Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/188777 |
Resumo: | The present study analyzes the feasibility of text classification to predict individual suicidal behavior. Entries from Virginia Woolf’s diaries and letters were used to assess whether a text classification algorithm could identify written patterns associated with suicide. Methods This is a text classification study. We compared 46 text entries from the two months before Virginia Woolf’s suicide with 54 texts randomly selected from Virginia Woolf’s work during other periods of her life. Letters and diaries were included, while books, novels, short stories, and article fragments were excluded. The data was analyzed using a Naïve-Bayes machine-learning algorithm. Results The model showed a balanced accuracy of 80.45%, sensitivity of 69%, and specificity of 91%. The Kappa statistic was 0.6, which means a good agreement, and the p-value of the model was 0.003. The area under the ROC curve (AUC) was 0.80. In other words, the model exhibited good performance when used for classifying Virginia Woolf’s diaries and letters. Discussion The present study showed the feasibility of a machine-learning model coupled with text to identify individual written patterns associated with suicidal behavior. Our text signature was able to identify the period of two months preceding suicide with a high accuracy. This technique may be applied to subjects with psychiatric disorders by means of data captured from social media, e-mail, among others. The algorithm may then predict a specific outcome and enable early intervention by clinicians. |
id |
UFRGS-2_d67b231752903aec09d37c198540a9e2 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/188777 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Berni, Gabriela de ÁvilaPonte, Francisco Diego Rabelo daGarcia, Diego LibrenzaBoeira, Manuela ViannaKauer-Sant'Anna, MárciaPassos, Ives CavalcanteKapczinski, Flávio Pereira2019-02-14T02:32:48Z20181932-6203http://hdl.handle.net/10183/188777001087811The present study analyzes the feasibility of text classification to predict individual suicidal behavior. Entries from Virginia Woolf’s diaries and letters were used to assess whether a text classification algorithm could identify written patterns associated with suicide. Methods This is a text classification study. We compared 46 text entries from the two months before Virginia Woolf’s suicide with 54 texts randomly selected from Virginia Woolf’s work during other periods of her life. Letters and diaries were included, while books, novels, short stories, and article fragments were excluded. The data was analyzed using a Naïve-Bayes machine-learning algorithm. Results The model showed a balanced accuracy of 80.45%, sensitivity of 69%, and specificity of 91%. The Kappa statistic was 0.6, which means a good agreement, and the p-value of the model was 0.003. The area under the ROC curve (AUC) was 0.80. In other words, the model exhibited good performance when used for classifying Virginia Woolf’s diaries and letters. Discussion The present study showed the feasibility of a machine-learning model coupled with text to identify individual written patterns associated with suicidal behavior. Our text signature was able to identify the period of two months preceding suicide with a high accuracy. This technique may be applied to subjects with psychiatric disorders by means of data captured from social media, e-mail, among others. The algorithm may then predict a specific outcome and enable early intervention by clinicians.application/pdfengPLoS ONE. San Francisco. Vol. 13, no. 10 (Oct. 2018), e0204820, 11 f.SuicídioDepressãoAlgoritmosAprendizado de máquinaPotential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writingsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001087811.pdf.txt001087811.pdf.txtExtracted Texttext/plain34561http://www.lume.ufrgs.br/bitstream/10183/188777/3/001087811.pdf.txtb9bdd81a3c081ed650b0773a8555ede7MD53001087811-02.pdf.txt001087811-02.pdf.txtExtracted Texttext/plain1982http://www.lume.ufrgs.br/bitstream/10183/188777/4/001087811-02.pdf.txta2b7199af28182a9ab3f636631f56e0dMD54ORIGINAL001087811.pdfTexto completo (inglês)application/pdf1148293http://www.lume.ufrgs.br/bitstream/10183/188777/1/001087811.pdf6d2b3c78127494b36d52515eec38b528MD51001087811-02.pdfErrataapplication/pdf180472http://www.lume.ufrgs.br/bitstream/10183/188777/2/001087811-02.pdfb9152a5b61cbd726e25064c75b0edc27MD5210183/1887772023-06-23 03:30:54.695405oai:www.lume.ufrgs.br:10183/188777Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-23T06:30:54Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
title |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
spellingShingle |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings Berni, Gabriela de Ávila Suicídio Depressão Algoritmos Aprendizado de máquina |
title_short |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
title_full |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
title_fullStr |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
title_full_unstemmed |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
title_sort |
Potential use of text classification tools as signatures of suicidal behavior : a proof-of-concept study using Virginia Woolf’s personal writings |
author |
Berni, Gabriela de Ávila |
author_facet |
Berni, Gabriela de Ávila Ponte, Francisco Diego Rabelo da Garcia, Diego Librenza Boeira, Manuela Vianna Kauer-Sant'Anna, Márcia Passos, Ives Cavalcante Kapczinski, Flávio Pereira |
author_role |
author |
author2 |
Ponte, Francisco Diego Rabelo da Garcia, Diego Librenza Boeira, Manuela Vianna Kauer-Sant'Anna, Márcia Passos, Ives Cavalcante Kapczinski, Flávio Pereira |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Berni, Gabriela de Ávila Ponte, Francisco Diego Rabelo da Garcia, Diego Librenza Boeira, Manuela Vianna Kauer-Sant'Anna, Márcia Passos, Ives Cavalcante Kapczinski, Flávio Pereira |
dc.subject.por.fl_str_mv |
Suicídio Depressão Algoritmos Aprendizado de máquina |
topic |
Suicídio Depressão Algoritmos Aprendizado de máquina |
description |
The present study analyzes the feasibility of text classification to predict individual suicidal behavior. Entries from Virginia Woolf’s diaries and letters were used to assess whether a text classification algorithm could identify written patterns associated with suicide. Methods This is a text classification study. We compared 46 text entries from the two months before Virginia Woolf’s suicide with 54 texts randomly selected from Virginia Woolf’s work during other periods of her life. Letters and diaries were included, while books, novels, short stories, and article fragments were excluded. The data was analyzed using a Naïve-Bayes machine-learning algorithm. Results The model showed a balanced accuracy of 80.45%, sensitivity of 69%, and specificity of 91%. The Kappa statistic was 0.6, which means a good agreement, and the p-value of the model was 0.003. The area under the ROC curve (AUC) was 0.80. In other words, the model exhibited good performance when used for classifying Virginia Woolf’s diaries and letters. Discussion The present study showed the feasibility of a machine-learning model coupled with text to identify individual written patterns associated with suicidal behavior. Our text signature was able to identify the period of two months preceding suicide with a high accuracy. This technique may be applied to subjects with psychiatric disorders by means of data captured from social media, e-mail, among others. The algorithm may then predict a specific outcome and enable early intervention by clinicians. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2019-02-14T02:32:48Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/188777 |
dc.identifier.issn.pt_BR.fl_str_mv |
1932-6203 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001087811 |
identifier_str_mv |
1932-6203 001087811 |
url |
http://hdl.handle.net/10183/188777 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
PLoS ONE. San Francisco. Vol. 13, no. 10 (Oct. 2018), e0204820, 11 f. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/188777/3/001087811.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/188777/4/001087811-02.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/188777/1/001087811.pdf http://www.lume.ufrgs.br/bitstream/10183/188777/2/001087811-02.pdf |
bitstream.checksum.fl_str_mv |
b9bdd81a3c081ed650b0773a8555ede7 a2b7199af28182a9ab3f636631f56e0d 6d2b3c78127494b36d52515eec38b528 b9152a5b61cbd726e25064c75b0edc27 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224962686582784 |