{"id":"https://openalex.org/W1971901542","doi":"https://doi.org/10.1016/0022-0000(92)90001-y","title":"Connection-trap-free database schemes","display_name":"Connection-trap-free database schemes","publication_year":1992,"publication_date":"1992-02-01","ids":{"openalex":"https://openalex.org/W1971901542","doi":"https://doi.org/10.1016/0022-0000(92)90001-y","mag":"1971901542"},"language":"en","primary_location":{"id":"doi:10.1016/0022-0000(92)90001-y","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0022-0000(92)90001-y","pdf_url":null,"source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computer and System Sciences","raw_type":"journal-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/A5102089440","display_name":"Edward P. F. Chan","orcid":null},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Edward P.F. Chan","raw_affiliation_strings":["Department of Computer Science, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1","Dept, of Computer Science, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"Dept, of Computer Science, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064341104","display_name":"Paolo Atzeni","orcid":"https://orcid.org/0000-0003-1513-4725"},"institutions":[{"id":"https://openalex.org/I4210162062","display_name":"Istituto di Analisi dei Sistemi ed Informatica Antonio Ruberti","ror":"https://ror.org/054ye0e45","country_code":"IT","type":"facility","lineage":["https://openalex.org/I4210155236","https://openalex.org/I4210162062"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Paolo Atzeni","raw_affiliation_strings":["IASI-CNR, Viale Manzoni 30, 00185 Roma, Italy"],"affiliations":[{"raw_affiliation_string":"IASI-CNR, Viale Manzoni 30, 00185 Roma, Italy","institution_ids":["https://openalex.org/I4210162062"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5102089440"],"corresponding_institution_ids":["https://openalex.org/I151746483"],"apc_list":{"value":2520,"currency":"USD","value_usd":2520},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.14888718,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"44","issue":"1","first_page":"1","last_page":"22"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998999834060669,"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/T11106","display_name":"Data Management and Algorithms","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.9979000091552734,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/connection","display_name":"Connection (principal bundle)","score":0.7796732783317566},{"id":"https://openalex.org/keywords/trap","display_name":"Trap (plumbing)","score":0.7398785948753357},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7050337195396423},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.7019253969192505},{"id":"https://openalex.org/keywords/cover","display_name":"Cover (algebra)","score":0.5696672201156616},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.44044598937034607},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.4050871729850769},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23448437452316284},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09223607182502747},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07415661215782166}],"concepts":[{"id":"https://openalex.org/C13355873","wikidata":"https://www.wikidata.org/wiki/Q2920850","display_name":"Connection (principal bundle)","level":2,"score":0.7796732783317566},{"id":"https://openalex.org/C121099081","wikidata":"https://www.wikidata.org/wiki/Q665580","display_name":"Trap (plumbing)","level":2,"score":0.7398785948753357},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7050337195396423},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.7019253969192505},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.5696672201156616},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.44044598937034607},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4050871729850769},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23448437452316284},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09223607182502747},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07415661215782166},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","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/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1016/0022-0000(92)90001-y","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0022-0000(92)90001-y","pdf_url":null,"source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computer and System Sciences","raw_type":"journal-article"},{"id":"pmh:oai:iris.uniroma3.it:11590/132134","is_oa":false,"landing_page_url":"http://hdl.handle.net/11590/132134","pdf_url":null,"source":{"id":"https://openalex.org/S4377196120","display_name":"Iris (Roma Tre University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I119003972","host_organization_name":"Roma Tre University","host_organization_lineage":["https://openalex.org/I119003972"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:iris.uniroma3.it:11590/153610","is_oa":false,"landing_page_url":"http://hdl.handle.net/11590/153610","pdf_url":null,"source":{"id":"https://openalex.org/S4377196120","display_name":"Iris (Roma Tre University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I119003972","host_organization_name":"Roma Tre University","host_organization_lineage":["https://openalex.org/I119003972"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":58,"referenced_works":["https://openalex.org/W9257641","https://openalex.org/W52829598","https://openalex.org/W52840101","https://openalex.org/W180578187","https://openalex.org/W1530753374","https://openalex.org/W1584982049","https://openalex.org/W1969642268","https://openalex.org/W1973125170","https://openalex.org/W1975714036","https://openalex.org/W1979255783","https://openalex.org/W1981597405","https://openalex.org/W1983428002","https://openalex.org/W1984089690","https://openalex.org/W1984149034","https://openalex.org/W1984939239","https://openalex.org/W1985581502","https://openalex.org/W1993132652","https://openalex.org/W1995734168","https://openalex.org/W1995787994","https://openalex.org/W2005822366","https://openalex.org/W2009155263","https://openalex.org/W2028222220","https://openalex.org/W2029819625","https://openalex.org/W2032386524","https://openalex.org/W2053741160","https://openalex.org/W2058328995","https://openalex.org/W2058667541","https://openalex.org/W2061462629","https://openalex.org/W2066954445","https://openalex.org/W2069981866","https://openalex.org/W2084927067","https://openalex.org/W2089954064","https://openalex.org/W2093275530","https://openalex.org/W2104498537","https://openalex.org/W2113633436","https://openalex.org/W2115822498","https://openalex.org/W2140136514","https://openalex.org/W2146899290","https://openalex.org/W2165467455","https://openalex.org/W2171094216","https://openalex.org/W2185907055","https://openalex.org/W2489748212","https://openalex.org/W2577446513","https://openalex.org/W2611245576","https://openalex.org/W2788164529","https://openalex.org/W4230694642","https://openalex.org/W4242737155","https://openalex.org/W4255419898","https://openalex.org/W6600364518","https://openalex.org/W6602175484","https://openalex.org/W6602188569","https://openalex.org/W6635029190","https://openalex.org/W6644937728","https://openalex.org/W6648690799","https://openalex.org/W6649294934","https://openalex.org/W6649383739","https://openalex.org/W6658136456","https://openalex.org/W6664108635"],"related_works":["https://openalex.org/W2199813689","https://openalex.org/W4252447916","https://openalex.org/W587735977","https://openalex.org/W2369033613","https://openalex.org/W2511880725","https://openalex.org/W2390226751","https://openalex.org/W1978142926","https://openalex.org/W3157395178","https://openalex.org/W2904116937","https://openalex.org/W4236049964"],"abstract_inverted_index":null,"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2016-06-24T00:00:00"}