{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T06:27:40Z","timestamp":1777703260743,"version":"3.51.4"},"reference-count":24,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2019,6,11]],"date-time":"2019-06-11T00:00:00Z","timestamp":1560211200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Intelligent &amp; Fuzzy Systems"],"published-print":{"date-parts":[[2019,6,11]]},"abstract":"<jats:p>\n                    Attribute reduction is an important issue in knowledge discovery and data mining. Applying rough set theory, information systems based on crisp (or explicit) features can be easily done attribute reductions, but there exists rarely deeper discussion about attribute reduction in fuzzy information systems (i.e. information systems based on vague or undefinable features). A fully fuzzy information system is an information system where each of its attributes determines a fuzzy set on the object set, this paper investigates\n                    <jats:italic>cc<\/jats:italic>\n                    -reduction in this information system. The concept of class-consistent is first introduced. Then, the class-consistent relation\n                    <jats:italic>cc<\/jats:italic>\n                    (\n                    <jats:italic>P<\/jats:italic>\n                    ) induced by the given attribute subset\n                    <jats:italic>P<\/jats:italic>\n                    in a fully fuzzy information system is proposed. Next, the class-consistent reduction (for short,\n                    <jats:italic>cc<\/jats:italic>\n                    -reduction) in a fully fuzzy information system is proposed and studied along with its corresponding algorithm. Moreover, considering that homomorphism is a kind of tools to study relationships between two fully fuzzy information systems, invariant characterizations of fully fuzzy information systems under homomorphisms are obtained. Finally, a numerical experiment is employed to illustrate the practical significance and possible applications of\n                    <jats:italic>cc<\/jats:italic>\n                    -reduction in a fully fuzzy information system.\n                  <\/jats:p>","DOI":"10.3233\/jifs-18627","type":"journal-article","created":{"date-parts":[[2019,6,14]],"date-time":"2019-06-14T15:44:29Z","timestamp":1560527069000},"page":"6589-6604","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["<i>cc<\/i>\n                    -reduction in a fully fuzzy information system"],"prefix":"10.1177","volume":"36","author":[{"given":"Gangqiang","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Software and Information Security, Guangxi University for Nationalities, Nanning, Guangxi, P.R.China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaowen","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Complex System Optimization and Big Data Processing in Department of Guangxi Education, Yulin Normal University, Yulin, Guangxi, P.R.China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meng","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Science, Guangxi University for Nationalities, Nanning, Guangxi, P.R.China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ningxin","family":"Xie","sequence":"additional","affiliation":[{"name":"School of Software and Information Security, Guangxi University for Nationalities, Nanning, Guangxi, P.R.China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Funing","family":"Lin","sequence":"additional","affiliation":[{"name":"School of Information and Statistics, Guangxi University of Finance and Economics, Nanning, Guangxi, P.R.China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2019,6,11]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eswa.2011.04.003"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2014.02.120"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1145\/12808.12856"},{"issue":"10","key":"e_1_3_2_5_2","first-page":"1470","article-title":"Knowledge reduction methods in fuzzy objective information systems","volume":"15","author":"Guan T.","year":"2004","unstructured":"GuanT. and FengB.Q., Knowledge reduction methods in fuzzy objective information systems, Journal of Software 15(10) (2004), 1470\u20131478.","journal-title":"Journal of Software"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knosys.2011.04.012"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2012.09.010"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knosys.2011.12.008"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0020-0255(00)00017-7"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1080\/03081079.2015.1011631"},{"issue":"3","key":"e_1_3_2_11_2","first-page":"233","article-title":"On rough sets and information system homomorphism","volume":"36","author":"Grzymala-Busse J.W.","year":"1988","unstructured":"Grzymala-BusseJ.W. and SedelowW.A.Jr, On rough sets and information system homomorphism, Bulletin of the Polish Academy of Technology Science 36(3-4) (1988), 233\u2013239.","journal-title":"Bulletin of the Polish Academy of Technology Science"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF01001956"},{"key":"e_1_3_2_13_2","doi-asserted-by":"crossref","unstructured":"PawlakZ. 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WuW.Z. LiangJ.Y. and LiD.Y. Theory and method of rough sets Chinese Scientific Publisher Beijing 2001."},{"key":"e_1_3_2_25_2","unstructured":"ZhangW.X. and QiuG.F. Uncertain decision making based on rough sets Tsinghua University Publishers Beijing 2005."}],"container-title":["Journal of Intelligent &amp; Fuzzy Systems"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/JIFS-18627","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.3233\/JIFS-18627","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/JIFS-18627","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T09:38:15Z","timestamp":1777455495000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.3233\/JIFS-18627"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,6,11]]},"references-count":24,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2019,6,11]]}},"alternative-id":["10.3233\/JIFS-18627"],"URL":"https:\/\/doi.org\/10.3233\/jifs-18627","relation":{},"ISSN":["1064-1246","1875-8967"],"issn-type":[{"value":"1064-1246","type":"print"},{"value":"1875-8967","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,6,11]]}}}