{"id":"https://openalex.org/W3183994043","doi":"https://doi.org/10.24963/kr.2021/14","title":"Capturing Homomorphism-Closed Decidable Queries with Existential Rules","display_name":"Capturing Homomorphism-Closed Decidable Queries with Existential Rules","publication_year":2021,"publication_date":"2021-09-01","ids":{"openalex":"https://openalex.org/W3183994043","doi":"https://doi.org/10.24963/kr.2021/14","mag":"3183994043"},"language":"en","primary_location":{"id":"doi:10.24963/kr.2021/14","is_oa":true,"landing_page_url":"https://doi.org/10.24963/kr.2021/14","pdf_url":"https://proceedings.kr.org/2021/14/kr2021-0014-bourgaux-et-al.pdf","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Eighteenth International Conference on Principles of Knowledge Representation and Reasoning","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://proceedings.kr.org/2021/14/kr2021-0014-bourgaux-et-al.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5077317707","display_name":"Camille Bourgaux","orcid":"https://orcid.org/0000-0002-8806-6682"},"institutions":[{"id":"https://openalex.org/I1326498283","display_name":"Institut national de recherche en sciences et technologies du num\u00e9rique","ror":"https://ror.org/02kvxyf05","country_code":"FR","type":"government","lineage":["https://openalex.org/I1326498283"]},{"id":"https://openalex.org/I4210161954","display_name":"D\u00e9partement d'Informatique","ror":"https://ror.org/05y6rqs46","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I1326498283","https://openalex.org/I2746051580","https://openalex.org/I29607241","https://openalex.org/I4210159245","https://openalex.org/I4210161954"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Camille Bourgaux","raw_affiliation_strings":["DIENS, ENS, CNRS, PSL University & Inria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"DIENS, ENS, CNRS, PSL University & Inria","institution_ids":["https://openalex.org/I1326498283","https://openalex.org/I4210161954"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018227263","display_name":"David Carral","orcid":"https://orcid.org/0000-0001-7287-4709"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I19894307","display_name":"Universit\u00e9 de Montpellier","ror":"https://ror.org/051escj72","country_code":"FR","type":"education","lineage":["https://openalex.org/I19894307"]},{"id":"https://openalex.org/I4210101743","display_name":"Laboratoire d'Informatique, de Robotique et de Micro\u00e9lectronique de Montpellier","ror":"https://ror.org/013yean28","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I1326498283","https://openalex.org/I151295451","https://openalex.org/I19894307","https://openalex.org/I4210101743","https://openalex.org/I4210159245","https://openalex.org/I4405261681"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"David Carral","raw_affiliation_strings":["LIRMM, Inria, University of Montpellier, CNRS"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LIRMM, Inria, University of Montpellier, CNRS","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I19894307","https://openalex.org/I4210101743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087579719","display_name":"Markus Kr\u00f6tzsch","orcid":"https://orcid.org/0000-0002-9172-2601"},"institutions":[{"id":"https://openalex.org/I78650965","display_name":"Technische Universit\u00e4t Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Markus Kr\u00f6tzsch","raw_affiliation_strings":["TU Dresden","TU, Dresden,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TU Dresden","institution_ids":["https://openalex.org/I78650965"]},{"raw_affiliation_string":"TU, Dresden,","institution_ids":["https://openalex.org/I78650965"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024774718","display_name":"Sebastian Rudolph","orcid":"https://orcid.org/0000-0002-1609-2080"},"institutions":[{"id":"https://openalex.org/I78650965","display_name":"Technische Universit\u00e4t Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Sebastian Rudolph","raw_affiliation_strings":["TU Dresden","TU, Dresden,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TU Dresden","institution_ids":["https://openalex.org/I78650965"]},{"raw_affiliation_string":"TU, Dresden,","institution_ids":["https://openalex.org/I78650965"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011677564","display_name":"Micha\u00ebl Thomazo","orcid":"https://orcid.org/0000-0002-1437-6389"},"institutions":[{"id":"https://openalex.org/I1326498283","display_name":"Institut national de recherche en sciences et technologies du num\u00e9rique","ror":"https://ror.org/02kvxyf05","country_code":"FR","type":"government","lineage":["https://openalex.org/I1326498283"]},{"id":"https://openalex.org/I4210161954","display_name":"D\u00e9partement