{"id":"https://openalex.org/W2090584654","doi":"https://doi.org/10.1109/grc.2009.5255159","title":"Research on the approach of dynamically maintenance of approximations in rough set theory while attribute values coarsening and refining","display_name":"Research on the approach of dynamically maintenance of approximations in rough set theory while attribute values coarsening and refining","publication_year":2009,"publication_date":"2009-08-01","ids":{"openalex":"https://openalex.org/W2090584654","doi":"https://doi.org/10.1109/grc.2009.5255159","mag":"2090584654"},"language":"en","primary_location":{"id":"doi:10.1109/grc.2009.5255159","is_oa":false,"landing_page_url":"https://doi.org/10.1109/grc.2009.5255159","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Granular Computing","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112747049","display_name":"Hongmei Chen","orcid":null},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hongmei Chen","raw_affiliation_strings":["School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China","School of Information Science and Technology, Southwest Jiaotong University, Chengdu 61003, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]},{"raw_affiliation_string":"School of Information Science and Technology, Southwest Jiaotong University, Chengdu 61003, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070559820","display_name":"Tianrui Li","orcid":"https://orcid.org/0000-0001-7780-104X"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tianrui Li","raw_affiliation_strings":["School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China","School of Information Science and Technology, Southwest Jiaotong University, Chengdu 61003, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]},{"raw_affiliation_string":"School of Information Science and Technology, Southwest Jiaotong University, Chengdu 61003, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101917066","display_name":"Weibin Liu","orcid":"https://orcid.org/0000-0001-6246-0051"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weibin Liu","raw_affiliation_strings":["School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China","School of Information Science and Technology, Southwest Jiaotong University, Chengdu 61003, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]},{"raw_affiliation_string":"School of Information Science and Technology, Southwest Jiaotong University, Chengdu 61003, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020617611","display_name":"Weili Zou","orcid":null},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weili Zou","raw_affiliation_strings":["School of Mathematics, Southwest Jiaotong University, Chengdu, China","School of Mathematics, Southwest Jiaotong University, Chengdu, 610031, China"],"affiliations":[{"raw_affiliation_string":"School of Mathematics, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]},{"raw_affiliation_string":"School of Mathematics, Southwest Jiaotong University, Chengdu, 610031, China","institution_ids":["https://openalex.org/I4800084"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5112747049"],"corresponding_institution_ids":["https://openalex.org/I4800084"],"apc_list":null,"apc_paid":null,"fwci":2.7422,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.90197972,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"4585","issue":null,"first_page":"45","last_page":"48"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13734","display_name":"Advanced Computational Techniques and Applications","score":0.9848999977111816,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14262","display_name":"Extenics and Innovation Methods","score":0.9625999927520752,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/rough-set","display_name":"Rough set","score":0.9142289757728577},{"id":"https://openalex.org/keywords/granularity","display_name":"Granularity","score":0.8863229751586914},{"id":"https://openalex.org/keywords/refining","display_name":"Refining (metallurgy)","score":0.8395707607269287},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5841991305351257},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5644288659095764},{"id":"https://openalex.org/keywords/approximations-of-\u03c0","display_name":"Approximations of \u03c0","score":0.5440321564674377},{"id":"https://openalex.org/keywords/granular-computing","display_name":"Granular computing","score":0.5172668099403381},{"id":"https://openalex.org/keywords/set-theory","display_name":"Set theory","score":0.4129887819290161},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3843379020690918},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.366413950920105},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.32581669092178345},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.31330281496047974}],"concepts":[{"id":"https://openalex.org/C111012933","wikidata":"https://www.wikidata.org/wiki/Q3137210","display_name":"Rough set","level":2,"score":0.9142289757728577},{"id":"https://openalex.org/C177774035","wikidata":"https://www.wikidata.org/wiki/Q1246948","display_name":"Granularity","level":2,"score":0.8863229751586914},{"id":"https://openalex.org/C60044698","wikidata":"https://www.wikidata.org/wiki/Q1283324","display_name":"Refining (metallurgy)","level":2,"score":0.8395707607269287},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5841991305351257},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5644288659095764},{"id":"https://openalex.org/C193386753","wikidata":"https://www.wikidata.org/wiki/Q1130396","display_name":"Approximations of \u03c0","level":2,"score":0.5440321564674377},{"id":"https://openalex.org/C17209119","wikidata":"https://www.wikidata.org/wiki/Q5596712","display_name":"Granular computing","level":3,"score":0.5172668099403381},{"id":"https://openalex.org/C153046414","wikidata":"https://www.wikidata.org/wiki/Q12482","display_name":"Set theory","level":3,"score":0.4129887819290161},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3843379020690918},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.366413950920105},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.32581669092178345},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.31330281496047974},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/grc.2009.5255159","is_oa":false,"landing_page_url":"https://doi.org/10.1109/grc.2009.5255159","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Granular Computing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1503344462","https://openalex.org/W1504062128","https://openalex.org/W1506077366","https://openalex.org/W1517636450","https://openalex.org/W2010522779","https://openalex.org/W2054449235","https://openalex.org/W2094534479","https://openalex.org/W2117827905","https://openalex.org/W2129181946","https://openalex.org/W2147293185","https://openalex.org/W2163481099","https://openalex.org/W2165267798","https://openalex.org/W2340020088","https://openalex.org/W4255833381","https://openalex.org/W6629989903","https://openalex.org/W6630457132","https://openalex.org/W6681654497"],"related_works":["https://openalex.org/W1795409297","https://openalex.org/W2508737459","https://openalex.org/W2734666672","https://openalex.org/W2385082087","https://openalex.org/W2013421631","https://openalex.org/W2390772058","https://openalex.org/W2282249876","https://openalex.org/W2978631811","https://openalex.org/W2367964367","https://openalex.org/W2374419214"],"abstract_inverted_index":{"In":[0],"rough":[1],"set":[2],"theory":[3],"(RST),":[4],"upper":[5,80],"and":[6,67,81,88],"lower":[7,82],"approximations":[8,25,54,83],"of":[9,42,63,79,95,99],"a":[10],"concept":[11],"will":[12],"change":[13],"dynamically":[14,52],"while":[15,84],"the":[16,28,40,49,93,100],"information":[17,31,70],"system":[18],"varies":[19],"over":[20],"time.":[21],"How":[22],"to":[23],"update":[24],"based":[26],"on":[27,48],"original":[29],"approximations'":[30],"is":[32,104],"an":[33],"important":[34],"problem":[35],"since":[36],"it":[37],"may":[38],"improve":[39],"efficiency":[41],"knowledge":[43],"discovery.":[44],"This":[45],"paper":[46],"focuses":[47],"approach":[50],"for":[51,76],"updating":[53],"when":[55],"attribute":[56,64,85,102],"values":[57,65,86,103],"coarsening":[58,66,96],"or":[59,97],"refining.":[60],"The":[61,74],"definitions":[62],"refining":[68,98],"in":[69],"systems":[71],"are":[72,90],"introduced.":[73],"properties":[75],"dynamic":[77],"maintenance":[78],"coarsen":[87],"refine":[89],"presented.":[91],"Finally,":[92],"principle":[94],"multi-granularity":[101],"analyzed.":[105]},"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
