{"id":"https://openalex.org/W1998840913","doi":"https://doi.org/10.1007/s007780050072","title":"The intrinsic problems of structural heterogeneity and an approach to their solution","display_name":"The intrinsic problems of structural heterogeneity and an approach to their solution","publication_year":1999,"publication_date":"1999-04-01","ids":{"openalex":"https://openalex.org/W1998840913","doi":"https://doi.org/10.1007/s007780050072","mag":"1998840913"},"language":"en","primary_location":{"id":"doi:10.1007/s007780050072","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s007780050072","pdf_url":null,"source":{"id":"https://openalex.org/S78926909","display_name":"The VLDB Journal","issn_l":"0949-877X","issn":["0949-877X","1066-8888"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The VLDB Journal The International Journal on Very Large Data Bases","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/A5083499155","display_name":"Theo H\u00e4rder","orcid":"https://orcid.org/0000-0001-8186-2603"},"institutions":[{"id":"https://openalex.org/I153267046","display_name":"University of Kaiserslautern","ror":"https://ror.org/04zrf7b53","country_code":"DE","type":"education","lineage":["https://openalex.org/I153267046"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Theo H\u00e4rder","raw_affiliation_strings":["University of Kaiserslautern, Department of Computer Science, 67653 Kaiserslautern, Germany; e-mail: haerder@informatik.uni-kl.de\n, , , , , , DE","University of Kaiserslautern, Department of Computer Science, 67653 Kaiserslautern, Germany; e-mail: haerder@informatik.uni-kl.de#TAB#"],"affiliations":[{"raw_affiliation_string":"University of Kaiserslautern, Department of Computer Science, 67653 Kaiserslautern, Germany; e-mail: haerder@informatik.uni-kl.de\n, , , , , , DE","institution_ids":["https://openalex.org/I153267046"]},{"raw_affiliation_string":"University of Kaiserslautern, Department of Computer Science, 67653 Kaiserslautern, Germany; e-mail: haerder@informatik.uni-kl.de#TAB#","institution_ids":["https://openalex.org/I153267046"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022949512","display_name":"G\u00fcnter Sauter","orcid":null},"institutions":[{"id":"https://openalex.org/I891521709","display_name":"Daimler (Germany)","ror":"https://ror.org/00m0j3d84","country_code":"DE","type":"company","lineage":["https://openalex.org/I891521709"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"G\u00fcnter Sauter","raw_affiliation_strings":["Daimler-Benz AG, Research & Technology, Dept. CAE-Research (FT3/EK), 89013 Ulm, Germany; e-mail: guenter.sauter@dbag.ulm.DaimlerBenz.com\n, , , , , , DE","Daimler-Benz AG, Research & Technology, Dept. CAE-Research (FT3/EK), 89013 Ulm, Germany; e-mail: guenter.sauter@dbag.ulm.DaimlerBenz.com#TAB#"],"affiliations":[{"raw_affiliation_string":"Daimler-Benz AG, Research & Technology, Dept. CAE-Research (FT3/EK), 89013 Ulm, Germany; e-mail: guenter.sauter@dbag.ulm.DaimlerBenz.com\n, , , , , , DE","institution_ids":["https://openalex.org/I891521709"]},{"raw_affiliation_string":"Daimler-Benz AG, Research & Technology, Dept. CAE-Research (FT3/EK), 89013 Ulm, Germany; e-mail: guenter.sauter@dbag.ulm.DaimlerBenz.com#TAB#","institution_ids":["https://openalex.org/I891521709"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5108770324","display_name":"Joachim Thomas","orcid":null},"institutions":[{"id":"https://openalex.org/I131328143","display_name":"Union Bank of Switzerland","ror":"https://ror.org/01ekk8h85","country_code":"CH","type":"funder","lineage":["https://openalex.org/I131328143"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Joachim Thomas","raw_affiliation_strings":["UBS AG, Hochstr. 16, 4002 Basel, Switzerland; e-mail: joachim.thomas@ubs.com\n, , , , , , CH","UBS AG, Hochstr. 16, 4002 Basel, Switzerland; e-mail: joachim.thomas@ubs.com#TAB#"],"affiliations":[{"raw_affiliation_string":"UBS AG, Hochstr. 16, 4002 Basel, Switzerland; e-mail: joachim.thomas@ubs.com\n, , , , , , CH","institution_ids":["https://openalex.org/I131328143"]},{"raw_affiliation_string":"UBS AG, Hochstr. 16, 4002 Basel, Switzerland; e-mail: joachim.thomas@ubs.com#TAB#","institution_ids":["https://openalex.org/I131328143"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5083499155"],"corresponding_institution_ids":["https://openalex.org/I153267046"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":6.8554,"has_fulltext":false,"cited_by_count":34,"citation_normalized_percentile":{"value":0.9676678,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"8","issue":"1","first_page":"25","last_page":"43"},"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9986000061035156,"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/T11106","display_name":"Data Management and Algorithms","score":0.9972000122070312,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7795669436454773},{"id":"https://openalex.org/keywords/semantic-heterogeneity","display_name":"Semantic