{"id":"https://openalex.org/W7140148804","doi":"https://doi.org/10.18653/v1/2026.eacl-long.114","title":"What Breaks Knowledge Graph based RAG? Benchmarking and Empirical Insights into Reasoning under Incomplete Knowledge","display_name":"What Breaks Knowledge Graph based RAG? Benchmarking and Empirical Insights into Reasoning under Incomplete Knowledge","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7140148804","doi":"https://doi.org/10.18653/v1/2026.eacl-long.114"},"language":"en","primary_location":{"id":"doi:10.18653/v1/2026.eacl-long.114","doi":"https://doi.org/10.18653/v1/2026.eacl-long.114","is_oa":true,"landing_page_url":"https://doi.org/10.18653/v1/2026.eacl-long.114","pdf_url":"https://aclanthology.org/2026.eacl-long.114.pdf","source":{"id":"https://openalex.org/S4306418011","display_name":"Conference of the European Chapter of the Association for Computational Linguistics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://aclanthology.org/2026.eacl-long.114.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5078410337","display_name":"Dongzhuoran Zhou","orcid":"https://orcid.org/0000-0002-2387-1744","observed_orcids":["https://orcid.org/0000-0002-2387-1744"]},"institutions":[{"id":"https://openalex.org/I184942183","display_name":"University of Oslo","ror":"https://ror.org/01xtthb56","country_code":"NO","type":"education","lineage":["https://openalex.org/I184942183"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Dongzhuoran Zhou","raw_affiliation_strings":["Bosch Center for AI ,","University of Oslo ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Bosch Center for AI ,","institution_ids":[]},{"raw_affiliation_string":"University of Oslo ,","institution_ids":["https://openalex.org/I184942183"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031378587","display_name":"Yuqicheng Zhu","orcid":"https://orcid.org/0000-0001-5845-5401","observed_orcids":["https://orcid.org/0000-0001-5845-5401"]},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Yuqicheng Zhu","raw_affiliation_strings":["Bosch Center for AI ,","University of Stuttgart , 4 Amazon ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Bosch Center for AI ,","institution_ids":[]},{"raw_affiliation_string":"University of Stuttgart , 4 Amazon ,","institution_ids":["https://openalex.org/I100066346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101520275","display_name":"Xiaxia Wang","orcid":"https://orcid.org/0000-0003-4184-0754","observed_orcids":["https://orcid.org/0000-0003-4184-0754"]},"institutions":[{"id":"https://openalex.org/I40120149","display_name":"University of Oxford","ror":"https://ror.org/052gg0110","country_code":"GB","type":"education","lineage":["https://openalex.org/I40120149"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Xiaxia Wang","raw_affiliation_strings":["University of Oxford ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Oxford ,","institution_ids":["https://openalex.org/I40120149"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009003549","display_name":"Hongkuan Zhou","orcid":"https://orcid.org/0000-0001-8158-3081","observed_orcids":["https://orcid.org/0000-0001-8158-3081"]},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Hongkuan Zhou","raw_affiliation_strings":["Bosch Center for AI ,","University of Stuttgart , 4 Amazon ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Bosch Center for AI ,","institution_ids":[]},{"raw_affiliation_string":"University of Stuttgart , 4 Amazon ,","institution_ids":["https://openalex.org/I100066346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129292445","display_name":"Yuan He","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I40120149","display_name":"University of Oxford","ror":"https://ror.org/052gg0110","country_code":"GB","type":"education","lineage":["https://openalex.org/I40120149"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Yuan He","raw_affiliation_strings":["University of Oxford ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Oxford ,","institution_ids":["https://openalex.org/I40120149"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085691361","display_name":"Jiaoyan Chen","orcid":"https://orcid.org/0000-0003-4643-6750","observed_orcids":["https://orcid.org/0000-0003-4643-6750","https://orcid.org/0000-0001-8423-555X"]},"institutions":[{"id":"https://openalex.org/I28407311","display_name":"University