{"id":"https://openalex.org/W4379135667","doi":"https://doi.org/10.1145/3584372.3588667","title":"Conjunctive Queries With Self-Joins, Towards a Fine-Grained Enumeration Complexity Analysis","display_name":"Conjunctive Queries With Self-Joins, Towards a Fine-Grained Enumeration Complexity Analysis","publication_year":2023,"publication_date":"2023-06-02","ids":{"openalex":"https://openalex.org/W4379135667","doi":"https://doi.org/10.1145/3584372.3588667"},"language":"en","primary_location":{"id":"doi:10.1145/3584372.3588667","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3584372.3588667","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 42nd ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems","raw_type":"proceedings-article"},"type":"article","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/A5030337488","display_name":"Nofar Carmeli","orcid":"https://orcid.org/0000-0003-0673-5510"},"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/I2746051580","display_name":"Universit\u00e9 Paris Sciences et Lettres","ror":"https://ror.org/013cjyk83","country_code":"FR","type":"education","lineage":["https://openalex.org/I2746051580"]},{"id":"https://openalex.org/I29607241","display_name":"\u00c9cole Normale Sup\u00e9rieure - PSL","ror":"https://ror.org/05a0dhs15","country_code":"FR","type":"other","lineage":["https://openalex.org/I2746051580","https://openalex.org/I29607241"]},{"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":"Nofar Carmeli","raw_affiliation_strings":["DI ENS, ENS, Universit\u00e9 PSL, CNRS, Inria, Paris, France"],"raw_orcid":"https://orcid.org/0000-0003-0673-5510","affiliations":[{"raw_affiliation_string":"DI ENS, ENS, Universit\u00e9 PSL, CNRS, Inria, Paris, France","institution_ids":["https://openalex.org/I2746051580","https://openalex.org/I29607241","https://openalex.org/I1294671590","https://openalex.org/I4210161954"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042411667","display_name":"Luc Segoufin","orcid":"https://orcid.org/0000-0002-9564-7581"},"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/I29607241","display_name":"\u00c9cole Normale Sup\u00e9rieure - PSL","ror":"https://ror.org/05a0dhs15","country_code":"FR","type":"other","lineage":["https://openalex.org/I2746051580","https://openalex.org/I29607241"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Luc Segoufin","raw_affiliation_strings":["INRIA, ENS Paris, PSL, Paris, France"],"raw_orcid":"https://orcid.org/0000-0002-9564-7581","affiliations":[{"raw_affiliation_string":"INRIA, ENS Paris, PSL, Paris, France","institution_ids":["https://openalex.org/I1326498283","https://openalex.org/I29607241"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.8791,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.74155142,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"277","last_page":"289"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9977999925613403,"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":0.9977999925613403,"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":0.9972000122070312,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9848999977111816,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/joins","display_name":"Joins","score":0.8972526788711548},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7554051876068115},{"id":"https://openalex.org/keywords/mathematical-proof","display_name":"Mathematical proof","score":0.6643990874290466},{"id":"https://openalex.org/keywords/conjunctive-query","display_name":"Conjunctive query","score":0.6443651914596558},{"id":"https://openalex.org/keywords/enumeration","display_name":"Enumeration","score":0.6299793720245361},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.5212831497192383},{"id":"https://openalex.org/keywords/preprocessor","display_name":"Preprocessor","score":0.4341365694999695},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2309456765651703},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.21434557437896729},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.20096823573112488},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.17140793800354004},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09661084413528442},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.09417456388473511}],"concepts":[{"id":"https://openalex.org/C2778692605","wikidata":"https://www.wikidata.org/wiki/Q4041866","display_name":"Joins","level":2,"score":0.8972526788711548},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7554051876068115},{"id":"https://openalex.org/C108710211","wikidata":"https://www.wikidata.org/wiki/Q11538","display_name":"Mathematical proof","level":2,"score":0.6643990874290466},{"id":"https://openalex.org/C65647387","wikidata":"https://www.wikidata.org/wiki/Q1781706","display_name":"Conjunctive