Actas de congresos
A computational tool for automated language production analysis aimed at dementia diagnosis
Fecha
2016-07Registro en:
International Conference on Computational Processing of the Portuguese Language, XII; Demonstration Session, 2016, Tomar.
Autor
Aluisio, Sandra Maria
Cunha, Andre
Toledo, Cíntia
Scarton, Carolina
Institución
Resumen
Coh-Metrix-Dementia is a unified computational environment that allows for the automated analysis of language production in clinical (and similar) settings. In its current version, the tool is composed of an underlying Python library – built on top of several Natural Language Processing (NLP) tools for the Portuguese language – that can be used as a component inside other applications, and a web interface, suitable for use by health professionals. From a transcribed or written text sample produced by a subject, Coh-Metrix-Dementia can extract 73 textual metrics, comprising several levels of linguistic analysis from word counts to semantics and discourse, which can be used in language evaluation. The tool has been evaluated in automated classification tasks involving dementia patients, where it demonstrated to have a high classification accuracy, and is freely available under the GPLv3 license.