{"id":"https://openalex.org/W2935868772","doi":"https://doi.org/10.1109/icassp.2019.8682423","title":"Computational Cognitive Assessment: Investigating the Use of an Intelligent Virtual Agent for the Detection of Early Signs of Dementia","display_name":"Computational Cognitive Assessment: Investigating the Use of an Intelligent Virtual Agent for the Detection of Early Signs of Dementia","publication_year":2019,"publication_date":"2019-04-17","ids":{"openalex":"https://openalex.org/W2935868772","doi":"https://doi.org/10.1109/icassp.2019.8682423","mag":"2935868772"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2019.8682423","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2019.8682423","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","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/A5047085856","display_name":"Bahman Mirheidari","orcid":"https://orcid.org/0000-0002-7797-2778"},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Bahman Mirheidari","raw_affiliation_strings":["Department of Computer Science, University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I91136226"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060110410","display_name":"D. Blackburn","orcid":"https://orcid.org/0000-0001-8886-1283"},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Daniel Blackburn","raw_affiliation_strings":["Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I91136226"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000166776","display_name":"Ronan OrMalley","orcid":null},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ronan OrMalley","raw_affiliation_strings":["Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I91136226"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021789996","display_name":"Traci Walker","orcid":"https://orcid.org/0000-0002-2583-7232"},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Traci Walker","raw_affiliation_strings":["Department of Human Communication Sciences, University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Department of Human Communication Sciences, University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I91136226"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089820600","display_name":"Annalena Venneri","orcid":"https://orcid.org/0000-0002-9488-2301"},"institutions":[{"id":"https://openalex.org/I2801732343","display_name":"Royal Hallamshire Hospital","ror":"https://ror.org/00514rc81","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I2801732343","https://openalex.org/I4210102902"]},{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Annalena Venneri","raw_affiliation_strings":["Department of Neuroscience, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Department of Neuroscience, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I2801732343","https://openalex.org/I91136226"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011622439","display_name":"Markus Reuber","orcid":"https://orcid.org/0000-0002-4104-6705"},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]},{"id":"https://openalex.org/I2801732343","display_name":"Royal Hallamshire Hospital","ror":"https://ror.org/00514rc81","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I2801732343","https://openalex.org/I4210102902"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Markus Reuber","raw_affiliation_strings":["Academic Neurology Unit, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Academic Neurology Unit, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I2801732343","https://openalex.org/I91136226"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5045619924","display_name":"Heidi Christensen","orcid":"https://orcid.org/0000-0003-3028-5062"},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Heidi Christensen","raw_affiliation_strings":["Centre for Assistive Technology and Connected Healthcare (CATCH), University of Sheffield, Sheffield, UK"],"affiliations":[{"raw_affiliation_string":"Centre for Assistive Technology and Connected Healthcare (CATCH), University of Sheffield, Sheffield, UK","institution_ids":["https://openalex.org/I91136226"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5047085856"],"corresponding_institution_ids":["https://openalex.org/I91136226"],"apc_list":null,"apc_paid":null,"fwci":2.8003,"has_fulltext":false,"cited_by_count":34,"citation_normalized_percentile":{"value":0.92594519,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"2732","last_page":"2736"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13702","display_name":"Machine Learning in Healthcare","score":0.9937999844551086,"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":0.9937999844551086,"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/T10028","display_name":"Topic Modeling","score":0.9901000261306763,"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/T10009","display_name":"Dementia and Cognitive Impairment Research","score":0.9624000191688538,"subfield":{"id":"https://openalex.org/subfields/2738","display_name":"Psychiatry and Mental health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/dementia","display_name":"Dementia","score":0.8195153474807739},{"id":"https://openalex.org/keywords/verbal-fluency-test","display_name":"Verbal fluency test","score":0.6769916415214539},{"id":"https://openalex.org/keywords/cognition","display_name":"Cognition","score":0.5812429785728455},{"id":"https://openalex.org/keywords/cognitive-decline","display_name":"Cognitive decline","score":0.5748250484466553},{"id":"https://openalex.org/keywords/conversation","display_name":"Conversation","score":0.5354061126708984},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4929683208465576},{"id":"https://openalex.org/keywords/cognitive-impairment","display_name":"Cognitive impairment","score":0.4684222936630249},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.46737971901893616},{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.4147435128688812},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.41027510166168213},{"id":"https://openalex.org/keywords/cognitive-psychology","display_name":"Cognitive