{"id":"https://openalex.org/W2107639246","doi":"https://doi.org/10.1007/3-540-53507-1_72","title":"A relational object model","display_name":"A relational object model","publication_year":1990,"publication_date":"1990-01-01","ids":{"openalex":"https://openalex.org/W2107639246","doi":"https://doi.org/10.1007/3-540-53507-1_72","mag":"2107639246"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-53507-1_72","doi":"https://doi.org/10.1007/3-540-53507-1_72","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-53507-1_72","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,"listed_in":["cwts-core","jufo-1","ki-jl-1","norway-1","vabb-shw"],"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"},"volume":{"id":"https://openalex.org/W4242240472","display_name":"ICDT '90"},"type":"conference-paper","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://kops.uni-konstanz.de/server/api/core/bitstreams/8127ff24-7727-4512-b7be-c25bad95cec4/content","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5071659666","display_name":"Marc H. Scholl","orcid":"https://orcid.org/0000-0002-4304-4092","observed_orcids":["https://orcid.org/0000-0002-4304-4092"]},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Marc H. Scholl","raw_affiliation_strings":["ETH Z\u00fcrich, Dept. of Computer Science, Information Systems \u2014 Databases ETH Zentrum, CH-8092, Z\u00fcrich, Switzerland","Information Systems \u2014 Databases ETH Zentrum"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ETH Z\u00fcrich, Dept. of Computer Science, Information Systems \u2014 Databases ETH Zentrum, CH-8092, Z\u00fcrich, Switzerland","institution_ids":["https://openalex.org/I35440088"]},{"raw_affiliation_string":"Information Systems \u2014 Databases ETH Zentrum","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110166699","display_name":"Hans\u2010J\u00f6rg Schek","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Hans-J\u00f6rg Schek","raw_affiliation_strings":["ETH Z\u00fcrich, Dept. of Computer Science, Information Systems \u2014 Databases ETH Zentrum, CH-8092, Z\u00fcrich, Switzerland","Information Systems \u2014 Databases ETH Zentrum"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ETH Z\u00fcrich, Dept. of Computer Science, Information Systems \u2014 Databases ETH Zentrum, CH-8092, Z\u00fcrich, Switzerland","institution_ids":["https://openalex.org/I35440088"]},{"raw_affiliation_string":"Information Systems \u2014 Databases ETH Zentrum","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I35440088"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":14.297,"has_fulltext":true,"cited_by_count":91,"citation_normalized_percentile":{"value":0.9929078,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":null,"issue":null,"first_page":"89","last_page":"105"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10126","display_name":"Logic, programming, and type systems","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/T11106","display_name":"Data Management and Algorithms","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/relational-model","display_name":"relational model","score":0.722000002861023},{"id":"https://openalex.org/keywords/nested-relations","display_name":"nested relations","score":0.8190000057220459},{"id":"https://openalex.org/keywords/object-oriented-data-model","display_name":"object-oriented data model","score":0.9150000214576721},{"id":"https://openalex.org/keywords/nested-relational-algebra","display_name":"nested relational algebra","score":0.9160000085830688},{"id":"https://openalex.org/keywords/object-algebra","display_name":"object algebra","score":0.5879999995231628},{"id":"https://openalex.org/keywords/view-definition","display_name":"view definition","score":0.5329999923706055},{"id":"https://openalex.org/keywords/object-views","display_name":"object views","score":0.5960000157356262},{"id":"https://openalex.org/keywords/relational-view","display_name":"relational view","score":0.9150000214576721},{"id":"https://openalex.org/keywords/collaborative-systems","display_name":"collaborative systems","score":0.6079999804496765}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8199267387390137},{"id":"https://openalex.org/C95916125","wikidata":"https://www.wikidata.org/wiki/Q840540","display_name":"Relational algebra","level":3,"score":0.734711766242981},{"id":"https://openalex.org/C99436015","wikidata":"https://www.wikidata.org/wiki/Q1722436","display_name":"Relational calculus","level":4,"score":0.6809964776039124},{"id":"https://openalex.org/C40207289","wikidata":"https://www.wikidata.org/wiki/Q755662","display_name":"Relational model","level":3,"score":0.6573666334152222},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.6374386548995972},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.5856895446777344},{"id":"https://openalex.org/C16739119","wikidata":"https://www.wikidata.org/wiki/Q5139948","display_name":"Codd's theorem","level":5,"score":0.5593344569206238},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5395054817199707},{"id":"https://openalex.org/C100463513","wikidata":"https://www.wikidata.org/wiki/Q5227322","display_name":"Data model (GIS)","level":2,"score":0.5218338370323181},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.4932519793510437},{"id":"https://openalex.org/C192028432","wikidata":"https://www.wikidata.org/wiki/Q845739","display_name":"Query language","level":2,"score":0.470549613237381},{"id":"https://openalex.org/C20894473","wikidata":"https://www.wikidata.org/wiki/Q1116105","display_name":"Object