves are stored as a right-to-left finite state machine [
        <xref ref-type="bibr" rid="ref43 ref44 ref45 ref46 ref47 ref48 ref5">5, 60-65</xref>
        ]. A
significant advantage of wordless morphologies is that they can give the result for any
words that occur in the text, which is very convenient when analyzing texts with an
unfamiliar subject area or containing many non-literary or rarely used words.
However, the correctness of the results obtained is at the level of 90-95%. This has led to the
abandonment of wordless morphologies in tasks where the accuracy of the analysis
should prevail over its completeness, and to the transition to the use of dictionary
morphologies in tasks such as machine translation and dialogue systems. However, in
practice, there are a large number of problems solved by statistical methods, in which
an approximate knowledge of the relationships between words is quite sufficient. This
is the task of categorization, information retrieval, partly-the task of abstracting, a
number of other tasks. The methods of wordless morphologies are actively used in
dictionary morphologies to predict the normal form and set of parameters of words
that are absent in the morphological dictionary, as well as to expand the dictionary
[
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. Stemming variants for the Ukrainian language exist and are used as part of
commercial search engines. Unfortunately, there is no free implementation of such
algorithms. It should be noted that certain steps in this direction have already been made,
in particular the Drupal module for the Ukrainian language, which is under
development and the search engine “&lt;META&gt;", which uses a modified stemming method to
cut off endings and suffixes of unknown words, so the emergence of a
noncommercial stemming algorithm for the Ukrainian language is a matter of time [19].
      </p>
      <p>Zipf's first law ("rank-frequency"). Another feature of the created system is the
ability to determine the keywords of articles and compare them with the keywords
specified by the author. This was achieved by using a method based on Zipf's law.</p>
      <p>Let's measure the number of occurrences of each word in the text and take only one
value from each group having the same frequency. Arrange the frequency as they
decrease and number, the serial number of the frequency is called the frequency rank
(denote ri word rank i ). The words that are most common will have rank 1, followed
by 2 and so on. Then it is obvious that the probability of encountering an arbitrary,
pre-selected word will be equal to the ratio of the number of occurrences of this word
to the total number of words in the text ( ni is the number of occurrences of words and,
|N| is number of words in the text).</p>
      <p>CIPF found the following pattern: the product of the probability of finding a word in
the text and the rank of frequency, is a constant number (C).</p>
      <p>p  ni</p>
      <p>
        | N | .
ni  ri  C .
| N |
(2)
(3)
The law shows that the prevalence of a word in a text varies by hyperbole, depending
on the number of occurrences. For example, the second of the words used is about
half as common as the first, the third is three times less common than the first, and so
on. The meaning of the constant varies in different languages, but within the same
language group remains roughly the same, whatever text we take. George Zipf and
other researchers found that the hyperbolic distribution is subject not only to all
natural languages of the world, but also other phenomena of a social and biological nature:
the distribution of scientists by the number of articles published by them, US cities by
population, population by income in capitalist countries, and others. Zipf's laws allow
finding key words [
        <xref ref-type="bibr" rid="ref9">9</xref>
        ]. Let us use Zipf's first law and plot the dependence of rank on
frequency. Studies show that the most significant words for the text lie in the middle
part of the graph (Fig. 2). This fact has a simple justification. Words that happen very
often, mostly turn out to be official. It is also rare to find words that in most cases do
not have a decisive meaning for the information that is submitted in the article. The
quality of the selection of significant words depends on the width of the range. If you
take a large width of the range, the keywords will get auxiliary words; if you set a
narrow range - you can lose the semantic terms. Therefore, in each case it is necessary
to use a number of heuristics to determine the width of the range, as well as
techniques that reduce the impact of this width.
