{"id":"https://openalex.org/W2739885613","doi":"https://doi.org/10.24963/ijcai.2017/138","title":"On Querying Incomplete Information in Databases under Bag Semantics","display_name":"On Querying Incomplete Information in Databases under Bag Semantics","publication_year":2017,"publication_date":"2017-07-28","ids":{"openalex":"https://openalex.org/W2739885613","doi":"https://doi.org/10.24963/ijcai.2017/138","mag":"2739885613"},"language":"en","primary_location":{"id":"doi:10.24963/ijcai.2017/138","is_oa":true,"landing_page_url":"https://doi.org/10.24963/ijcai.2017/138","pdf_url":"https://www.ijcai.org/proceedings/2017/0138.pdf","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.ijcai.org/proceedings/2017/0138.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5069002162","display_name":"Marco Console","orcid":"https://orcid.org/0009-0004-5526-019X"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Marco Console","raw_affiliation_strings":["University of Edinburgh"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Edinburgh","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089657548","display_name":"Paolo Guagliardo","orcid":"https://orcid.org/0000-0003-0756-5787"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Paolo Guagliardo","raw_affiliation_strings":["University of Edinburgh"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Edinburgh","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5069883356","display_name":"Leonid Libkin","orcid":"https://orcid.org/0000-0002-6698-2735"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Leonid Libkin","raw_affiliation_strings":["University of Edinburgh"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Edinburgh","institution_ids":["https://openalex.org/I98677209"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I98677209"],"apc_list":null,"apc_paid":null,"fwci":2.7904,"has_fulltext":true,"cited_by_count":18,"citation_normalized_percentile":{"value":0.92588085,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"993","last_page":"999"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9994000196456909,"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/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9994000196456909,"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":0.9991999864578247,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9987000226974487,"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/tuple","display_name":"Tuple","score":0.7516661286354065},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7230072021484375},{"id":"https://openalex.org/keywords/semantics","display_name":"Semantics (computer science)","score":0.6518136262893677},{"id":"https://openalex.org/keywords/conjunctive-query","display_name":"Conjunctive query","score":0.6313075423240662},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5538755059242249},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.5495409965515137},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.5020890235900879},{"id":"https://openalex.org/keywords/rewriting","display_name":"Rewriting","score":0.4838775396347046},{"id":"https://openalex.org/keywords/query-language","display_name":"Query language","score":0.4276602566242218},{"id":"https://openalex.org/keywords/boolean-conjunctive-query","display_name":"Boolean conjunctive query","score":0.42164090275764465},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4165722727775574},{"id":"https://openalex.org/keywords/sargable","display_name":"Sargable","score":0.36620208621025085},{"id":"https://openalex.org/keywords/web-search-query","display_name":"Web search query","score":0.22045254707336426},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20148560404777527},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.14071372151374817},{"id":"https://openalex.org/keywords/search-engine","display_name":"Search engine","score":0.10170558094978333},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.09587204456329346}],"concepts":[{"id":"https://openalex.org/C118930307","wikidata":"https://www.wikidata.org/wiki/Q600590","display_name":"Tuple","level":2,"score":0.7516661286354065},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7230072021484375},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.6518136262893677},{"id":"https://openalex.org/C65647387","wikidata":"https://www.wikidata.org/wiki/Q1781706","display_name":"Conjunctive query","level":3,"score":0.6313075423240662},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5538755059242249},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.5495409965515137},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.5020890235900879},{"id":"https://openalex.org/C154690210","wikidata":"https://www.wikidata.org/wiki/Q1668499","display_name":"Rewriting","level":2,"score":0.4838775396347046},{"id":"https://openalex.org/C192028432","wikidata":"https://www.wikidata.org/wiki/Q845739","display_name":"Query language","level":2,"score":0.4276602566242218},{"id":"https://openalex.org/C24755975","wikidata":"https://www.wikidata.org/wiki/Q4943354","display_name":"Boolean conjunctive query","level":5,"score":0.42164090275764465},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4165722727775574},{"id":"https://openalex.org/C192939062","wikidata":"https://www.wikidata.org/wiki/Q104840822","display_name":"Sargable","level":4,"score":0.36620208621025085},{"id":"https://openalex.org/C164120249","wikidata":"https://www.wikidata.org/wiki/Q995982","display_name":"Web search query","level":3,"score":0.22045254707336426},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20148560404777527},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.14071372151374817},{"id":"https://openalex.org/C97854310","wikidata":"https://www.wikidata.org/wiki/Q19541","display_name":"Search