d'Informatique","ror":"https://ror.org/05y6rqs46","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I1326498283","https://openalex.org/I2746051580","https://openalex.org/I29607241","https://openalex.org/I4210159245","https://openalex.org/I4210161954"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Micha\u00ebl Thomazo","raw_affiliation_strings":["Inria, DIENS, ENS, CNRS, PSL University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Inria, DIENS, ENS, CNRS, PSL University","institution_ids":["https://openalex.org/I1326498283","https://openalex.org/I4210161954"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.5425,"has_fulltext":true,"cited_by_count":2,"citation_normalized_percentile":{"value":0.54548213,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"141","last_page":"150"},"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":0.9998000264167786,"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":0.9998000264167786,"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/decidability","display_name":"Decidability","score":0.9460527896881104},{"id":"https://openalex.org/keywords/homomorphism","display_name":"Homomorphism","score":0.8579291105270386},{"id":"https://openalex.org/keywords/converse","display_name":"Converse","score":0.7352592349052429},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6359895467758179},{"id":"https://openalex.org/keywords/argument","display_name":"Argument (complex analysis)","score":0.6216196417808533},{"id":"https://openalex.org/keywords/existentialism","display_name":"Existentialism","score":0.6063473224639893},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5515506267547607},{"id":"https://openalex.org/keywords/fragment","display_name":"Fragment (logic)","score":0.5131836533546448},{"id":"https://openalex.org/keywords/extension","display_name":"Extension (predicate logic)","score":0.48746514320373535},{"id":"https://openalex.org/keywords/conjunctive-query","display_name":"Conjunctive query","score":0.4729616045951843},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.42808374762535095},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.35358795523643494},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3208549916744232},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.2810167968273163},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.15062156319618225},{"id":"https://openalex.org/keywords/philosophy","display_name":"Philosophy","score":0.06845855712890625}],"concepts":[{"id":"https://openalex.org/C153269930","wikidata":"https://www.wikidata.org/wiki/Q430001","display_name":"Decidability","level":2,"score":0.9460527896881104},{"id":"https://openalex.org/C4042151","wikidata":"https://www.wikidata.org/wiki/Q215111","display_name":"Homomorphism","level":2,"score":0.8579291105270386},{"id":"https://openalex.org/C2776809875","wikidata":"https://www.wikidata.org/wiki/Q1375963","display_name":"Converse","level":2,"score":0.7352592349052429},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6359895467758179},{"id":"https://openalex.org/C98184364","wikidata":"https://www.wikidata.org/wiki/Q1780131","display_name":"Argument (complex analysis)","level":2,"score":0.6216196417808533},{"id":"https://openalex.org/C127882523","wikidata":"https://www.wikidata.org/wiki/Q38066","display_name":"Existentialism","level":2,"score":0.6063473224639893},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5515506267547607},{"id":"https://openalex.org/C2776235265","wikidata":"https://www.wikidata.org/wiki/Q18392052","display_name":"Fragment (logic)","level":2,"score":0.5131836533546448},{"id":"https://openalex.org/C2778029271","wikidata":"https://www.wikidata.org/wiki/Q5421931","display_name":"Extension (predicate logic)","level":2,"score":0.48746514320373535},{"id":"https://openalex.org/C65647387","wikidata":"https://www.wikidata.org/wiki/Q1781706","display_name":"Conjunctive query","level":3,"score":0.4729616045951843},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.42808374762535095},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.35358795523643494},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3208549916744232},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.2810167968273163},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.15062156319618225},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.06845855712890625},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.24963/kr.2021/14","is_oa":true,"landing_page_url":"https://doi.org/10.24963/kr.2021/14","pdf_url":"https://proceedings.kr.org/2021/14/kr2021-0014-bourgaux-et-al.pdf","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Eighteenth International Conference on Principles of Knowledge Representation and