{"id":"https://openalex.org/W2953583711","doi":"https://doi.org/10.1007/978-3-030-22996-2_10","title":"Complexity of Conjunctive Regular Path Query Homomorphisms","display_name":"Complexity of Conjunctive Regular Path Query Homomorphisms","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2953583711","doi":"https://doi.org/10.1007/978-3-030-22996-2_10","mag":"2953583711"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-030-22996-2_10","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-22996-2_10","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":"book-chapter","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://hal.science/hal-02288666","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037054433","display_name":"Laurent Beaudou","orcid":"https://orcid.org/0000-0003-1959-6855"},"institutions":[{"id":"https://openalex.org/I198244214","display_name":"Universit\u00e9 Clermont Auvergne","ror":"https://ror.org/01a8ajp46","country_code":"FR","type":"education","lineage":["https://openalex.org/I198244214"]},{"id":"https://openalex.org/I4210099416","display_name":"Laboratoire d'Informatique, de Mod\u00e9lisation et d'Optimisation des Syst\u00e8mes","ror":"https://ror.org/00t3fpp34","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I198244214","https://openalex.org/I198244214","https://openalex.org/I203339264","https://openalex.org/I205703379","https://openalex.org/I3019848993","https://openalex.org/I4210099416","https://openalex.org/I4210123221","https://openalex.org/I4210159245","https://openalex.org/I4387154249"]},{"id":"https://openalex.org/I118501908","display_name":"National Research University Higher School of Economics","ror":"https://ror.org/055f7t516","country_code":"RU","type":"education","lineage":["https://openalex.org/I118501908"]}],"countries":["FR","RU"],"is_corresponding":false,"raw_author_name":"Laurent Beaudou","raw_affiliation_strings":["Higher School of Economics, National Research University, 3 Kochnovsky Proezd, Moscow, Russia","LIMOS, Universit\u00e9 Clermont Auvergne, Aubi\u00e8re, France"],"affiliations":[{"raw_affiliation_string":"Higher School of Economics, National Research University, 3 Kochnovsky Proezd, Moscow, Russia","institution_ids":["https://openalex.org/I118501908"]},{"raw_affiliation_string":"LIMOS, Universit\u00e9 Clermont Auvergne, Aubi\u00e8re, France","institution_ids":["https://openalex.org/I4210099416","https://openalex.org/I198244214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039055198","display_name":"Florent Foucaud","orcid":"https://orcid.org/0000-0001-8198-693X"},"institutions":[{"id":"https://openalex.org/I4210099416","display_name":"Laboratoire d'Informatique, de Mod\u00e9lisation et d'Optimisation des Syst\u00e8mes","ror":"https://ror.org/00t3fpp34","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I198244214","https://openalex.org/I198244214","https://openalex.org/I203339264","https://openalex.org/I205703379","https://openalex.org/I3019848993","https://openalex.org/I4210099416","https://openalex.org/I4210123221","https://openalex.org/I4210159245","https://openalex.org/I4387154249"]},{"id":"https://openalex.org/I198244214","display_name":"Universit\u00e9 Clermont Auvergne","ror":"https://ror.org/01a8ajp46","country_code":"FR","type":"education","lineage":["https://openalex.org/I198244214"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Florent Foucaud","raw_affiliation_strings":["LIMOS, Universit\u00e9 Clermont Auvergne, Aubi\u00e8re, France"],"affiliations":[{"raw_affiliation_string":"LIMOS, Universit\u00e9 Clermont Auvergne, Aubi\u00e8re, France","institution_ids":["https://openalex.org/I4210099416","https://openalex.org/I198244214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044720498","display_name":"Florent Madelaine","orcid":"https://orcid.org/0000-0002-8528-7105"},"institutions":[{"id":"https://openalex.org/I197681013","display_name":"Universit\u00e9 Paris-Est Cr\u00e9teil","ror":"https://ror.org/05ggc9x40","country_code":"FR","type":"education","lineage":["https://openalex.org/I197681013"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"Florent Madelaine","raw_affiliation_strings":["LACL, Universit\u00e9 Paris-Est Cr\u00e9teil, Cr\u00e9teil, France"],"affiliations":[{"raw_affiliation_string":"LACL, Universit\u00e9 Paris-Est Cr\u00e9teil, Cr\u00e9teil, France","institution_ids":["https://openalex.org/I197681013"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5107241504","display_name":"Lhouari Nourine","orcid":null},"institutions":[{"id":"https://openalex.org/I198244214","display_name":"Universit\u00e9 Clermont Auvergne","ror":"https://ror.org/01a8ajp46","country_code":"FR","type":"education","lineage":["https://openalex.org/I198244214"]},{"id":"https://openalex.org/I4210099416","display_name":"Laboratoire d'Informatique, de Mod\u00e9lisation et d'Optimisation des Syst\u00e8mes","ror":"https://ror.org/00t3fpp34","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I198244214","https://openalex.org/I198244214","https://openalex.org/I203339264","https://openalex.org/I205703379","https://openalex.org/I3019848993","https://openalex.org/I4210099416","https://openalex.org/I4210123221","https://openalex.org/I4210159245","https://openalex.org/I4387154249"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Lhouari Nourine","raw_affiliation_strings":["LIMOS, Universit\u00e9 Clermont Auvergne, Aubi\u00e8re, France"],"affiliations":[{"raw_affiliation_string":"LIMOS, Universit\u00e9 Clermont Auvergne, Aubi\u00e8re, France","institution_ids":["https://openalex.org/I4210099416","https://openalex.org/I198244214"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008837297","display_name":"Ga\u00e9tan Richard","orcid":"https://orcid.org/0000-0003-3709-2909"},"institutions":[{"id":"https://openalex.org/I4210139483","display_name":"GREYC","ror":"https://ror.org/043749971","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I194210350","https://openalex.org/I4210105918","https://openalex.org/I4210105918","https://openalex.org/I4210139483","https://openalex.org/I4210159245","https://openalex.org/I98702875"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Ga\u00e9tan Richard","raw_affiliation_strings":["GREYC, Universit\u00e9 Caen Normandie, Caen, France"],"affiliations":[{"raw_affiliation_string":"GREYC, Universit\u00e9 Caen