{"id":"https://openalex.org/W1998052044","doi":"https://doi.org/10.1145/1989323.1989383","title":"Keyword search over relational databases","display_name":"Keyword search over relational databases","publication_year":2011,"publication_date":"2011-06-12","ids":{"openalex":"https://openalex.org/W1998052044","doi":"https://doi.org/10.1145/1989323.1989383","mag":"1998052044"},"language":"en","primary_location":{"id":"doi:10.1145/1989323.1989383","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1989323.1989383","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2011 ACM SIGMOD International Conference on Management of data","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/11380/654435","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037830808","display_name":"Sonia Bergamaschi","orcid":"https://orcid.org/0000-0001-8087-6587"},"institutions":[{"id":"https://openalex.org/I122346577","display_name":"University of Modena and Reggio Emilia","ror":"https://ror.org/02d4c4y02","country_code":"IT","type":"education","lineage":["https://openalex.org/I122346577"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Sonia Bergamaschi","raw_affiliation_strings":["University of Modena and Reggio Emilia, Italy, Modena, Italy","University of Modena and Reggio Emilia, Italy, Modena, Italy#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Modena and Reggio Emilia, Italy, Modena, Italy","institution_ids":["https://openalex.org/I122346577"]},{"raw_affiliation_string":"University of Modena and Reggio Emilia, Italy, Modena, Italy#TAB#","institution_ids":["https://openalex.org/I122346577"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077660405","display_name":"Elton Domnori","orcid":"https://orcid.org/0000-0003-2194-8848"},"institutions":[{"id":"https://openalex.org/I122346577","display_name":"University of Modena and Reggio Emilia","ror":"https://ror.org/02d4c4y02","country_code":"IT","type":"education","lineage":["https://openalex.org/I122346577"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Elton Domnori","raw_affiliation_strings":["University of Modena and Reggio Emilia, Italy, Modena, Italy","University of Modena and Reggio Emilia, Italy, Modena, Italy#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Modena and Reggio Emilia, Italy, Modena, Italy","institution_ids":["https://openalex.org/I122346577"]},{"raw_affiliation_string":"University of Modena and Reggio Emilia, Italy, Modena, Italy#TAB#","institution_ids":["https://openalex.org/I122346577"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005665643","display_name":"Francesco Guerra","orcid":"https://orcid.org/0000-0001-6864-568X"},"institutions":[{"id":"https://openalex.org/I122346577","display_name":"University of Modena and Reggio Emilia","ror":"https://ror.org/02d4c4y02","country_code":"IT","type":"education","lineage":["https://openalex.org/I122346577"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Francesco Guerra","raw_affiliation_strings":["University of Modena and Reggio Emilia, Italy, Modena, Italy","University of Modena and Reggio Emilia, Italy, Modena, Italy#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Modena and Reggio Emilia, Italy, Modena, Italy","institution_ids":["https://openalex.org/I122346577"]},{"raw_affiliation_string":"University of Modena and Reggio Emilia, Italy, Modena, Italy#TAB#","institution_ids":["https://openalex.org/I122346577"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111440822","display_name":"Raquel Trillo Lado","orcid":null},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Raquel Trillo Lado","raw_affiliation_strings":["University of Zaragoza, Zaragoza, Spain","University of Zaragoza, Zaragoza (Spain)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]},{"raw_affiliation_string":"University of Zaragoza, Zaragoza (Spain)","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046955405","display_name":"Yannis Velegrakis","orcid":"https://orcid.org/0000-0001-6332-0296"},"institutions":[{"id":"https://openalex.org/I193223587","display_name":"University of Trento","ror":"https://ror.org/05trd4x28","country_code":"IT","type":"education","lineage":["https://openalex.org/I193223587"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Yannis Velegrakis","raw_affiliation_strings":["University of Trento, Trento, Italy","University of Trento , Trento , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Trento, Trento, Italy","institution_ids":["https://openalex.org/I193223587"]},{"raw_affiliation_string":"University of Trento , Trento , Italy","institution_ids":["https://openalex.org/I193223587"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":96,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"565","last_page":"576"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9984999895095825,"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"}},"topics":[{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9984999895095825,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9984999895095825,"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":0.9976999759674072,"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":0.8768918514251709},{"id":"https://openalex.org/keywords/sql","display_name":"SQL","score":0.7435330152511597},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.6062571406364441},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.5630680322647095},{"id":"https://openalex.org/keywords/tuple","display_name":"Tuple","score":0.5583062767982483},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.5481295585632324},{"id":"https://openalex.org/keywords/database-schema","display_name":"Database