of Manchester","ror":"https://ror.org/027m9bs27","country_code":"GB","type":"education","lineage":["https://openalex.org/I28407311"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Jiaoyan Chen","raw_affiliation_strings":["The University of Manchester ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Manchester ,","institution_ids":["https://openalex.org/I28407311"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5151591668","display_name":"Steffen Staab","orcid":"https://orcid.org/0000-0002-0780-4154","observed_orcids":["https://orcid.org/0000-0002-0780-4154"]},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]},{"id":"https://openalex.org/I43439940","display_name":"University of Southampton","ror":"https://ror.org/01ryk1543","country_code":"GB","type":"education","lineage":["https://openalex.org/I43439940"]}],"countries":["DE","GB"],"is_corresponding":false,"raw_author_name":"Steffen Staab","raw_affiliation_strings":["University of Southampton","University of Stuttgart , 4 Amazon ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Southampton","institution_ids":["https://openalex.org/I43439940"]},{"raw_affiliation_string":"University of Stuttgart , 4 Amazon ,","institution_ids":["https://openalex.org/I100066346"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025295947","display_name":"Evgeny Kharlamov","orcid":"https://orcid.org/0000-0003-3247-4166","observed_orcids":["https://orcid.org/0000-0003-3247-4166"]},"institutions":[{"id":"https://openalex.org/I184942183","display_name":"University of Oslo","ror":"https://ror.org/01xtthb56","country_code":"NO","type":"education","lineage":["https://openalex.org/I184942183"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Evgeny Kharlamov","raw_affiliation_strings":["Bosch Center for AI ,","University of Oslo ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Bosch Center for AI ,","institution_ids":[]},{"raw_affiliation_string":"University of Oslo ,","institution_ids":["https://openalex.org/I184942183"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.15736419,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2522","last_page":"2538"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10028","display_name":"Topic Modeling","score":0.9032999873161316,"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/T10028","display_name":"Topic Modeling","score":0.9032999873161316,"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/T11714","display_name":"Multimodal Machine Learning Applications","score":0.019700000062584877,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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":0.015799999237060547,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/incomplete-knowledge","display_name":"incomplete knowledge","score":0.8510000109672546},{"id":"https://openalex.org/keywords/benchmarking","display_name":"benchmarking","score":0.7440000176429749},{"id":"https://openalex.org/keywords/knowledge-graph-reasoning","display_name":"knowledge graph reasoning","score":0.40299999713897705},{"id":"https://openalex.org/keywords/large-language-models","display_name":"large language models","score":0.5400000214576721}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.625},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.503000020980835},{"id":"https://openalex.org/C86251818","wikidata":"https://www.wikidata.org/wiki/Q816754","display_name":"Benchmarking","level":2,"score":0.5027999877929688},{"id":"https://openalex.org/C161301231","wikidata":"https://www.wikidata.org/wiki/Q3478658","display_name":"Knowledge representation and reasoning","level":2,"score":0.43209999799728394},{"id":"https://openalex.org/C2987255567","wikidata":"https://www.wikidata.org/wiki/Q33002955","display_name":"Knowledge graph","level":2,"score":0.42879998683929443},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.388700008392334},{"id":"https://openalex.org/C120936955","wikidata":"https://www.wikidata.org/wiki/Q2155640","display_name":"Empirical research","level":2,"score":0.3619999885559082},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.34860000014305115},{"id":"https://openalex.org/C115925183","wikidata":"https://www.wikidata.org/wiki/Q1412694","display_name":"Knowledge-based