Normandie, Caen, France","institution_ids":["https://openalex.org/I4210139483"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5044720498"],"corresponding_institution_ids":["https://openalex.org/I197681013"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.12743823,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"108","last_page":"119"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","score":0.9990000128746033,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9984999895095825,"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/homomorphism","display_name":"Homomorphism","score":0.7684149742126465},{"id":"https://openalex.org/keywords/digraph","display_name":"Digraph","score":0.7241038680076599},{"id":"https://openalex.org/keywords/unary-operation","display_name":"Unary operation","score":0.6903811693191528},{"id":"https://openalex.org/keywords/conjunctive-query","display_name":"Conjunctive query","score":0.5690321922302246},{"id":"https://openalex.org/keywords/alphabet","display_name":"Alphabet","score":0.5654433369636536},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5468383431434631},{"id":"https://openalex.org/keywords/graph-homomorphism","display_name":"Graph homomorphism","score":0.49085575342178345},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.46811383962631226},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.44935017824172974},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.44574418663978577},{"id":"https://openalex.org/keywords/graph-database","display_name":"Graph database","score":0.4210372865200043},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3855786621570587},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.34079962968826294},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.335316002368927},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.23130816221237183},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.1546800434589386},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.10067033767700195}],"concepts":[{"id":"https://openalex.org/C4042151","wikidata":"https://www.wikidata.org/wiki/Q215111","display_name":"Homomorphism","level":2,"score":0.7684149742126465},{"id":"https://openalex.org/C2779145032","wikidata":"https://www.wikidata.org/wiki/Q191494","display_name":"Digraph","level":2,"score":0.7241038680076599},{"id":"https://openalex.org/C78023250","wikidata":"https://www.wikidata.org/wiki/Q657596","display_name":"Unary operation","level":2,"score":0.6903811693191528},{"id":"https://openalex.org/C65647387","wikidata":"https://www.wikidata.org/wiki/Q1781706","display_name":"Conjunctive query","level":3,"score":0.5690321922302246},{"id":"https://openalex.org/C112876837","wikidata":"https://www.wikidata.org/wiki/Q837518","display_name":"Alphabet","level":2,"score":0.5654433369636536},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5468383431434631},{"id":"https://openalex.org/C7036158","wikidata":"https://www.wikidata.org/wiki/Q3385162","display_name":"Graph homomorphism","level":5,"score":0.49085575342178345},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.46811383962631226},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.44935017824172974},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.44574418663978577},{"id":"https://openalex.org/C176225458","wikidata":"https://www.wikidata.org/wiki/Q595971","display_name":"Graph database","level":3,"score":0.4210372865200043},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3855786621570587},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.34079962968826294},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.335316002368927},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.23130816221237183},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.1546800434589386},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.10067033767700195},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C149530733","wikidata":"https://www.wikidata.org/wiki/Q5597091","display_name":"Graph power","level":4,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1007/978-3-030-22996-2_10","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-22996-2_10","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"},{"id":"pmh:oai:HAL:hal-02288666v1","is_oa":true,"landing_page_url":"https://hal.science/hal-02288666","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://cie2019.webspace.durham.ac.uk/","raw_type":"Conference papers"},{"id":"pmh:oai:HAL:hal-04999117v1","is_oa":false,"landing_page_url":"https://hal.science/hal-04999117","pdf_url":null,"source":{"id":"https://openalex.org/S4406922454","display_name":"SPIRE - Sciences Po Institutional REpository","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":"2023","raw_type":"Preprints, Working Papers, ..."}],"best_oa_location":{"id":"pmh:oai:HAL:hal-02288666v1","is_oa":true,"landing_page_url":"https://hal.science/hal-02288666","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://cie2019.webspace.durham.ac.uk/","raw_type":"Conference papers"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","score":0.550000011920929,"display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W1655990431","https://openalex.org/W1965377399","https://openalex.org/W1982206794","https://openalex.org/W1984218983","https://openalex.org/W1998084650","https://openalex.org/W2026745535","https://openalex.org/W2033176822","https://openalex.org/W2056865152","https://openalex.org/W2059052871","https://openalex.org/W2073279331","https://openalex.org/W2077575555","https://openalex.org/W2119422073","https://openalex.org/W2135282325","https://openalex.org/W2150339067","https://openalex.org/W2480499276","https://openalex.org/W2614693988","https://openalex.org/W2742329423","https://openalex.org/W2765129714","https://openalex.org/W2771362234","https://openalex.org/W2962785950","https://openalex.org/W2963768895","https://openalex.org/W4248948614","https://openalex.org/W4254380579"],"related_works":["https://openalex.org/W2888918612","https://openalex.org/W2166285859","https://openalex.org/W2607958338","https://openalex.org/W2952009832","https://openalex.org/W1525190559","https://openalex.org/W2090809929","https://openalex.org/W4297912078","https://openalex.org/W2810282945","https://openalex.org/W4295102041","https://openalex.org/W3174017694"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
