{"id":"https://openalex.org/W2144462891","doi":"https://doi.org/10.1007/978-3-540-24698-5_5","title":"Querying Priced Information in Databases: The Conjunctive Case","display_name":"Querying Priced Information in Databases: The Conjunctive Case","publication_year":2004,"publication_date":"2004-01-01","ids":{"openalex":"https://openalex.org/W2144462891","doi":"https://doi.org/10.1007/978-3-540-24698-5_5","mag":"2144462891"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-540-24698-5_5","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-24698-5_5","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/A5003708013","display_name":"Sany Laber","orcid":null},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontif\u00edcia Universidade Cat\u00f3lica do Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Sany Laber","raw_affiliation_strings":["Departamento de Inform\u00e1tica da Pontif\u00edcia, Universidade Cat\u00f3lica do Rio de Janeiro, R. Marqu\u00eas de S\u00e3o Vicente 225, Rio de Janeiro, RJ, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Inform\u00e1tica da Pontif\u00edcia, Universidade Cat\u00f3lica do Rio de Janeiro, R. Marqu\u00eas de S\u00e3o Vicente 225, Rio de Janeiro, RJ, Brazil","institution_ids":["https://openalex.org/I2699952"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044844342","display_name":"Renato Carmo","orcid":"https://orcid.org/0000-0003-2630-6852"},"institutions":[{"id":"https://openalex.org/I17974374","display_name":"Universidade de S\u00e3o Paulo","ror":"https://ror.org/036rp1748","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]},{"id":"https://openalex.org/I52418104","display_name":"Universidade Federal do Paran\u00e1","ror":"https://ror.org/05syd6y78","country_code":"BR","type":"education","lineage":["https://openalex.org/I52418104"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Renato Carmo","raw_affiliation_strings":["Departamento de Inform\u00e1tica da, Universidade Federal do Paran\u00e1 Centro Polit\u00e9cnico da UFPR, 81531\u2013990, Curitiba, PR, Brazil","Instituto de Matem\u00e1tica e Estat\u00edstica da, Universidade de S\u00e3o Paulo Rua do Mat\u00e3o, 1010, 05508\u2013090, S\u00e3o Paulo, SP, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Inform\u00e1tica da, Universidade Federal do Paran\u00e1 Centro Polit\u00e9cnico da UFPR, 81531\u2013990, Curitiba, PR, Brazil","institution_ids":["https://openalex.org/I52418104"]},{"raw_affiliation_string":"Instituto de Matem\u00e1tica e Estat\u00edstica da, Universidade de S\u00e3o Paulo Rua do Mat\u00e3o, 1010, 05508\u2013090, S\u00e3o Paulo, SP, Brazil","institution_ids":["https://openalex.org/I17974374"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025621521","display_name":"Yoshiharu Kohayakawa","orcid":"https://orcid.org/0000-0001-7841-157X"},"institutions":[{"id":"https://openalex.org/I17974374","display_name":"Universidade de S\u00e3o Paulo","ror":"https://ror.org/036rp1748","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Yoshiharu Kohayakawa","raw_affiliation_strings":["Instituto de Matem\u00e1tica e Estat\u00edstica da, Universidade de S\u00e3o Paulo Rua do Mat\u00e3o, 1010, 05508\u2013090, S\u00e3o Paulo, SP, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Matem\u00e1tica e Estat\u00edstica da, Universidade de S\u00e3o Paulo Rua do Mat\u00e3o, 1010, 05508\u2013090, S\u00e3o Paulo, SP, Brazil","institution_ids":["https://openalex.org/I17974374"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"6","last_page":"15"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9997000098228455,"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":0.9997000098228455,"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":0.9990000128746033,"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/T10538","display_name":"Data Mining Algorithms and Applications","score":0.9825999736785889,"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/tuple","display_name":"Tuple","score":0.8890565037727356},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.6386526226997375},{"id":"https://openalex.org/keywords/conjunctive-query","display_name":"Conjunctive query","score":0.6371492147445679},{"id":"https://openalex.org/keywords/boolean-conjunctive-query","display_name":"Boolean conjunctive query","score":0.6107509732246399},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5853821635246277},{"id":"https://openalex.org/keywords/query-optimization","display_name":"Query optimization","score":0.529228925704956},{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.5284531116485596},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.4597068428993225},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.41949954628944397},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.402357280254364},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.3681139349937439},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.36517035961151123},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3487634062767029},{"id":"https://openalex.org/keywords/sargable","display_name":"Sargable","score":0.34392082691192627},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.33618593215942383},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.20983976125717163},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.19929903745651245},{"id":"https://openalex.org/keywords/search-engine","display_name":"Search engine","score":0.1136411726474762},{"id":"https://openalex.org/keywords/web-search-query","display_name":"Web search query","score":0.09464427828788757},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.07181519269943237}],"concepts":[{"id":"https://openalex.org/C118930307","wikidata":"https://www.wikidata.org/wiki/Q600590","display_name":"Tuple","level":2,"score":0.8890565037727356},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.6386526226997375},{"id":"https://openalex.org/C65647387","wikidata":"https://www.wikidata.org/wiki/Q1781706","display_name":"Conjunctive query","level":3,"score":0.6371492147445679},{"id":"https://openalex.org/C24755975","wikidata":"https://www.wikidata.org/wiki/Q4943354","display_name":"Boolean conjunctive query","level":5,"score":0.6107509732246399},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5853821635246277},{"id":"https://openalex.org/C157692150","wikidata":"https://www.wikidata.org/wiki/Q2919848","display_name":"Query optimization","level":2,"score":0.529228925704956},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.5284531116485596},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.4597068428993225},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.41949954628944397},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.402357280254364},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.3681139349937439},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.36517035961151123},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3487634062767029},{"id":"https://openalex.org/C192939062","wikidata":"https://www.wikidata.org/wiki/Q104840822","display_name":"Sargable","level":4,"score":0.34392082691192627},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.33618593215942383},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.20983976125717163},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.19929903745651245},{"id":"https://openalex.org/C97854310","wikidata":"https://www.wikidata.org/wiki/Q19541","display_name":"Search engine","level":2,"score":0.1136411726474762},{"id":"https://openalex.org/C164120249","wikidata":"https://www.wikidata.org/wiki/Q995982","display_name":"Web search query","level":3,"score":0.09464427828788757},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.07181519269943237},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-540-24698-5_5","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-24698-5_5","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":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W124828836","https://openalex.org/W1519876418","https://openalex.org/W1578017951","https://openalex.org/W1971849893","https://openalex.org/W2023146810","https://openalex.org/W2060883486","https://openalex.org/W2125437043","https://openalex.org/W2144462891","https://openalex.org/W2561675875"],"related_works":["https://openalex.org/W1967430536","https://openalex.org/W3092785261","https://openalex.org/W3107700780","https://openalex.org/W3047081115","https://openalex.org/W3125756434","https://openalex.org/W1505212787","https://openalex.org/W2340557151","https://openalex.org/W609190756","https://openalex.org/W3170346938","https://openalex.org/W2387635197"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