systems","level":2,"score":0.3294999897480011},{"id":"https://openalex.org/C56739046","wikidata":"https://www.wikidata.org/wiki/Q192060","display_name":"Knowledge management","level":1,"score":0.310699999332428},{"id":"https://openalex.org/C4554734","wikidata":"https://www.wikidata.org/wiki/Q593744","display_name":"Knowledge base","level":2,"score":0.30320000648498535},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.2858999967575073},{"id":"https://openalex.org/C120567893","wikidata":"https://www.wikidata.org/wiki/Q1582085","display_name":"Knowledge extraction","level":2,"score":0.2818000018596649},{"id":"https://openalex.org/C166052673","wikidata":"https://www.wikidata.org/wiki/Q83021","display_name":"Empirical evidence","level":2,"score":0.27970001101493835},{"id":"https://openalex.org/C2777220311","wikidata":"https://www.wikidata.org/wiki/Q6423340","display_name":"Knowledge acquisition","level":2,"score":0.273499995470047},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.2734000086784363},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.2542000114917755}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.18653/v1/2026.eacl-long.114","doi":"https://doi.org/10.18653/v1/2026.eacl-long.114","is_oa":true,"landing_page_url":"https://doi.org/10.18653/v1/2026.eacl-long.114","pdf_url":"https://aclanthology.org/2026.eacl-long.114.pdf","source":{"id":"https://openalex.org/S4306418011","display_name":"Conference of the European Chapter of the Association for Computational Linguistics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)","raw_type":"proceedings-article"},{"id":"pmh:oai:eprints.soton.ac.uk:511657","doi":null,"is_oa":true,"landing_page_url":"http://doi.org/10.18653/v1/2026.eacl-long.114>).","pdf_url":"https://eprints.soton.ac.uk/511657/1/2026.eacl-long.114.pdf","source":{"id":"https://openalex.org/S4306401019","display_name":"ePrints Soton (University of Southampton)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I43439940","host_organization_name":"University of Southampton","host_organization_lineage":["https://openalex.org/I43439940"],"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":"Conference or Workshop Item"}],"best_oa_location":{"id":"doi:10.18653/v1/2026.eacl-long.114","doi":"https://doi.org/10.18653/v1/2026.eacl-long.114","is_oa":true,"landing_page_url":"https://doi.org/10.18653/v1/2026.eacl-long.114","pdf_url":"https://aclanthology.org/2026.eacl-long.114.pdf","source":{"id":"https://openalex.org/S4306418011","display_name":"Conference of the European Chapter of the Association for Computational Linguistics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)","raw_type":"proceedings-article"},"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G4853353633","display_name":"OntoEm: Semantic Embedding for Ontologies","funder_award_id":"EP/Y017706/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320317967","display_name":"International Max Planck Research School for Environmental, Cellular and Molecular Microbiology","ror":null},{"id":"https://openalex.org/F4320327553","display_name":"International Max Planck Research School for Advanced Methods in Process and Systems Engineering","ror":"https://ror.org/04hazks31"},{"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/W7140148804.pdf","grobid_xml":"https://content.openalex.org/works/W7140148804.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4416037213","https://openalex.org/W7213873374","https://openalex.org/W7135389690","https://openalex.org/W7116054312","https://openalex.org/W7202385952","https://openalex.org/W7166814665","https://openalex.org/W7220656006","https://openalex.org/W7166526190","https://openalex.org/W6982098119","https://openalex.org/W7152661718"],"abstract_inverted_index":{"Dongzhuoran":[0],"Zhou,":[1,7],"Yuqicheng":[2],"Zhu,":[3],"Xiaxia":[4],"Wang,":[5],"Hongkuan":[6],"Yuan":[8],"He,":[9],"Jiaoyan":[10],"Chen,":[11],"Steffen":[12],"Staab,":[13],"Evgeny":[14],"Kharlamov.":[15],"Proceedings":[16],"of":[17,21,25],"the":[18,22,26],"19th":[19],"Conference":[20],"European":[23],"Chapter":[24],"Association":[27],"for":[28],"Computational":[29],"Linguistics":[30],"(Volume":[31],"1:":[32],"Long":[33],"Papers).":[34],"2026.":[35]},"counts_by_year":[],"updated_date":"2026-10-27T15:51:10.671819","created_date":"2026-03-15T00:00:00"}