schema","score":0.5035678744316101},{"id":"https://openalex.org/keywords/schema","display_name":"Schema (genetic algorithms)","score":0.5032851099967957},{"id":"https://openalex.org/keywords/query-by-example","display_name":"Query by Example","score":0.4573066532611847},{"id":"https://openalex.org/keywords/view","display_name":"View","score":0.44516441226005554},{"id":"https://openalex.org/keywords/stored-procedure","display_name":"Stored procedure","score":0.4427976906299591},{"id":"https://openalex.org/keywords/search-engine-indexing","display_name":"Search engine indexing","score":0.431036114692688},{"id":"https://openalex.org/keywords/information-schema","display_name":"Information schema","score":0.41756531596183777},{"id":"https://openalex.org/keywords/semantics","display_name":"Semantics (computer science)","score":0.41654908657073975},{"id":"https://openalex.org/keywords/database-design","display_name":"Database design","score":0.359546422958374},{"id":"https://openalex.org/keywords/database-model","display_name":"Database model","score":0.33295631408691406},{"id":"https://openalex.org/keywords/web-search-query","display_name":"Web search query","score":0.2450561225414276},{"id":"https://openalex.org/keywords/search-engine","display_name":"Search engine","score":0.15390688180923462},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.13687199354171753},{"id":"https://openalex.org/keywords/semi-structured-model","display_name":"Semi-structured model","score":0.07712748646736145}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8768918514251709},{"id":"https://openalex.org/C510870499","wikidata":"https://www.wikidata.org/wiki/Q47607","display_name":"SQL","level":2,"score":0.7435330152511597},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.6062571406364441},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.5630680322647095},{"id":"https://openalex.org/C118930307","wikidata":"https://www.wikidata.org/wiki/Q600590","display_name":"Tuple","level":2,"score":0.5583062767982483},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.5481295585632324},{"id":"https://openalex.org/C30775581","wikidata":"https://www.wikidata.org/wiki/Q632285","display_name":"Database schema","level":3,"score":0.5035678744316101},{"id":"https://openalex.org/C52146309","wikidata":"https://www.wikidata.org/wiki/Q7431116","display_name":"Schema (genetic algorithms)","level":2,"score":0.5032851099967957},{"id":"https://openalex.org/C194222762","wikidata":"https://www.wikidata.org/wiki/Q114486","display_name":"Query by Example","level":4,"score":0.4573066532611847},{"id":"https://openalex.org/C54239708","wikidata":"https://www.wikidata.org/wiki/Q1329910","display_name":"View","level":3,"score":0.44516441226005554},{"id":"https://openalex.org/C154420247","wikidata":"https://www.wikidata.org/wiki/Q846619","display_name":"Stored procedure","level":5,"score":0.4427976906299591},{"id":"https://openalex.org/C75165309","wikidata":"https://www.wikidata.org/wiki/Q2258979","display_name":"Search engine indexing","level":2,"score":0.431036114692688},{"id":"https://openalex.org/C150012506","wikidata":"https://www.wikidata.org/wiki/Q6031185","display_name":"Information schema","level":5,"score":0.41756531596183777},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.41654908657073975},{"id":"https://openalex.org/C148840519","wikidata":"https://www.wikidata.org/wiki/Q1049878","display_name":"Database design","level":2,"score":0.359546422958374},{"id":"https://openalex.org/C5968703","wikidata":"https://www.wikidata.org/wiki/Q267136","display_name":"Database model","level":3,"score":0.33295631408691406},{"id":"https://openalex.org/C164120249","wikidata":"https://www.wikidata.org/wiki/Q995982","display_name":"Web search query","level":3,"score":0.2450561225414276},{"id":"https://openalex.org/C97854310","wikidata":"https://www.wikidata.org/wiki/Q19541","display_name":"Search engine","level":2,"score":0.15390688180923462},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.13687199354171753},{"id":"https://openalex.org/C56310702","wikidata":"https://www.wikidata.org/wiki/Q2269281","display_name":"Semi-structured model","level":4,"score":0.07712748646736145},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1145/1989323.1989383","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1989323.1989383","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2011 ACM SIGMOD International Conference on Management of data","raw_type":"proceedings-article"},{"id":"pmh:oai:iris.unimore.it:11380/654435","is_oa":true,"landing_page_url":"http://hdl.handle.net/11380/654435","pdf_url":null,"source":{"id":"https://openalex.org/S4306400718","display_name":"IRIS UNIMORE (University of Modena and Reggio Emilia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I122346577","host_organization_name":"University of Modena and Reggio