model","level":3,"score":0.449419766664505},{"id":"https://openalex.org/C56310702","wikidata":"https://www.wikidata.org/wiki/Q2269281","display_name":"Semi-structured model","level":4,"score":0.42496469616889954},{"id":"https://openalex.org/C5968703","wikidata":"https://www.wikidata.org/wiki/Q267136","display_name":"Database model","level":3,"score":0.4210784435272217},{"id":"https://openalex.org/C103000020","wikidata":"https://www.wikidata.org/wiki/Q1978426","display_name":"Nested set model","level":3,"score":0.4182151257991791},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.30076825618743896},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.21943140029907227}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/3-540-53507-1_72","doi":"https://doi.org/10.1007/3-540-53507-1_72","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-53507-1_72","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,"listed_in":["cwts-core","jufo-1","ki-jl-1","norway-1","vabb-shw"],"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"},{"id":"pmh:oai:kops.uni-konstanz.de:123456789/17879","doi":null,"is_oa":true,"landing_page_url":"http://nbn-resolving.de/urn:nbn:de:bsz:352-178796","pdf_url":"https://kops.uni-konstanz.de/server/api/core/bitstreams/8127ff24-7727-4512-b7be-c25bad95cec4/content","source":{"id":"https://openalex.org/S4306401487","display_name":"KOPS (University of Konstanz)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I189712700","host_organization_name":"University of Konstanz","host_organization_lineage":["https://openalex.org/I189712700"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ABITEBOUL, Serge, Hrsg., Paris C. KANELLAKIS, Hrsg.. ICDT '90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005, S. 89-105. Lecture Notes in Computer Science. 470. ISBN 978-3-540-53507-2. Verf\u00fcgbar unter: doi: 10.1007/3-540-53507-1_72","raw_type":"doc-type:conferenceObject"}],"best_oa_location":{"id":"pmh:oai:kops.uni-konstanz.de:123456789/17879","doi":null,"is_oa":true,"landing_page_url":"http://nbn-resolving.de/urn:nbn:de:bsz:352-178796","pdf_url":"https://kops.uni-konstanz.de/server/api/core/bitstreams/8127ff24-7727-4512-b7be-c25bad95cec4/content","source":{"id":"https://openalex.org/S4306401487","display_name":"KOPS (University of Konstanz)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I189712700","host_organization_name":"University of Konstanz","host_organization_lineage":["https://openalex.org/I189712700"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ABITEBOUL, Serge, Hrsg., Paris C. KANELLAKIS, Hrsg.. ICDT '90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005, S. 89-105. Lecture Notes in Computer Science. 470. ISBN 978-3-540-53507-2. Verf\u00fcgbar unter: doi: 10.1007/3-540-53507-1_72","raw_type":"doc-type:conferenceObject"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2107639246.pdf","grobid_xml":"https://content.openalex.org/works/W2107639246.grobid-xml"},"referenced_works_count":61,"referenced_works":["https://openalex.org/W21010746","https://openalex.org/W50685456","https://openalex.org/W112959345","https://openalex.org/W188352787","https://openalex.org/W221670187","https://openalex.org/W288430805","https://openalex.org/W597716531","https://openalex.org/W781674841","https://openalex.org/W1491366049","https://openalex.org/W1492804197","https://openalex.org/W1502637780","https://openalex.org/W1505886365","https://openalex.org/W1537933743","https://openalex.org/W1539600352","https://openalex.org/W1555504763","https://openalex.org/W1564646625","https://openalex.org/W1565429491","https://openalex.org/W1567049765","https://openalex.org/W1571666392","https://openalex.org/W1571759917","https://openalex.org/W1576853379","https://openalex.org/W1578062863","https://openalex.org/W1579889573","https://openalex.org/W1591309737","https://openalex.org/W1597998418","https://openalex.org/W1721126460","https://openalex.org/W1765208181","https://openalex.org/W1867160744","https://openalex.org/W1989910224","https://openalex.org/W2011573124","https://openalex.org/W2016590848","https://openalex.org/W2027218717","https://openalex.org/W2027657506","https://openalex.org/W2033368934","https://openalex.org/W2038271811","https://openalex.org/W2060849841","https://openalex.org/W2072627547","https://openalex.org/W2082625705","https://openalex.org/W2089042876","https://openalex.org/W2089781037","https://openalex.org/W2098733337","https://openalex.org/W2112557722","https://openalex.org/W2112691528","https://openalex.org/W2120533455","https://openalex.org/W2122081499","https://openalex.org/W2133418877","https://openalex.org/W2153524094","https://openalex.org/W2158141386","https://openalex.org/W2159525276","https://openalex.org/W2161825580","https://openalex.org/W2166061747","https://openalex.org/W2200545814","https://openalex.org/W2205031991","https://openalex.org/W2295616626","https://openalex.org/W2402610100","https://openalex.org/W2611491611","https://openalex.org/W3128528373","https://openalex.org/W4230983477","https://openalex.org/W4237407586","https://openalex.org/W4249719514","https://openalex.org/W4250587856"],"related_works":["https://openalex.org/W1565429491","https://openalex.org/W1482097947","https://openalex.org/W2153524094","https://openalex.org/W1529337226","https://openalex.org/W1534343571","https://openalex.org/W66892577","https://openalex.org/W7097112910","https://openalex.org/W1719197572","https://openalex.org/W7095847202","https://openalex.org/W2240870195"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}