{"id":"https://openalex.org/W2168532153","doi":"https://doi.org/10.1007/3-540-45758-5_16","title":"Knowledge Representation in Extended Pawlak\u2019s Information Systems: Algebraic Aspects","display_name":"Knowledge Representation in Extended Pawlak\u2019s Information Systems: Algebraic Aspects","publication_year":2002,"publication_date":"2002-01-01","ids":{"openalex":"https://openalex.org/W2168532153","doi":"https://doi.org/10.1007/3-540-45758-5_16","mag":"2168532153"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-45758-5_16","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-45758-5_16","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5051373494","display_name":"J\u0101nis C\u0131\u0304rulis","orcid":"https://orcid.org/0000-0002-1933-9018"},"institutions":[{"id":"https://openalex.org/I91123046","display_name":"University of Latvia","ror":"https://ror.org/05g3mes96","country_code":"LV","type":"education","lineage":["https://openalex.org/I91123046"]}],"countries":["LV"],"is_corresponding":true,"raw_author_name":"J\u0101nis C\u012brulis","raw_affiliation_strings":["University of Latvia, Rai\u0146a b., 19, LV-1586, Riga, Latvia"],"affiliations":[{"raw_affiliation_string":"University of Latvia, Rai\u0146a b., 19, LV-1586, Riga, Latvia","institution_ids":["https://openalex.org/I91123046"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5051373494"],"corresponding_institution_ids":["https://openalex.org/I91123046"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.3616,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.65206017,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"250","last_page":"267"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9994999766349792,"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":0.9994999766349792,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9815000295639038,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9789000153541565,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/binary-relation","display_name":"Binary relation","score":0.7653836011886597},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6585924625396729},{"id":"https://openalex.org/keywords/axiom","display_name":"Axiom","score":0.6575027704238892},{"id":"https://openalex.org/keywords/relation","display_name":"Relation (database)","score":0.6059144735336304},{"id":"https://openalex.org/keywords/axiomatic-system","display_name":"Axiomatic system","score":0.5935165286064148},{"id":"https://openalex.org/keywords/algebraic-structure","display_name":"Algebraic structure","score":0.5485740900039673},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5430675148963928},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5365431904792786},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.5060099959373474},{"id":"https://openalex.org/keywords/knowledge-representation-and-reasoning","display_name":"Knowledge representation and reasoning","score":0.5049169659614563},{"id":"https://openalex.org/keywords/algebraic-number","display_name":"Algebraic number","score":0.5033523440361023},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.49210065603256226},{"id":"https://openalex.org/keywords/information-space","display_name":"Information space","score":0.4807184040546417},{"id":"https://openalex.org/keywords/rough-set","display_name":"Rough set","score":0.4464958906173706},{"id":"https://openalex.org/keywords/information-system","display_name":"Information system","score":0.41375380754470825},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.39310967922210693},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.330169141292572},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.32694557309150696},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2847614884376526},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.20330438017845154},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.1601007878780365},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.09062987565994263}],"concepts":[{"id":"https://openalex.org/C65180967","wikidata":"https://www.wikidata.org/wiki/Q130901","display_name":"Binary relation","level":2,"score":0.7653836011886597},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6585924625396729},{"id":"https://openalex.org/C167729594","wikidata":"https://www.wikidata.org/wiki/Q17736","display_name":"Axiom","level":2,"score":0.6575027704238892},{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.6059144735336304},{"id":"https://openalex.org/C125773388","wikidata":"https://www.wikidata.org/wiki/Q792542","display_name":"Axiomatic system","level":3,"score":0.5935165286064148},{"id":"https://openalex.org/C182419690","wikidata":"https://www.wikidata.org/wiki/Q205464","display_name":"Algebraic structure","level":2,"score":0.5485740900039673},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5430675148963928},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5365431904792786},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.5060099959373474},{"id":"https://openalex.org/C161301231","wikidata":"https://www.wikidata.org/wiki/Q3478658","display_name":"Knowledge representation and reasoning","level":2,"score":0.5049169659614563},{"id":"https://openalex.org/C9376300","wikidata":"https://www.wikidata.org/wiki/Q168817","display_name":"Algebraic number","level":2,"score":0.5033523440361023},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.49210065603256226},{"id":"https://openalex.org/C2776377510","wikidata":"https://www.wikidata.org/wiki/Q4202250","display_name":"Information space","level":2,"score":0.4807184040546417},{"id":"https://openalex.org/C111012933","wikidata":"https://www.wikidata.org/wiki/Q3137210","display_name":"Rough set","level":2,"score":0.4464958906173706},{"id":"https://openalex.org/C180198813","wikidata":"https://www.wikidata.org/wiki/Q121182","display_name":"Information system","level":2,"score":0.41375380754470825},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.39310967922210693},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.330169141292572},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.32694557309150696},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2847614884376526},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.20330438017845154},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.1601007878780365},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.09062987565994263},{"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/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/3-540-45758-5_16","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-45758-5_16","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W15218621","https://openalex.org/W114854144","https://openalex.org/W141916723","https://openalex.org/W197450471","https://openalex.org/W216418035","https://openalex.org/W225730259","https://openalex.org/W345129420","https://openalex.org/W400112057","https://openalex.org/W1492444612","https://openalex.org/W1493823068","https://openalex.org/W1544072666","https://openalex.org/W1544564247","https://openalex.org/W1598499642","https://openalex.org/W1763123210","https://openalex.org/W1945946994","https://openalex.org/W1966699200","https://openalex.org/W1979029381","https://openalex.org/W1983022915","https://openalex.org/W2019254124","https://openalex.org/W2051841378","https://openalex.org/W2074896448","https://openalex.org/W2093397547","https://openalex.org/W2096744626","https://openalex.org/W2103514965","https://openalex.org/W2122859326","https://openalex.org/W2149420462","https://openalex.org/W2151256611","https://openalex.org/W2153320571","https://openalex.org/W2162995436","https://openalex.org/W2166260471","https://openalex.org/W2254482157","https://openalex.org/W2491671861","https://openalex.org/W2912435539","https://openalex.org/W2989739191","https://openalex.org/W3161688025","https://openalex.org/W3163705090","https://openalex.org/W4205529794","https://openalex.org/W4250352622"],"related_works":["https://openalex.org/W2156982617","https://openalex.org/W2056040336","https://openalex.org/W3122339246","https://openalex.org/W3121338104","https://openalex.org/W2539584098","https://openalex.org/W2612614191","https://openalex.org/W4300725361","https://openalex.org/W2050283812","https://openalex.org/W2384156205","https://openalex.org/W2369231319"],"abstract_inverted_index":null,"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}