psychology","score":0.3708192706108093},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.36788660287857056},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.3552657663822174},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3338053822517395},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.3097260594367981},{"id":"https://openalex.org/keywords/disease","display_name":"Disease","score":0.24241241812705994},{"id":"https://openalex.org/keywords/psychiatry","display_name":"Psychiatry","score":0.20524457097053528},{"id":"https://openalex.org/keywords/neuropsychology","display_name":"Neuropsychology","score":0.19092413783073425},{"id":"https://openalex.org/keywords/pathology","display_name":"Pathology","score":0.09629717469215393}],"concepts":[{"id":"https://openalex.org/C2779483572","wikidata":"https://www.wikidata.org/wiki/Q83030","display_name":"Dementia","level":3,"score":0.8195153474807739},{"id":"https://openalex.org/C97530452","wikidata":"https://www.wikidata.org/wiki/Q7920939","display_name":"Verbal fluency test","level":4,"score":0.6769916415214539},{"id":"https://openalex.org/C169900460","wikidata":"https://www.wikidata.org/wiki/Q2200417","display_name":"Cognition","level":2,"score":0.5812429785728455},{"id":"https://openalex.org/C2984863031","wikidata":"https://www.wikidata.org/wiki/Q83030","display_name":"Cognitive decline","level":4,"score":0.5748250484466553},{"id":"https://openalex.org/C2777200299","wikidata":"https://www.wikidata.org/wiki/Q52943","display_name":"Conversation","level":2,"score":0.5354061126708984},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4929683208465576},{"id":"https://openalex.org/C2984915365","wikidata":"https://www.wikidata.org/wiki/Q5141203","display_name":"Cognitive impairment","level":3,"score":0.4684222936630249},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.46737971901893616},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.4147435128688812},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.41027510166168213},{"id":"https://openalex.org/C180747234","wikidata":"https://www.wikidata.org/wiki/Q23373","display_name":"Cognitive psychology","level":1,"score":0.3708192706108093},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.36788660287857056},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.3552657663822174},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3338053822517395},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.3097260594367981},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.24241241812705994},{"id":"https://openalex.org/C118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","level":1,"score":0.20524457097053528},{"id":"https://openalex.org/C14216870","wikidata":"https://www.wikidata.org/wiki/Q3872","display_name":"Neuropsychology","level":3,"score":0.19092413783073425},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.09629717469215393},{"id":"https://openalex.org/C46312422","wikidata":"https://www.wikidata.org/wiki/Q11024","display_name":"Communication","level":1,"score":0.0},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2019.8682423","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2019.8682423","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","score":0.6700000166893005,"display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1524333225","https://openalex.org/W1554988677","https://openalex.org/W1674981298","https://openalex.org/W1843991114","https://openalex.org/W2021461139","https://openalex.org/W2021833992","https://openalex.org/W2032369682","https://openalex.org/W2043581199","https://openalex.org/W2073167788","https://openalex.org/W2086808018","https://openalex.org/W2101234009","https://openalex.org/W2121812409","https://openalex.org/W2296748067","https://openalex.org/W2337507445","https://openalex.org/W2398781542","https://openalex.org/W2518348742","https://openalex.org/W2560073268","https://openalex.org/W2569029926","https://openalex.org/W2606308239","https://openalex.org/W2619141335","https://openalex.org/W2746429841","https://openalex.org/W2755232679","https://openalex.org/W2780696045","https://openalex.org/W2889320648","https://openalex.org/W6631362777","https://openalex.org/W6637253536","https://openalex.org/W6658735024","https://openalex.org/W6675354045","https://openalex.org/W6697262600","https://openalex.org/W6703606238","https://openalex.org/W6738434659"],"related_works":["https://openalex.org/W1968552888","https://openalex.org/W2374116601","https://openalex.org/W3093134843","https://openalex.org/W2378167147","https://openalex.org/W3210777354","https://openalex.org/W2281307425","https://openalex.org/W1511346092","https://openalex.org/W2464405057","https://openalex.org/W1527532029","https://openalex.org/W2135825444"],"abstract_inverted_index":{"The":[0],"ageing":[1],"population":[2],"has":[3],"caused":[4],"a":[5,44,55,69,74],"marked":[6],"increased":[7],"in":[8],"the":[9,35,84,108,120,143],"number":[10,85],"of":[11,34,86],"people":[12,67,98],"with":[13,17,68,99],"cognitive":[14,101,117],"decline":[15],"linked":[16],"dementia.":[18],"Thus,":[19],"current":[20],"diagnostic":[21,87],"services":[22],"are":[23],"overstretched,":[24],"and":[25,73],"there":[26],"is":[27],"an":[28,49,129],"urgent":[29],"need":[30],"for":[31,113],"automating":[32],"parts":[33],"assessment":[36],"process.":[37],"In":[38,79],"previous":[39],"work,":[40],"we":[41,82],"demonstrated":[42],"how":[43],"stratification":[45],"tool":[46],"built":[47],"around":[48],"Intelligent":[50],"Virtual":[51],"Agent":[52],"(IVA)":[53],"eliciting":[54],"conversation":[56],"by":[57,140],"asking":[58],"memory-probing":[59],"questions,":[60],"was":[61],"able":[62],"to":[63,89,138],"accurately":[64],"distinguish":[65],"between":[66],"neuro-degenerative":[70],"disorder":[71,77],"(ND)":[72],"functional":[75],"memory":[76],"(FMD).":[78],"this":[80],"paper,":[81],"extend":[83],"classes":[88],"include":[90],"healthy":[91],"elderly":[92],"controls":[93],"(HCs)":[94],"as":[95,97],"well":[96],"mild":[100],"impairment":[102],"(MCI).":[103],"We":[104],"also":[105],"investigate":[106],"whether":[107],"IVA":[109],"may":[110],"be":[111],"used":[112],"administering":[114],"more":[115],"standard":[116],"tests,":[118],"like":[119],"verbal":[121],"fluency":[122],"tests.":[123],"A":[124],"four-way":[125],"classifier":[126],"trained":[127],"on":[128],"extended":[130],"feature":[131],"set":[132],"achieved":[133],"48%":[134],"accuracy,":[135],"which":[136],"improved":[137],"62%":[139],"using":[141],"just":[142],"22":[144],"most":[145],"significant":[146],"features":[147],"(ROC-AUC:":[148],"82%).":[149]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":11}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
