Ea Early ri y risk sk pred ediction iction on th the e - - PowerPoint PPT Presentation

David E. Losada Fabio Crestani Javier Parapar

Ea Early ri y risk sk pred ediction iction on th the e Internet ternet

CLEF 2020 labs

explore issues of evaluation methodology, effectiveness metrics and other processes related to the creation of test collections for early risk detection

early risk prediction:

process of seq

equential uential evid idence ence ac accu cumula ulation ion

where al

aler erts ts are made when there is enough evidence

about a certain type of ri

risk

eR eRisk isk 20 2020: 20: 2 t 2 tas asks

T1 T1

early dete tection tion of self-ha harm rm

(continuation of 2019's self-harm task) training aining data ta (2019's data)

positiv tive e group

• up:

: (done self-harm)

history of his/her writings before entering into the self-harm community server-based release of data (REST service)

T2 T2

depres ession ion-level el es esti timation tion (c (contin ntinua uation tion of 20 2019 19's T3) 3) automatically fill a standard depression questionnaire

based on user's posts/comments on Social Media

T2 T2