One of the ways, for example, is the preliminary exclusion of words from the text
under study, which initially can not be meaningful and, therefore, is "noise". Such
words are called neutral or stop (stop words). For Ukrainian text stop words can be all
prepositions, particles, personal pronouns. There are other ways to improve the
accuracy of assessing the significance of words [
        <xref ref-type="bibr" rid="ref49 ref50 ref51 ref52 ref53 ref54 ref9">9, 66-71</xref>
        ]. Some words can occur in
almost all documents of a certain collection and, accordingly, have little influence on
the document belonging to a particular category, and therefore not be key to this
document. Therefore, it is obvious that, considering the entire collection of documents,
we will increase the informativeness of the selection of keywords [
        <xref ref-type="bibr" rid="ref55 ref56 ref57 ref58 ref59 ref60">72-77</xref>
        ].
      </p>
      <p>
        The methods of constructing domain ontology’s are as follows [
        <xref ref-type="bibr" rid="ref13 ref14 ref15 ref16 ref17 ref18 ref19 ref20 ref21 ref22 ref23 ref24 ref25 ref26 ref27 ref28 ref29 ref30 ref31 ref32 ref33 ref34 ref35 ref36 ref37 ref38 ref39 ref40">29-57</xref>
        ]:
 Building ontology’s by converting XML-like documents;
 Using ready-made dictionaries;
 Application of linguistic analysis of texts written in natural language;
 Application of clustering and analysis of formal concepts.
      </p>
      <p>
        Automatic extraction of knowledge from monological texts in order to build an
ontology involves not only the identification of terms, but also the search in the text of
knowledge about these terms. This means that in order to describe the semantic
structure of terminology, it is necessary to recognize both the terms and the semantic
relations between the terms in the text [
        <xref ref-type="bibr" rid="ref61">78-83</xref>
        ].
4
      </p>
    </sec>
    <sec id="sec-5">
      <title>Highlighting Problems</title>
      <p>
        Considering the possibility of automating various stages of automatic ontology
generation [
        <xref ref-type="bibr" rid="ref13 ref14 ref15 ref16 ref17 ref18 ref19 ref20 ref21 ref22 ref23 ref24 ref25 ref26 ref27 ref28 ref29 ref30 ref31 ref32 ref33 ref34 ref35 ref36 ref37 ref38 ref39 ref40">29-57</xref>
        ], we came to the following conclusions. The preparatory stage and the
serialization stage can be fully automated in all cases, since these processes are
completely trivial and are reduced to primitive operations on string data or converting tree
data structures into some XML-like format. The analysis stage can also be effectively
automated. The construction of concepts, taxonomic relations between concepts and
relations of belonging of instances to classes is automated using all the methods of
ontology generation described above. The possibility of fully automating the
construction of non-taxonomic relations is still an open question; in addition, the
available methods are dependent on the language of text data that are processed. The
question of full automation of concept generation is also open, especially it concerns the
methods of automatic ontology generation based on the use of hierarchical clustering
and formal analysis of concepts. This problem is proposed to be solved using a
situational approach with partial use of the dictionary [
        <xref ref-type="bibr" rid="ref25">42, 82-92</xref>
        ].
      </p>
      <p>
        The validation stage to some extent requires the intervention of an expert. An
exception is when ontology is created based on a set of XML documents or a subset of
entries in a dictionary or thesaurus. In this context, tools like WordNet undoubtedly
deserve special attention because of the great possibilities for automating validation.
Despite the fact that WordNet has too broad a purpose, and can not be adapted to a
specific subject area of human activity, the use of this method for validation and
harmonization of ontology’s is an interesting topic for further development. The
expansion stage also requires special attention when automating. This is especially true in
the case of its reduction to the harmonization and merging of ontology’s. The process
of merging ontology’s is closely related to reconciliation. Currently, there are a
number of methods to implement it for two input ontology’s, however, the simultaneous
merging of several ontology’s remains an open question. This problem can be solved
by sequential merging, but in such a case the final ontology will depend on the choice
of the merge order. In some cases, the addition of new entities and relationships to the
ontology may occur in a method different from the one used at the initial stage [
        <xref ref-type="bibr" rid="ref27">44</xref>
        ].