query","level":3,"score":0.6443651914596558},{"id":"https://openalex.org/C156340839","wikidata":"https://www.wikidata.org/wiki/Q2704791","display_name":"Enumeration","level":2,"score":0.6299793720245361},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5212831497192383},{"id":"https://openalex.org/C34736171","wikidata":"https://www.wikidata.org/wiki/Q918333","display_name":"Preprocessor","level":2,"score":0.4341365694999695},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2309456765651703},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.21434557437896729},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.20096823573112488},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.17140793800354004},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09661084413528442},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.09417456388473511},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3584372.3588667","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3584372.3588667","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 42nd ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4032234667","display_name":"Efficient Query answering Under UpdateS","funder_award_id":"ANR-19-CE48-0019","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G5838787665","display_name":"PaRis Artificial Intelligence Research InstitutE","funder_award_id":"ANR-19-P3IA-0001","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G626190807","display_name":null,"funder_award_id":"19-P3IA-0001","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G6730910410","display_name":null,"funder_award_id":"ANR-19- CE48-0019, ANR-19-P3IA-0001","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"},{"id":"https://openalex.org/G8318455765","display_name":null,"funder_award_id":"ANR-19","funder_id":"https://openalex.org/F4320320883","funder_display_name":"Agence Nationale de la Recherche"}],"funders":[{"id":"https://openalex.org/F4320320883","display_name":"Agence Nationale de la Recherche","ror":"https://ror.org/00rbzpz17"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W52840101","https://openalex.org/W1979514837","https://openalex.org/W2014984050","https://openalex.org/W3006809958","https://openalex.org/W3082353674","https://openalex.org/W3172388843","https://openalex.org/W4300618478","https://openalex.org/W4307206465","https://openalex.org/W6602175484"],"related_works":["https://openalex.org/W108845024","https://openalex.org/W2088925915","https://openalex.org/W4300125793","https://openalex.org/W2578985712","https://openalex.org/W2382891957","https://openalex.org/W2393491644","https://openalex.org/W2406961474","https://openalex.org/W2143566611","https://openalex.org/W4297453533","https://openalex.org/W3173375004"],"abstract_inverted_index":{"Even":[0],"though":[1],"query":[2],"evaluation":[3],"is":[4,83],"a":[5,145],"fundamental":[6],"task":[7],"in":[8],"databases,":[9],"known":[10,39,54,146],"classifications":[11],"of":[12,35,52,152,170,172],"conjunctive":[13],"queries":[14,22,104,153,171,176],"by":[15,48],"their":[16],"fine-grained":[17],"complexity":[18],"only":[19],"apply":[20],"to":[21,41,59,66,76,101,114,125,143,149],"without":[23],"self-joins.":[24,155],"We":[25,45,93,140],"study":[26,157],"how":[27,142],"self-joins":[28,100],"affect":[29],"enumeration":[30,95],"complexity,":[31],"with":[32,57,64,120,154,177],"the":[33,38,50,109,121,130,137,168],"aim":[34],"building":[36],"upon":[37],"results":[40],"achieve":[42],"general":[43],"classifications.":[44],"do":[46],"this":[47,73,81,91],"examining":[49],"extension":[51],"two":[53],"dichotomies:":[55],"one":[56,63],"respect":[58,65],"linear":[60,70],"delay,":[61],"and":[62,161,166,175],"constant":[67],"delay":[68],"after":[69],"preprocessing.":[71],"As":[72],"turns":[74],"out":[75],"be":[77,118],"an":[78,86],"intricate":[79],"investigation,":[80],"paper":[82],"structured":[84],"as":[85],"example-driven":[87],"discussion":[88],"that":[89,97,105],"initiates":[90],"analysis.":[92],"show":[94,141],"algorithms":[96],"rely":[98],"on":[99],"efficiently":[102],"evaluate":[103],"otherwise":[106],"(i.e.,":[107],"if":[108],"relation":[110],"names":[111],"were":[112],"replaced":[113],"eliminate":[115],"self-joins)":[116],"cannot":[117],"answered":[119],"same":[122],"guarantees.":[123],"Due":[124],"these":[126],"additional":[127],"tractable":[128],"cases,":[129],"hardness":[131,151],"proofs":[132],"are":[133],"more":[134],"complex":[135],"than":[136],"self-join-free":[138],"case.":[139],"harness":[144],"tagging":[147],"technique":[148],"prove":[150],"Our":[156],"offers":[158],"sufficient":[159],"conditions":[160,163],"necessary":[162],"for":[164],"tractability":[165],"settles":[167],"cases":[169,182],"low":[173],"arity":[174],"cyclic":[178],"cores.":[179],"Nevertheless,":[180],"many":[181],"remain":[183],"open.":[184]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-07-09T07:52:08.696243","created_date":"2025-10-10T00:00:00"}