Alzheimer’s disease K-Nearest Neighbors assessment behavioural and psychological symptoms of dementia behavioural therapy bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences bilingualism biomarkers machine learning cognitive approach cognitive changes cognitive rehabilitation dementia diagnosis differential diagnosis electroencephalography electroencephalography (EEG) frontotemporal dementia graph theory graphical markers graphical parameters informativeness intervention language therapy level of functioning longitudinal assessment memory clinic mortality n/a natural history