5
      </p>
    </sec>
    <sec id="sec-6">
      <title>Statement of Purpose</title>
      <p>
        The purpose is to study problems of automation verify correct use of terms in the text,
intellectual definitions of the key words of articles, development of a system for
modeling processes of analysis and synthesis of texts of a technical nature, namely: check
the correct use of terminology in articles according to the conventional rules and
creation of a list of key words of articles, with the possibility of verifying the correctness
of the list mentioned by the author keywords of the article. The created system is
based on the algorithms of morphological analysis; it is based on a modified
morphological analyzer, built on the principles of stemming and lemmatization. Therefore,
the result will be the development of an intelligent system for modeling the processes
of analysis and synthesis of technical text. Before designing an intelligent system for
modeling the processes of analysis and synthesis of technical text, you must first build
a tree of system goals, which will provide the opportunity to perform consistent and
correct actions in the design of an intelligent system [
        <xref ref-type="bibr" rid="ref12 ref4">4, 12, 14, 18, 21-23, 25-26, 28</xref>
        ].
      </p>
      <p>
        The main goal is to develop an intelligent system for modeling the processes of
analysis and synthesis of technical text [
        <xref ref-type="bibr" rid="ref12 ref4">4, 12, 14, 18, 22-23</xref>
        ]. Achieving the main
goal is possible only if all sub-goals are met. The main goal of the developed system
is divided into four sub-goals.
      </p>
      <p>The first sub-goal is "read text". The goal is to read the input data on which all
subsequent operations will be performed. The second sub-goal is "parse text". This
subgoal is divided into two sub-goals: "find stop words" and "delete stop words". The
goal is to "cleanse" the input text of "noise" (words that carry no semantic
information). The third sub-goal is "perform analysis of the text and individual words""
this goal is divided into four sub-goals: "find the wrong term in the text" ""work out
the text and keywords" "work out the term" and "perform morphological analysis of
the term". Pid "Process text and keywords" is divided into four sub-goals: "Build an
alphabetical-frequency dictionary", "Find keywords specified by the author",
"Identify keywords and Verify the correctness of the selected keywords". Performing these
four sub-goals is necessary to search for keywords specified by the author of the
article, search for keywords in the text by analytical method and compare the results in
order to verify the correctness of the keywords specified by the author.
The sub-goal "work out the term" is divided into two sub-goals: "break the term into
parts of speech", and "find a replacement for the wrong term". Achieving these goals
guarantees the preparation of the found term before morphological analysis. The
"perform morphological analysis of the term" sub-goal is divided into six sub-goals:
"determine morphemes", "determine temporal form (for verbs)", "determine person (for
verbs)", " determine gender (for verbs and nouns)", "determine number (for verbs,
nouns and adjectives)", "determine case (for nouns and adjectives)". Achieving these
sub-goals ensures that the morphological analysis process, which is one of the key
processes necessary for the functioning of the entire system, is carried out.</p>
      <p>"Perform ontology construction" is divided into four sub-goals: "perform
preliminary preparation of the text", "Define ontology classes", "Determine the relationship",
"Perform the construction of the class hierarchy". Achieving these sub-goals ensures
that the ontology building process is completed.</p>
      <p>The sub-goal "perform synthesis of new terms" is divided into two sub-goals:
"change morphemes to the correct ones", "insert a new term into the text".
Achievement of these goals provides replacement of morphemes of term on new, according to
the received characteristics of the text entered by the user and insertion back into the
text of the "new" corrected correct term. Achieving the main goal is impossible
without consistent implementation of each of the sub goals.
6</p>
    </sec>
    <sec id="sec-7">
      <title>Analysis of the Obtained Scientific Results</title>
      <p>The context diagram is the first in the hierarchy of diagrams of IDEF0 notation, it
shows the functioning of the system as a whole (Fig. 4) [13, 15-16, 24]. This model is
described from the user's point of view.