engine","level":2,"score":0.10170558094978333},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.09587204456329346}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.24963/ijcai.2017/138","is_oa":true,"landing_page_url":"https://doi.org/10.24963/ijcai.2017/138","pdf_url":"https://www.ijcai.org/proceedings/2017/0138.pdf","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence","raw_type":"proceedings-article"},{"id":"pmh:oai:iris.uniroma1.it:11573/1561276","is_oa":true,"landing_page_url":"https://hdl.handle.net/11573/1561276","pdf_url":"https://iris.uniroma1.it/bitstream/11573/1561276/1/Console_On-Querying_2017.pdf","source":{"id":"https://openalex.org/S4377196107","display_name":"IRIS Research product catalog (Sapienza University of Rome)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:oai:pure.ed.ac.uk:openaire/e282a54e-1494-414c-af02-ed665d41ecdf","is_oa":true,"landing_page_url":"https://www.research.ed.ac.uk/en/publications/e282a54e-1494-414c-af02-ed665d41ecdf","pdf_url":null,"source":{"id":"https://openalex.org/S4406922455","display_name":"Edinburgh Research Explorer","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Console, M, Guagliardo, P & Libkin, L 2017, On Querying Incomplete Information in Databases under Bag Semantics. in Proceedings of the 26th International Joint Conference on Artificial Intelligence. pp. 993-999, 26th International Joint Conference on Artificial Intelligence, Melbourne, Victoria, Australia, 19/08/17. https://doi.org/10.24963/ijcai.2017/138","raw_type":"contributionToPeriodical"},{"id":"pmh:oai:pure.ed.ac.uk:publications/e282a54e-1494-414c-af02-ed665d41ecdf","is_oa":false,"landing_page_url":"https://www.ijcai.org/Proceedings/2017/0138","pdf_url":null,"source":{"id":"https://openalex.org/S4406922455","display_name":"Edinburgh Research Explorer","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":""}],"best_oa_location":{"id":"doi:10.24963/ijcai.2017/138","is_oa":true,"landing_page_url":"https://doi.org/10.24963/ijcai.2017/138","pdf_url":"https://www.ijcai.org/proceedings/2017/0138.pdf","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4378070110","display_name":null,"funder_award_id":"N023056","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G5458651130","display_name":null,"funder_award_id":"M025268","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2739885613.pdf","grobid_xml":"https://content.openalex.org/works/W2739885613.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W80728659","https://openalex.org/W88577015","https://openalex.org/W207289846","https://openalex.org/W1529207010","https://openalex.org/W1551808273","https://openalex.org/W1558832481","https://openalex.org/W1979514837","https://openalex.org/W1981545838","https://openalex.org/W1985239372","https://openalex.org/W1990391007","https://openalex.org/W1992673035","https://openalex.org/W2001276882","https://openalex.org/W2029138494","https://openalex.org/W2032728598","https://openalex.org/W2048531653","https://openalex.org/W2050171146","https://openalex.org/W2056177422","https://openalex.org/W2062796915","https://openalex.org/W2097244109","https://openalex.org/W2105486835","https://openalex.org/W2134978478","https://openalex.org/W2137862151","https://openalex.org/W2156717879","https://openalex.org/W2283238855","https://openalex.org/W2297697128","https://openalex.org/W2431688250","https://openalex.org/W4205204813","https://openalex.org/W4206031975","https://openalex.org/W4230795148","https://openalex.org/W6608315210","https://openalex.org/W6649732990","https://openalex.org/W6657893237","https://openalex.org/W6677187490"],"related_works":["https://openalex.org/W1967430536","https://openalex.org/W3107700780","https://openalex.org/W1505212787","https://openalex.org/W3092785261","https://openalex.org/W2949144621","https://openalex.org/W2340557151","https://openalex.org/W3047081115","https://openalex.org/W4387929624","https://openalex.org/W3170346938","https://openalex.org/W4282550487"],"abstract_inverted_index":{"Querying":[0],"incomplete":[1,44],"data":[2,9],"is":[3,92,124],"an":[4,43],"important":[5],"task":[6],"both":[7],"in":[8,12,37,51,94,113],"management,":[10],"and":[11,70,193],"many":[13],"AI":[14],"applications":[15],"that":[16,32,89,118,162],"use":[17,78,147],"query":[18,71,114],"rewriting":[19],"to":[20,150,158,175,197,200],"take":[21],"advantage":[22],"of":[23,58,87,105,108,110,121,133,170,184],"relational":[24,53],"database":[25],"technology.":[26],"Usually":[27],"one":[28],"looks":[29],"for":[30,141,154,166],"answers":[31,63,72,157],"are":[33,73],"certain,":[34],"i.e.,":[35],"true":[36],"every":[38],"possible":[39],"world":[40],"represented":[41],"by":[42],"database.":[45],"For":[46,84],"positive":[47,52,122],"queries,":[48,60],"expressed":[49],"either":[50],"algebra":[54],"or":[55],"as":[56,177],"unions":[57],"conjunctive":[59],"finding":[61,129],"such":[62],"can":[64,135],"be":[65,137,173],"done":[66,138],"efficiently":[67],"when":[68],"databases":[69,76],"sets.":[74],"Real-life":[75],"however":[77],"bag,":[79],"rather":[80],"than":[81],"set,":[82],"semantics.":[83,168],"bags,":[85,176],"instead":[86],"saying":[88],"a":[90],"tuple":[91,112],"certainly":[93],"the":[95,103,106,111,119,130,181],"answer,":[96],"we":[97,194],"have":[98,163],"more":[99],"detailed":[100],"information:":[101],"namely,":[102],"range":[104],"numbers":[107],"occurrences":[109,134],"answers.":[115],"We":[116,146],"show":[117,195],"behavior":[120],"queries":[123,161],"different":[125],"under":[126],"bag":[127,201],"semantics:":[128],"minimum":[131],"number":[132],"still":[136],"efficiently,":[139],"but":[140,186],"maximum":[142],"it":[143,178,199],"becomes":[144],"intractable.":[145],"these":[148],"results":[149],"investigate":[151],"approximation":[152],"schemes":[153],"computing":[155],"certain":[156],"arbitrary":[159],"first-order":[160],"been":[164],"proposed":[165],"set":[167],"One":[169],"them":[171],"cannot":[172],"adapted":[174],"relies":[179],"on":[180],"intractable":[182],"maxima":[183],"occurrences,":[185],"another":[187],"scheme":[188],"only":[189],"deals":[190],"with":[191],"minima,":[192],"how":[196],"adapt":[198],"semantics":[202],"without":[203],"losing":[204],"efficiency.":[205]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":1}],"updated_date":"2026-07-02T09:51:11.867554","created_date":"2017-08-08T00:00:00"}