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Early detection of depression is important to improve human well-being. This paper proposes a new method to detect depression through time-frequency analysis of Internet behaviors. We recruited 728 postgraduate students and obtained their scores on a depression questionnaire (Zung Self-rating Depression Scale, SDS) and digital records of Internet behaviors. By time-frequency analysis, we built classification...
The traditional approach to detect mental state mainly depends on questionnaires completed by the subjects. The accuracy of answer is affected by many factors including subject's knowledge, the ability of memory, and the authenticity of answer. In order to improve the accuracy, we propose to utilize web behaviors to identify mental state instead of questionnaires. Currently, the web plays a key role...
Nowadays, people are suffering from various psychological problems such as insomnia, melancholia, anxiety, oppression, etc., but the current psychological counseling service system can not meet the increasing requirement. In this paper, we propose a new online psychological counseling framework, Psycare, which comes up with several significant features: (l)Automatic self-help in mind to customers...
This exploratory research specifically focusing on the relationship between Internet usage behaviors and five-factor personality traits made an effort to clarify that whether it was possible to locate certain personality trait only by behavior sample of the Internet. 571 master students were administrated with NEO-FFI-R and self-designed IUBCL. According to logistic regression analysis, relevant conclusions...
Network coordinate (NC) system is an efficient mechanism to predict Internet distance (latency) with limited times of measurement. In this paper, we focus on the node churn problem in distributed NC systems. Our study on Vivaldi, a representative distributed NC system, shows that under high node churn rate the prediction accuracy of the system will be seriously impaired, which renders the system unusable...
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