{"id":"https://openalex.org/W4412889972","doi":"https://doi.org/10.18653/v1/2025.acl-long.1253","title":"Delta-KNN: Improving Demonstration Selection in In-Context Learning for Alzheimer\u2019s Disease Detection","display_name":"Delta-KNN: Improving Demonstration Selection in In-Context Learning for Alzheimer\u2019s Disease Detection","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4412889972","doi":"https://doi.org/10.18653/v1/2025.acl-long.1253"},"language":"en","primary_location":{"id":"doi:10.18653/v1/2025.acl-long.1253","is_oa":true,"landing_page_url":"https://doi.org/10.18653/v1/2025.acl-long.1253","pdf_url":"https://aclanthology.org/2025.acl-long.1253.pdf","source":null,"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 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["arxiv","crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://aclanthology.org/2025.acl-long.1253.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5057379216","display_name":"Chuyuan Li","orcid":"https://orcid.org/0000-0001-6117-1274"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Chuyuan Li","raw_affiliation_strings":["Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada","institution_ids":["https://openalex.org/I141945490"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009823475","display_name":"Raymond Li","orcid":"https://orcid.org/0000-0002-7957-7798"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Raymond Li","raw_affiliation_strings":["Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada","institution_ids":["https://openalex.org/I141945490"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070359183","display_name":"Thalia S. Field","orcid":"https://orcid.org/0000-0002-1176-0633"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Thalia S. Field","raw_affiliation_strings":["Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada","institution_ids":["https://openalex.org/I141945490"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5049259877","display_name":"Giuseppe Carenini","orcid":"https://orcid.org/0000-0003-4310-0119"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Giuseppe Carenini","raw_affiliation_strings":["Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science  Vancouver Stroke Program and Division of Neurology , Faculty of Medicine The University of British Columbia V6T 1Z4 , Vancouver , BC , Canada","institution_ids":["https://openalex.org/I141945490"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I141945490"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.14705943,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"25807","last_page":"25826"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13702","display_name":"Machine Learning in Healthcare","score":0.9904999732971191,"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/T13702","display_name":"Machine Learning in Healthcare","score":0.9904999732971191,"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/T11396","display_name":"Artificial Intelligence in Healthcare","score":0.989799976348877,"subfield":{"id":"https://openalex.org/subfields/3605","display_name":"Health Information Management"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10862","display_name":"AI in cancer detection","score":0.9797000288963318,"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/context","display_name":"Context (archaeology)","score":0.6802124381065369},{"id":"https://openalex.org/keywords/selection","display_name":"Selection (genetic algorithm)","score":0.6476630568504333},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6379921436309814},{"id":"https://openalex.org/keywords/disease","display_name":"Disease","score":0.5473950505256653},{"id":"https://openalex.org/keywords/delta","display_name":"Delta","score":0.5186263918876648},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5074746012687683},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.4752894639968872},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.16702023148536682},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.14035120606422424},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.11787182092666626},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.06658217310905457}],"concepts":[{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6802124381065369},{"id":"https://openalex.org/C81917197","wikidata":"https://www.wikidata.org/wiki/Q628760","display_name":"Selection (genetic algorithm)","level":2,"score":0.6476630568504333},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6379921436309814},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.5473950505256653},{"id":"https://openalex.org/C5072461","wikidata":"https://www.wikidata.org/wiki/Q49506","display_name":"Delta","level":2,"score":0.5186263918876648},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5074746012687683},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.4752894639968872},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.16702023148536682},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.14035120606422424},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.11787182092666626},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.06658217310905457},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.18653/v1/2025.acl-long.1253","is_oa":true,"landing_page_url":"https://doi.org/10.18653/v1/2025.acl-long.1253","pdf_url":"https://aclanthology.org/2025.acl-long.1253.pdf","source":null,"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 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2506.03476","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2506.03476","pdf_url":"https://arxiv.org/pdf/2506.03476","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"}],"best_oa_location":{"id":"doi:10.18653/v1/2025.acl-long.1253","is_oa":true,"landing_page_url":"https://doi.org/10.18653/v1/2025.acl-long.1253","pdf_url":"https://aclanthology.org/2025.acl-long.1253.pdf","source":null,"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 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320331257","display_name":"Alliance de recherche num\u00e9rique du Canada","ror":"https://ror.org/010r6td27"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4412889972.pdf","grobid_xml":"https://content.openalex.org/works/W4412889972.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4221046490","https://openalex.org/W4297616267","https://openalex.org/W2502651140","https://openalex.org/W3195406774","https://openalex.org/W4297615481","https://openalex.org/W4297616317","https://openalex.org/W3111070561","https://openalex.org/W2414832939","https://openalex.org/W4239373651","https://openalex.org/W4297616379"],"abstract_inverted_index":{"Alzheimer's":[0],"Disease":[1],"(AD)":[2],"is":[3],"a":[4,51,84,95,109,118],"progressive":[5],"neurodegenerative":[6],"disorder":[7],"that":[8,57,89,112,131],"leads":[9],"to":[10,72,98],"dementia,":[11],"and":[12],"early":[13],"intervention":[14],"can":[15],"greatly":[16],"benefit":[17],"from":[18,39],"analyzing":[19],"linguistic":[20],"abnormalities.In":[21],"this":[22,77],"work,":[23],"we":[24,81],"explore":[25],"the":[26,73,100,140],"potential":[27],"of":[28,76,103],"Large":[29],"Language":[30],"Models":[31],"(LLMs)":[32],"as":[33,62],"health":[34],"assistants":[35],"for":[36,67,117],"AD":[37,68,123],"diagnosis":[38],"patient-generated":[40],"text":[41],"using":[42,139],"in-context":[43],"learning":[44],"(ICL),":[45],"where":[46],"tasks":[47],"are":[48],"defined":[49],"through":[50],"few":[52],"input-output":[53],"examples.Empirical":[54],"results":[55],"reveal":[56],"conventional":[58],"ICL":[59,91,136],"methods,":[60],"such":[61],"similarity-based":[63],"selection,":[64],"perform":[65],"poorly":[66],"diagnosis,":[69],"likely":[70],"due":[71],"inherent":[74],"complexity":[75],"task.To":[78],"address":[79],"this,":[80],"introduce":[82],"Delta-KNN,":[83],"novel":[85],"demonstration":[86],"selection":[87],"strategy":[88],"enhances":[90],"performance.Our":[92],"method":[93],"leverages":[94],"delta":[96],"score":[97],"assess":[99],"relative":[101],"gains":[102],"each":[104],"training":[105],"example,":[106],"coupled":[107],"with":[108],"KNN-based":[110],"retriever":[111],"dynamically":[113],"selects":[114],"optimal":[115],"\"representatives\"":[116],"given":[119],"input.Experiments":[120],"on":[121],"two":[122],"detection":[124],"datasets":[125],"across":[126],"three":[127],"opensource":[128],"LLMs":[129],"demonstrate":[130],"Delta-KNN":[132],"consistently":[133],"outperforms":[134],"existing":[135],"baselines.Notably,":[137],"when":[138],"Llama-3.1":[141],"model,":[142],"our":[143],"approach":[144],"achieves":[145],"new":[146],"state-of-the-art":[147],"results,":[148],"surpassing":[149],"even":[150],"supervised":[151],"classifiers.":[152],"1":[153]},"counts_by_year":[],"updated_date":"2026-08-05T07:39:15.569665","created_date":"2025-10-10T00:00:00"}