From the point of view of the user the functioning of this system is as follows:
 System resources are Administrator with rights to edit system configuration and
various analysis rules, moderator with rights to edit databases, User and
programming environment.</p>
      <p>Fig. 5 shows the first step of decomposition. It is possible to examine in more detail
the processes of the system, namely "Read the text", "perform text parsing", "analyze
the text and individual words" and "perform synthesis of new terms". The "read text"
process is the first of the processes running on this system. The input data for this
process is the text entered by the user, namely: an article of a technical nature. This
text is processed by the programming environment and passed for further processing
by the "parse text" and "synthesize new terms" processes».
Fig. 6 shows a data flow diagram. This diagram is the final decomposition step of The
"parse text" process. It shows the processes of data exchange between the works
"Find stop words", "Discard stop words" and the drive "Database of terms and parts
of speech". At the input of the work "Find stop words" the text entered by the user is
fed, over which stop words search operations are performed, then the found stop
words are transferred to the work "Discard stop words", where they are removed from
the text and added to the drive "Database of terms and parts of speech" provided that
such words are not there. At the output of the work "Discard stop words", we get the
text "cleared" of "noise", which is passed on to perform the following operations.</p>
      <p>Fig.7. shows the decomposition of the IDEF0 process "Perform analysis of text and
individual words". The input of the processes "find the wrong term in the text" and
"work through the text and keywords" is submitted in the form of text that was
worked out by the previous process "perform text parsing". Further - "Find the wrong
term in the text", which is guided by the rules of Ukrainian spelling, search in the text
of the wrong terms. At the output of this process, we obtain data in the form of a word
or phrase (term), which is then transmitted for processing by the process "Work
term".
Fig. 8 shows a flow chart that is a decomposition of the process "Process text and
keywords". This diagram consists of the processes: "Build an alphabetical-frequency
dictionary for the resulting text", "Find keywords specified by the author", "Identify
keywords", "Check the correctness of the selected keywords" and the drive
"Alphabetical-frequency dictionary". At the input of the works "Build an
alphabeticalfrequency dictionary for the received text and Find the keywords specified by the
author" the text worked out by the previous process is submitted. Work "Find
keywords specified by the author" searches for keywords specified by the author
according to the rules of registration of articles. At the output of this work we get data in the
form of found keywords.</p>
      <p>The process "Build an alphabetical-frequency dictionary for the received text" fills
the drive "Alphabetical-frequency dictionary" with words and the frequency of their
use in the text submitted for input. At the output of the work "Build an
alphabeticalfrequency dictionary for the received text" we get an unchanged source text, which is
then transmitted for processing by the work "Define keywords". The process "Define
keywords" receives the input text and on the basis of the existing in the drive
"Alphabetical-frequency dictionary" statistical data performs the formation of a list of
keywords for the input text. Further, these keywords and keywords obtained as a result of
the work "Find keywords specified by the author" are transmitted for processing by
the work "Check the correctness of the specified keywords". Process "to check the
accuracy of the key words" performs a comparison specified by the author key words
with key words found in the received text. At the output of the work "Check the
correctness of the specified keywords" we get the result of the check and the list of
keywords found by the system based on statistical data.</p>
      <p>Fig. 9 shows a diagram of data flows, which is a decomposition of the process
"Work time". This diagram consists of the following works: "Break the term into
parts of speech", "Find a replacement for the" wrong "term" and accumulators "term
analysis Rules", " Base of terms and parts of speech».
At the input of the processes "Break the term into parts of speech" and "Find a
replacement for the wrong term" data is submitted in the form of terms found as a result
of the process "Find the wrong term in the text". The work "Break the term into parts
of speech", based on the rules stored in the storage "Rules of analysis of the term", is
divided if the term-a phrase, and the classification of individual words into parts of
speech. Only the system Administrator has the rights to edit and add new rules. At the
output of the work "break the term into parts of speech" we get a List of words
classified by parts of speech, transferred to the next process for processing.</p>
      <p>Process "Find a replacement for the" wrong "term" search "wrong" term in the text
based on the data contained in the drive "Database of terms and parts of speech". The
rights to change and add data to the "database of terms and parts of speech" are
granted only to the Moderator of the system.