heterogeneity","score":0.6106550693511963},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.558466911315918},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.5283000469207764},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.5155117511749268},{"id":"https://openalex.org/keywords/data-mapping","display_name":"Data mapping","score":0.42630481719970703},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.38145875930786133},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.37829309701919556},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.2834080159664154},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.18911156058311462},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.17204874753952026},{"id":"https://openalex.org/keywords/ontology-based-data-integration","display_name":"Ontology-based data integration","score":0.11453253030776978}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7795669436454773},{"id":"https://openalex.org/C2778180026","wikidata":"https://www.wikidata.org/wiki/Q18378163","display_name":"Semantic heterogeneity","level":4,"score":0.6106550693511963},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.558466911315918},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.5283000469207764},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.5155117511749268},{"id":"https://openalex.org/C137314826","wikidata":"https://www.wikidata.org/wiki/Q2330408","display_name":"Data mapping","level":2,"score":0.42630481719970703},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.38145875930786133},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.37829309701919556},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.2834080159664154},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.18911156058311462},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.17204874753952026},{"id":"https://openalex.org/C22550185","wikidata":"https://www.wikidata.org/wiki/Q7095047","display_name":"Ontology-based data integration","level":3,"score":0.11453253030776978}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s007780050072","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s007780050072","pdf_url":null,"source":{"id":"https://openalex.org/S78926909","display_name":"The VLDB Journal","issn_l":"0949-877X","issn":["0949-877X","1066-8888"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The VLDB Journal The International Journal on Very Large Data Bases","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.27.4231","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.27.4231","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://wwwdbis.informatik.uni-kl.de/pubs/papers/HST99.VLDB.ps.gz","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":51,"referenced_works":["https://openalex.org/W31980588","https://openalex.org/W174628062","https://openalex.org/W181537133","https://openalex.org/W192407326","https://openalex.org/W193212315","https://openalex.org/W1491535504","https://openalex.org/W1493661265","https://openalex.org/W1498996471","https://openalex.org/W1507469828","https://openalex.org/W1509376158","https://openalex.org/W1525004312","https://openalex.org/W1529314857","https://openalex.org/W1530383000","https://openalex.org/W1536039172","https://openalex.org/W1544920330","https://openalex.org/W1560504414","https://openalex.org/W1560765098","https://openalex.org/W1579312563","https://openalex.org/W1590198000","https://openalex.org/W1679095708","https://openalex.org/W1963607545","https://openalex.org/W1976253656","https://openalex.org/W1993430431","https://openalex.org/W1995999642","https://openalex.org/W1998046157","https://openalex.org/W2005379079","https://openalex.org/W2015914309","https://openalex.org/W2016758618","https://openalex.org/W2030868491","https://openalex.org/W2032339126","https://openalex.org/W2036289425","https://openalex.org/W2036705516","https://openalex.org/W2036902446","https://openalex.org/W2040733960","https://openalex.org/W2051426769","https://openalex.org/W2055099648","https://openalex.org/W2056168203","https://openalex.org/W2075043418","https://openalex.org/W2079383460","https://openalex.org/W2089634871","https://openalex.org/W2099825534","https://openalex.org/W2112719612","https://openalex.org/W2123975697","https://openalex.org/W2140037779","https://openalex.org/W2149646637","https://openalex.org/W2158494365","https://openalex.org/W2168605051","https://openalex.org/W2171939774","https://openalex.org/W2255298453","https://openalex.org/W2414883570","https://openalex.org/W2545366015"],"related_works":["https://openalex.org/W2019128716","https://openalex.org/W2779831736","https://openalex.org/W2352204529","https://openalex.org/W2035170084","https://openalex.org/W2351577375","https://openalex.org/W1560976572","https://openalex.org/W2632521726","https://openalex.org/W153770410","https://openalex.org/W2352959755","https://openalex.org/W2096465168"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2014,"cited_by_count":2}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}