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BioInfo@UAVR at eRisk 2019: delving into Social Media Texts for the Early Detection of Mental and Food Disorders

This paper describes the participation of the Bioinformatics group of the Institute of Electronics and Engineering Informatics of University of Aveiro in the shared tasks of CLEF eRisk 2019. The objective of the eRisk initiative is to encourage research in the area of information retrieval for the automatic detection of risk situations on the internet. The challenge was organized in three tasks, focused on the early detection of anorexia (T1), self-harm (T2) and severity of depression (T3). We addressed these tasks using a mix approach that combines machine learning with psycholinguistics and behavioural patterns. The results obtained validate the use of such patterns in the context of social media mining and motivate future research into this field.