Fig. 10 shows a diagram of data flows, which is a decomposition of the process
"Perform morphological analysis of the term". This diagram consists of the following
processes: "Identify morphemes", "Determine the temporal form of the word(for
verbs)", "Determine personality (for verbs)", "Determine gender(for verbs and
nouns)", "Determine the number(for verbs, nouns and adjectives)", "Determine the
case(for nouns) and the accumulator "database of terms and parts of speech".</p>
      <p>At the input of the procees "Define morphemes" data are submitted in the form of
words classified by parts of speech. Next, based on the data from the drive "rules of
analysis of the term", the selection of morphemes is performed. This was found after
the morpheme is sent to study one or more of the works "to determine the temporal
form of the word (for verbs), Define identity (for verbs)", "to determine the kind (for
verbs and nouns)", "to Determine the number(for verbs, nouns and adjectives)", "to
Determine the case (for nouns)" to determine the current characteristics of the words
term. Then the received data is transferred to the next process for processing.
Fig.11 shows the IDEF0 decomposition of the "execute ontology build" process. The
text of the article for preliminary study is submitted to the input of the process
"Perform preliminary preparation of the text". The prepared text is passed to the "Define
ontology classes" process to define the main classes. Next, a list of certain ontology
classes is passed to the Define relationship process to build relationships. At the
output of this process, we get a list of classes and relations between them; this data is
passed to the process "Perform the construction of a class hierarchy to build a class
hierarchy. Fig.12 shows a diagram of data flows, which is a decomposition of the
process "Determine the relationship". This diagram consists of the works: "Define the
relation "is-a" and "Define the relation" synonym-of".
At the input of the work "Determine the relationship "is-a" data is submitted in the
form of a list of classes formed in the previous step. Next, you define a relationship of
type "is-a" using the appropriate production rule. At the output of the work
"Determine the relation" is-a "list of classes and relations between them of type "is-a". The
Define synonym-of relationship job defines a synonym-of relationship using the
appropriate production rule. At the output of the work "Define the relation"
synonymof" a list of classes and relations between them of type "is-a" and "synonym-of".</p>
      <p>
        Fig. 13 shows a diagram of data flows, which is a decomposition of the process
"perform synthesis of new terms". This diagram consists of the works: "Replace
morphemes with the correct ones", "Insert" a new "term into the text" and the "database of
terms and parts of speech". At the input of the work "Change morphemes to correct"
data are submitted in the form of a list of characteristics depending on the part of
speech of the individual word and the basis of the word, which should change the
wrong term. Further, according to these data, the search is performed and the
corresponding morphemes are added to the bases of individual words of the new term from
the storage "database of terms and parts of speech". The output of work "to Change
the morpheme on the right" re-get "correct" term, which is then transmitted to the
input of the work ", Insert "new" term in the text."
The insert new term in text job adds the newly created term to the text at the position
of the "wrong" term. The output of the work "Insert" a new "term in the text" is one of
the outputs of the whole system, namely, the edited text with the "correct" terms. A
sentence in a natural language text is some statement. A situational approach is often
used to recognize the semantics of statements [
        <xref ref-type="bibr" rid="ref28">45</xref>
        ]. Its use is based on the fact that in
practice it is difficult to create a consistent and complete knowledge base. In
situational semantics, conclusions are drawn only within the context of the situation at the
moment. When you move to a different situation, the knowledge base is audited and
the statements that were derived earlier are not used to derive new ones.