Emilia","host_organization_lineage":["https://openalex.org/I122346577"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:oai:iris.unitn.it:11572/88953","is_oa":false,"landing_page_url":"http://hdl.handle.net/11572/88953","pdf_url":null,"source":{"id":"https://openalex.org/S4306401913","display_name":"Institutional Research Information System (Universit\u00e0 degli Studi di Trento)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I193223587","host_organization_name":"University of Trento","host_organization_lineage":["https://openalex.org/I193223587"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:iris.unimore.it:11380/654435","is_oa":true,"landing_page_url":"http://hdl.handle.net/11380/654435","pdf_url":null,"source":{"id":"https://openalex.org/S4306400718","display_name":"IRIS UNIMORE (University of Modena and Reggio Emilia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I122346577","host_organization_name":"University of Modena and Reggio Emilia","host_organization_lineage":["https://openalex.org/I122346577"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W60246258","https://openalex.org/W99256032","https://openalex.org/W1480615301","https://openalex.org/W1486753193","https://openalex.org/W1509218010","https://openalex.org/W1646278814","https://openalex.org/W1854444541","https://openalex.org/W1970709149","https://openalex.org/W1975675300","https://openalex.org/W1983428002","https://openalex.org/W1984477806","https://openalex.org/W1989944922","https://openalex.org/W1992673035","https://openalex.org/W1995320938","https://openalex.org/W2000569744","https://openalex.org/W2008896880","https://openalex.org/W2032123413","https://openalex.org/W2066636486","https://openalex.org/W2068399589","https://openalex.org/W2074863013","https://openalex.org/W2077556543","https://openalex.org/W2079694211","https://openalex.org/W2098388305","https://openalex.org/W2105819430","https://openalex.org/W2116391761","https://openalex.org/W2117461391","https://openalex.org/W2121350579","https://openalex.org/W2126256512","https://openalex.org/W2132572594","https://openalex.org/W2137003099","https://openalex.org/W2156543375","https://openalex.org/W2159454657","https://openalex.org/W2159793945","https://openalex.org/W2164501930","https://openalex.org/W2165897980","https://openalex.org/W2170766963","https://openalex.org/W2295240344","https://openalex.org/W2467020497","https://openalex.org/W2491954325","https://openalex.org/W4234200495","https://openalex.org/W6602462998"],"related_works":["https://openalex.org/W962397878","https://openalex.org/W2090626944","https://openalex.org/W3097241194","https://openalex.org/W4312444110","https://openalex.org/W2153455914","https://openalex.org/W2029823850","https://openalex.org/W1978969411","https://openalex.org/W2031508292","https://openalex.org/W2335156424","https://openalex.org/W2007556552"],"abstract_inverted_index":{"Keyword":[0],"queries":[1,25,35,136,168],"offer":[2],"a":[3,130],"convenient":[4],"alternative":[5],"to":[6,27,42,67,104],"traditional":[7],"SQL":[8,34,138,167],"in":[9,22,86,160],"querying":[10],"relational":[11],"databases":[12,78],"with":[13,94],"large,":[14],"often":[15],"unknown,":[16],"schemas":[17],"and":[18,39,122,183],"instances.":[19],"The":[20],"challenge":[21],"answering":[23],"such":[24],"is":[26,71],"discover":[28],"their":[29,62],"intended":[30,172],"semantics,":[31],"construct":[32],"the":[33,44,56,68,76,84,108,111,113,119,141,151,161,164,171,180],"that":[36,90,169],"describe":[37,129,170],"them":[38,41],"used":[40],"retrieve":[43],"respective":[45],"tuples.":[46],"Existing":[47],"approaches":[48],"typically":[49],"rely":[50],"on":[51,55,140],"indices":[52],"built":[53],"a-priori":[54,65],"database":[57,69,120],"content.":[58],"This":[59],"seriously":[60],"limits":[61],"applicability":[63],"if":[64],"access":[66],"content":[70],"not":[72,102,148],"possible.":[73],"Examples":[74],"include":[75],"on-line":[77],"accessed":[79],"through":[80],"web":[81],"interface,":[82],"or":[83],"sources":[85],"information":[87],"integration":[88],"systems":[89],"operate":[91],"behind":[92],"wrappers":[93],"specific":[95],"query":[96,174],"capabilities.":[97],"Furthermore,":[98],"existing":[99],"literature":[100],"has":[101],"studied":[103],"its":[105],"full":[106],"extend":[107],"inter-dependencies":[109],"across":[110],"ways":[112],"different":[114],"keywords":[115],"are":[116],"mapped":[117],"into":[118,137],"values":[121],"schema":[123],"elements.":[124],"In":[125],"this":[126],"work,":[127],"we":[128],"novel":[131],"technique":[132,181],"for":[133],"translating":[134],"keyword":[135,173],"based":[139],"Munkres":[142],"(a.k.a.":[143],"Hungarian)":[144],"algorithm.":[145],"Our":[146],"approach":[147],"only":[149],"tackles":[150],"above":[152],"two":[153],"limitations,":[154],"but":[155],"it":[156],"offers":[157],"significant":[158],"improvements":[159],"identification":[162],"of":[163,179],"semantically":[165],"meaningful":[166],"semantics.":[175],"We":[176],"provide":[177],"details":[178],"implementation":[182],"an":[184],"extensive":[185],"experimental":[186],"evaluation.":[187]},"counts_by_year":[{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":10},{"year":2015,"cited_by_count":19},{"year":2014,"cited_by_count":16},{"year":2013,"cited_by_count":10},{"year":2012,"cited_by_count":11}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2016-06-24T00:00:00"}