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  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">REA Press</journal-id>
      <journal-id journal-id-type="publisher-id">null</journal-id>
      <journal-title>REA Press</journal-title><issn pub-type="ppub"> 3042-1306</issn><issn pub-type="epub"> 3042-1306</issn><publisher>
      	<publisher-name>REA Press</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi"> https://doi.org/10.22105/thi.v2i1.30</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
        <subj-group><subject>Hyperfuzzy set, Fuzzy set, System integration, Set theory, Rough set, Hyperrough set</subject></subj-group>
      </article-categories>
      <title-group>
        <article-title>Short consideration for application eamples of health-care system integration using hyperfuzzy sets and hyperrough sets</article-title><subtitle>Short consideration for application eamples of health-care system integration using hyperfuzzy sets and hyperrough sets</subtitle></title-group>
      <contrib-group><contrib contrib-type="author">
	<name name-style="western">
	<surname>Fujita</surname>
		<given-names>Takaaki</given-names>
	</name>
	<aff>Independent Researcher, Shinjuku, Shinjuku-ku, Tokyo, Japan.</aff>
	</contrib></contrib-group>		
      <pub-date pub-type="ppub">
        <month>06</month>
        <year>2025</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>23</day>
        <month>06</month>
        <year>2025</year>
      </pub-date>
      <volume>2</volume>
      <issue>2</issue>
      <permissions>
        <copyright-statement>© 2025 REA Press</copyright-statement>
        <copyright-year>2025</copyright-year>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.5/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p></license>
      </permissions>
      <related-article related-article-type="companion" vol="2" page="e235" id="RA1" ext-link-type="pmc">
			<article-title>Short consideration for application eamples of health-care system integration using hyperfuzzy sets and hyperrough sets</article-title>
      </related-article>
	  <abstract abstract-type="toc">
		<p>
			To model diverse real-world phenomena, a range of uncertainty-handling concepts has been actively studied, including Fuzzy Sets [1, 2], Rough Sets [3], Intuitionistic Fuzzy Sets [4], Paraconsistent Sets [5], Neutrosophic Sets [6, 7], Hyperneutrosophic Sets [8], Plithogenic Sets [9], and others. Among these extensions of fuzzy sets, Hyperfuzzy Sets are of particular significance. A hyperfuzzy set extends the notion of fuzzy sets to a hierarchical structure, enabling a more refined and flexible representation of uncertainty. In addition, the notion of a HyperRough Set generalizes the classical setting to multi-attribute data by assigning, to each attribute profile, a subset of the universe and then taking rough approximations with respect to a fixed indiscernibility relation. However, research on real-life applications of Hyperfuzzy Sets and HyperRough Sets remains limited. This paper explores application examples drawn from real-world scenarios by examining system integration using the Hyperfuzzy Set and HyperRough Set frameworks. Note that Health-Care system integration is the process of connecting distinct subsystems or components into a unified, functional, and efficient whole. 
		</p>
		</abstract>
    </article-meta>
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