Fuzzy-based machine learning for predicting narcissistic traits among Twitter users.
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Date
2022
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Abstract
Social media has provided a platform for people to share views and opinions they identify with or
which are significant to them. Similarly, social media enables individuals to express themselves
authentically and divulge their personal experiences in a variety of ways. This behaviour, in turn,
reflects the user’s personality. Social media has in recent times been used to perpetuate various
forms of crimes, and a narcissistic personality trait has been linked to violent criminal
activities. This negative side effect of social media calls for multiple ways to respond and
prevent damage instigated. Eysenck's theory on personality and crime postulated that various forms
of crime are caused by a mixture of environmental and neurological causes. This theory suggests
certain people are more likely to commit a crime, and personality is the principal factor in
criminal behaviour. Twitter is a widely used social media platform for sharing news, opinions,
feelings, and emotions
by users.
Given that narcissists have an inflated self-view and engage in a variety of strategies aimed at
bringing attention to themselves, features unique to Twitter are more appealing to narcissists than
those on sites such as Facebook. This study adopted design science research methodology to develop
a fuzzy-based machine learning predictive model to identify traces of narcissism from Twitter using
data obtained from the activities of a user. Performance evaluation of various classifiers was
conducted and an optimal classifier with 95% accuracy was obtained. The research found that the
size of the dataset and input variables have an influence on classifier accuracy. In addition, the
research developed an updated process model and recommended a research model
for narcissism classification.
Description
Doctoral Degree. University of KwaZulu-Natal, