1. A Surveillance System for Preventing Suicide Attempts in Urban Metro Stations Theodoros Anagnostopoulos Department of Infocommunication Technologies, ITMO University, St. Petersburg, Russia thanag@di.uoa.gr The 18th Panhellenic Conference on Informatics PCI 2014

2. The Suicide Issue it is an open issue as a result will or if they suffer Focusing on the research results of psychologists and epistemologists it is an open issue whether people who commit suicide do so as a result of free will or if they suffer from chronic or occasional depression.

3. The Research hypothesis During the decision making process of a suicide a series of “bad” thoughts is reflected in their faces in the form of depressive expressions. Furthermore, their voice frequencies and their body movement gestures express their depressive emotional state.

4. Decision Process decision making process express the depressive emotional state During the decision making process of a potential suicide the facial features, the voice frequencies and the body movement gestures express the depressive emotional state of a specific individual.

5. Surveillance Systems metro stations public space which can capture In metro stations and other public space there are surveillance systems which can capture facial expressions, body movement and speech recognition of an individual.

6. Methodology Characteristics facial expressions and facial recognition movement gestures and gesture recognition speech and speech recognition

7. Methodology Interfaces Facial interface (the CCTV surveillance system). Gesture interface to capture the body movement and/or the indoor trajectory of the individual (the CCTV surveillance system). Speech interface to capture the voice frequencies (mobile phones, privacy?)

8. I Interfaces and emotional state All these interfaces collect information about a person in order to extract knowledge for his/her emotional state.

9. System Architecture information system architecture can predict in a critical It is proposed a design of an information system architecture which can predict whether an individual intends to commit a suicide in an urban metro station or not, in a critical period of time.

10. System Overview

11. Future research Future research is planned to be in the area of Internet of Things by means that the proposed system should be smart enough in order to be incorporated to other use cases of a smart city infrastructure.

12. Thank You Feel Free to Ask Questions… Feel Free to Ask Questions…