      </p>
      <p>When implementing the situational approach, the idea of L. Wittgenstein is taken
as a basis, with regard to the rules of the use of words: depending on the situation, the
word is used one way or another. In fact, he formulated a pragmatic understanding of
meaning (meaning is interpreted as an adequate response to emerging situations). If at
the same time in the process of reasoning to use logical inference, then, setting
syntactic restrictions in the form of a conjunction of facts, which further describe the
situation, which is characterized by two semantic properties as consistency and
minimalism, you can build a complete and consistent knowledge base. V. N. Vagin [16,
17] explains the idea of L. Wittgenstein as follows . If there are many (contexts)
situations, then we have the following mapping F: SCONT(T), where S is many
situations, CONT (T) is the set of statements forming the content of the idea, which is
denoted by the term T. At the same time y=F(s)  CONT(T) is aspect of content. Thus,
each situation s is associated with some element of the content of y, which
corresponds to our intuition: when we use some content, we realize the incorporation of its
content (sometimes we take everything from it, and sometimes only some part).
Therefore, we seem to react to the situation with which we are dealing. We introduce
the previous order relation (transitive and reflexive relation) on the plural
CONT(T). Then, for an idea that can be represented by T, some organization of
knowledge is constructed CONT(T), which creates the possibility of review or
coverage (understanding) in the sense of C. I. Lewis. The development of this approach
involves the study of possible situations s, which may be the components of the
proposal. A possible situation is one or the other previous order of the components.
Performing morphological or syntactic analysis, extracting knowledge about terms from
terminological dictionaries or applying other methods of analysis of natural language
text, situations are always investigated in which there are morphemes in lexemes,
lexemes in sentences, sentences in the text, etc. Thus, methods of processing natural
language text are almost always aimed at analyzing the situational context, and,
depending on the method presented, the object of this analysis is a text or a fragment of
text, or a sentence lexeme or a morpheme of a lexeme. According to the above, for the
solution of various problems of study of the monological natural-speech text it is
necessary to develop methods of their solution, based on situational modeling. Situational
modeling is based on a simple nuclear construction of the language skk=xRy, where x,
y is terms, R is semantic relationship between them. Let us now consider the structure
of the production rule, which is usually described by the seven [83, 85]:
pr  I , K,O,C, A  B, H, E 
(4)
where I is the unique name of the product; K is the scope of the section or products; O
is priority of production execution; C is product applicability condition, which is
usually a logical expression; A→B is core products; H is aftereffects or postconditions of
products, having the form of procedures performed in the event that the core of the
product has been realized; E is links to other products.</p>
      <p>
        The scope of the products is determined by the nature of the methods. For example,
in the extraction of knowledge about the terminological system of the domain, the
scope of application of K is the extraction of knowledge from terminological
dictionaries. Product priority O is automatically set according to the length of the
applicability condition, with the longest condition having the highest priority. The aftereffects
of H and the relationship of E to other products are determined during kernel
development. The main element of production is the core of the production rule in the form
of "If A, then B". By antecedent A and consequent B we mean a number of facts.
Structure skk corresponds to the structure of the fact. To verify this, consider the core
of the production rule to identify the qualitative part-to-whole aggregation relation in
the sentence "Advance is part of the total contract value". On some given subset of
natural language it has this representation:
t1
t2
R
v
tr
This statement allows you to identify the fact that in the original sentence classified as
"All" refers to the term "total contract price", the category "Part" the term "Advance",
and that between them there exists a relation "All → Part." As can be seen from the
example, the structure of the simple nuclear construction of each statement fact can be
seen explicitly, for example, in the first fact " &lt; sentence&gt;s contains &lt;term&gt; t1 » : x =
« &lt;sentence&gt;s s », R = «contains », y = « &lt;Term&gt; t1 ». Thus, we use the production
model of knowledge representation as a method representation model [
        <xref ref-type="bibr" rid="ref25">42</xref>
        ]. This
means that for each method it is necessary to develop a system of products, which
most often has a hierarchical structure and is a declarative form of representation of
the method. For example, a production system for recognizing semantic relations
PrSRR consists of subsystems: recognition of semantic relations " whole → part
»PrSRR_WP, « Genus-species» PrSRR_CK and etc.
