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<article article-type="research-article" dtd-version="1.2" xml:lang="ru" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><front><journal-meta><journal-id journal-id-type="issn">2518-1092</journal-id><journal-title-group><journal-title>Research result. Information technologies</journal-title></journal-title-group><issn pub-type="epub">2518-1092</issn></journal-meta><article-meta><article-id pub-id-type="doi">10.18413/2518-1092-2016-1-3-42-51</article-id><article-id pub-id-type="publisher-id">784</article-id><article-categories><subj-group subj-group-type="heading"><subject>SYSTEM ANALYSIS AND PROCESSING OF KNOWLEDGE</subject></subj-group></article-categories><title-group><article-title>MAIN PROVISIONS OF THE EXPERT SYSTEM WITH THE RULE OF INFERENCE BASED ON FUZZY TRUTH DEGREE</article-title><trans-title-group xml:lang="en"><trans-title>MAIN PROVISIONS OF THE EXPERT SYSTEM WITH THE RULE OF INFERENCE BASED ON FUZZY TRUTH DEGREE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Mikhelev</surname><given-names>Vladimir Vladimirovich</given-names></name><name xml:lang="en"><surname>Mikhelev</surname><given-names>Vladimir Vladimirovich</given-names></name></name-alternatives></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Sinyuk</surname><given-names>Vasily Grigorievich</given-names></name><name xml:lang="en"><surname>Sinyuk</surname><given-names>Vasily Grigorievich</given-names></name></name-alternatives><email>vgsinuk@mail.ru</email></contrib></contrib-group><pub-date pub-type="epub"><year>2016</year></pub-date><volume>1</volume><issue>3</issue><fpage>0</fpage><lpage>0</lpage><self-uri content-type="pdf" xlink:href="/media/information/2016/3/it7.pdf" /><abstract xml:lang="ru"><p>The article discusses the process of fuzzy output based on the fuzzy extent to construct fuzzy inference systems of truth. Fuzzy inference systems play an important role in many applications of the fuzzy set theory, such as fuzzy expert systems and many others. At the heart of these systems are the logical rules of the form &amp;quot;If ..., then ...&amp;quot;, in which the assumptions and conclusions are fuzzy concepts. The use of fuzzy sets and fuzzy truth degree with Zadeh compositional rule of inference allows to build such an expert system which can operate with both fuzzy and with clear inputs. On the other hand, the use of fuzzy truth degree significantly increases the efficiency of solving problems, as the computational complexity of the algorithm decreases.</p></abstract><trans-abstract xml:lang="en"><p>The article discusses the process of fuzzy output based on the fuzzy extent to construct fuzzy inference systems of truth. Fuzzy inference systems play an important role in many applications of the fuzzy set theory, such as fuzzy expert systems and many others. At the heart of these systems are the logical rules of the form &amp;quot;If ..., then ...&amp;quot;, in which the assumptions and conclusions are fuzzy concepts. The use of fuzzy sets and fuzzy truth degree with Zadeh compositional rule of inference allows to build such an expert system which can operate with both fuzzy and with clear inputs. On the other hand, the use of fuzzy truth degree significantly increases the efficiency of solving problems, as the computational complexity of the algorithm decreases.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>fuzzy inference process</kwd><kwd>fuzzy truth degree</kwd><kwd>fuzzy sets</kwd><kwd>fuzzy inference systems</kwd><kwd>compositional rule of inference Zadeh</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fuzzy inference process</kwd><kwd>fuzzy truth degree</kwd><kwd>fuzzy sets</kwd><kwd>fuzzy inference systems</kwd><kwd>compositional rule of inference Zadeh</kwd></kwd-group></article-meta></front><back><ref-list><title>Список литературы</title><ref id="B1"><mixed-citation>Alsina C., Frank M. J., Schweizer B. Associative Functions: Triangular Norms and Copulas. Singapore: Word Scientific, 2006.</mixed-citation></ref><ref id="B2"><mixed-citation>Baldwin J. 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