{"id":"https://openalex.org/W4240651559","doi":"https://doi.org/10.1007/3-540-57530-8_18","title":"Query classes","display_name":"Query classes","publication_year":1993,"publication_date":"1993-01-01","ids":{"openalex":"https://openalex.org/W4240651559","doi":"https://doi.org/10.1007/3-540-57530-8_18"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-57530-8_18","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-57530-8_18","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":"conference-paper","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/A5102871843","display_name":"Martin Staudt","orcid":"https://orcid.org/0009-0008-8210-5215"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Martin Staudt","raw_affiliation_strings":["Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026501367","display_name":"Matthias Jarke","orcid":"https://orcid.org/0000-0001-6169-2942"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Matthias Jarke","raw_affiliation_strings":["Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090539825","display_name":"Manfred A. Jeusfeld","orcid":"https://orcid.org/0000-0002-9421-8566"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Manfred A. Jeusfeld","raw_affiliation_strings":["Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5038220491","display_name":"Hans W. Nissen","orcid":null},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Hans W. Nissen","raw_affiliation_strings":["Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Informatik V, RWTH Aachen, Ahornstr. 55, 52056, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I887968799"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.3821,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.68421053,"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":"283","last_page":"295"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9973000288009644,"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":0.9973000288009644,"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/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9948999881744385,"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9940000176429749,"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/computer-science","display_name":"Computer science","score":0.469672292470932}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.469672292470932}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/3-540-57530-8_18","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-57530-8_18","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":23,"referenced_works":["https://openalex.org/W1502898958","https://openalex.org/W1509428113","https://openalex.org/W1511284474","https://openalex.org/W1559309424","https://openalex.org/W1578780470","https://openalex.org/W1589487547","https://openalex.org/W1616151740","https://openalex.org/W1998427498","https://openalex.org/W2051476306","https://openalex.org/W2070553391","https://openalex.org/W2077005267","https://openalex.org/W2079814255","https://openalex.org/W2094677764","https://openalex.org/W2107662595","https://openalex.org/W2112691528","https://openalex.org/W2119295867","https://openalex.org/W2138097335","https://openalex.org/W2143526228","https://openalex.org/W2158732241","https://openalex.org/W2945149461","https://openalex.org/W4236476618","https://openalex.org/W4245349101","https://openalex.org/W6650226110"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W2382290278","https://openalex.org/W2478288626","https://openalex.org/W4391913857","https://openalex.org/W2350741829","https://openalex.org/W2530322880"],"abstract_inverted_index":null,"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2022-05-12T00:00:00"}