However, the creation of a system of products is quite a time-consuming task, it is
often difficult for experts to formulate the rules that they use in solving problems,
since expert knowledge in most cases is subconscious. It is the subconscious nature of
expert knowledge that causes difficulties in the construction of expert systems, and
the extraction of expert knowledge is considered a" bottleneck" of artificial
intelligence [
        <xref ref-type="bibr" rid="ref25">42</xref>
        ]. Therefore, the system provides the ability to add production rules. The
input data is a text file with the source text in the format"*.txt,*.doc,*.docx", (Fig.14)
and words, phrases and their word forms (Fig. 15).
The result of the program is: found the wrong term (Fig. 16), a suggestion to replace it
with one of the correct terms from the list (list 1, Fig. 16), a list of keywords found,
and an RDF file that describes the ontology.
      </p>
      <sec id="sec-7-1">
        <title>The program searches for incorrect terms and keywords in a text document.</title>
      </sec>
      <sec id="sec-7-2">
        <title>1. Click "Open file". 2. Click the "Check text", "Check" or "Find the wrong term" button. 3. Select one of the options and click "Replace". 4. If necessary, click the "Find keywords" button to display a list of keywords.</title>
        <p>Input is fragment of the article "Intelligent system of modeling the processes of
analysis and synthesis of technical text".</p>
      </sec>
    </sec>
    <sec id="sec-8">
      <title>The Work Result of the Program</title>
      <p>Fig. 17 shows the system detected the wrong phrase "comparing the facts", also the
user is asked to choose one of the options to replace the wrong phrase with the correct
one. Fig. 18 is the result of the keyword search engine is shown. The author of the
article specified key words: morphological analysis, morphemes, and terms. The
system found key words: text, system, approach, mechanism. Therefore, the result: "the
keywords Specified by the author are not correct".</p>
    </sec>
    <sec id="sec-9">
      <title>Conclusions and Prospects for Further Research</title>
      <p>An intelligent system for modeling the processes of analysis and synthesis of
technical text is developed. For the design and implementation of structural analysis
system used by the environment AllFusion Process Modeler 7, which were created a
functional diagram system, data flow diagrams, logical and sequence diagram works.
All components and functional parts of the system are developed using visual
programming environment C++ Builder 6.0, using SQL queries. Designing the database
designed in the MySQL Workbench environment. The analysis of literature sources
and researches in the field of automatic text processing and morphological analysis
was carried out, the existing, similar in functionality, systems were considered. The
system of modeling of processes of the analysis and synthesis of the technical text is
developed. it searches for wrong words and phrases in texts of technical character, in
particular articles. The system additionally provides the function of searching
keywords in the text on the basis of Zipf's law. The found keywords can be used to
construct a sex ontology in the form of XML documents, which is a very important fact
because this format has become in fact the standard for data exchange between
applications. To automate the validation stage, it would be more effective to use third-party
dictionaries and thesauruses, which accordingly leads to the need to develop
Ukrainian-language WordNet correspondences.</p>
      <p>The result of the system is found the wrong word or phrase, and a list of words or
phrases that can replace it, the system also displays a list of keywords specified by the
author of the article, a list of keywords found by the system, and the result of
checking their coincidence. Despite the functionality of the system, it is not without
drawbacks. As all work of system depends on filling of its dictionary, first of all, it is
necessary to carry out replenishment of base of words. Depriving the developed system
of its shortcomings can be the first step in its further development. In particular, the
work on the system should be continued in the direction of improving the algorithms
for finding incorrect words and phrases, for example, the implementation of the
search algorithm based on neural networks. To improve the efficiency of the keyword
search algorithm, it is necessary to implement the ability to search for keywords not in
one file, but in several files of similar subjects in order to discard words that are
characteristic of texts of the same subject, but are not the key. The difference between the
developed systems from the existing systems at the current stage of its development is
the narrow specialization of the system on the texts of specific topics, in particular
technical articles. So, the system of modeling the processes of analysis and synthesis
of technical text is a simple tool for finding the wrong words and phrases, for building
ontology and can be used for non-commercial purposes.
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