Reasoning","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2107.07811","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2107.07811","pdf_url":"https://arxiv.org/pdf/2107.07811","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"text"},{"id":"mag:3183994043","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/2107.07811v1","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"pmh:oai:HAL:lirmm-03345614v1","is_oa":true,"landing_page_url":"https://hal-lirmm.ccsd.cnrs.fr/lirmm-03345614","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"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":"https://kr2021.kbsg.rwth-aachen.de/","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"doi:10.48550/arxiv.2107.07811","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2107.07811","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.24963/kr.2021/14","is_oa":true,"landing_page_url":"https://doi.org/10.24963/kr.2021/14","pdf_url":"https://proceedings.kr.org/2021/14/kr2021-0014-bourgaux-et-al.pdf","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Eighteenth International Conference on Principles of Knowledge Representation and Reasoning","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3032849772","display_name":null,"funder_award_id":"TRR 248","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"},{"id":"https://openalex.org/G3176778049","display_name":"Complex ontological Queries over Federated and heterogenous Data","funder_award_id":"ANR-18-CE23-0003","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G4596727753","display_name":null,"funder_award_id":"389792660 (TRR","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"},{"id":"https://openalex.org/G6876561401","display_name":null,"funder_award_id":"ANR-18","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G8777520260","display_name":null,"funder_award_id":"CE23-0003","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G890954746","display_name":"TRR 248: Grundlagen verst\u00e4ndlicher SoftwareSysteme  f\u00fcr eine nachvollziehbare cyberphysische Welt","funder_award_id":"389792660","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"}],"funders":[{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"},{"id":"https://openalex.org/F4320320883","display_name":"Agence Nationale de la Recherche","ror":"https://ror.org/00rbzpz17"},{"id":"https://openalex.org/F4320321114","display_name":"Bundesministerium f\u00fcr Bildung und Forschung","ror":"https://ror.org/04pz7b180"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3183994043.pdf","grobid_xml":"https://content.openalex.org/works/W3183994043.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W1558832481","https://openalex.org/W1852280707","https://openalex.org/W2013096722","https://openalex.org/W2028222220","https://openalex.org/W2040566369","https://openalex.org/W2057069578","https://openalex.org/W2102729564","https://openalex.org/W2103738827","https://openalex.org/W2257811554","https://openalex.org/W2288402373","https://openalex.org/W2741421701","https://openalex.org/W2752197104","https://openalex.org/W2963013562","https://openalex.org/W2965221673","https://openalex.org/W6632544727","https://openalex.org/W6633513001","https://openalex.org/W6657541993","https://openalex.org/W6664528808","https://openalex.org/W6675529698"],"related_works":["https://openalex.org/W3200153506","https://openalex.org/W2079353347","https://openalex.org/W1966737172","https://openalex.org/W126873717","https://openalex.org/W2951843522","https://openalex.org/W3157697571","https://openalex.org/W2996054020","https://openalex.org/W2346299657","https://openalex.org/W1971727793","https://openalex.org/W2156541338","https://openalex.org/W2791573054","https://openalex.org/W2996410546","https://openalex.org/W2991296087","https://openalex.org/W2021891065","https://openalex.org/W1550770522","https://openalex.org/W1485296930","https://openalex.org/W2971036089","https://openalex.org/W2081973669","https://openalex.org/W2479961941","https://openalex.org/W2167738204"],"abstract_inverted_index":{"Existential":[0],"rules":[1],"are":[2,31,39],"a":[3,14,84],"very":[4],"popular":[5],"ontology-mediated":[6],"query":[7,19,52],"language":[8],"for":[9,18,66],"which":[10,67],"the":[11,48,68],"chase":[12,29,70],"represents":[13],"generic":[15],"computational":[16],"approach":[17],"answering.":[20],"It":[21],"is":[22,54,77,89],"straightforward":[23],"that":[24,38,53,87],"existential":[25,63],"rule":[26,64],"queries":[27],"exhibiting":[28],"termination":[30],"decidable":[32,51],"and":[33],"can":[34,58],"only":[35],"recognize":[36],"properties":[37],"preserved":[40],"under":[41,56],"homomorphisms.":[42],"In":[43],"this":[44,75,88],"paper,":[45],"we":[46,81],"show":[47,82],"converse:":[49],"every":[50],"closed":[55],"homomorphism":[57],"be":[59],"expressed":[60],"by":[61],"an":[62],"set":[65],"standard":[69],"universally":[71],"terminates.":[72],"Membership":[73],"in":[74],"fragment":[76],"not":[78],"decidable,":[79],"but":[80],"via":[83],"diagonalisation":[85],"argument":[86],"unavoidable.":[90]},"counts_by_year":[{"year":2022,"cited_by_count":2}],"updated_date":"2026-07-30T17:31:21.811387","created_date":"2025-10-10T00:00:00"}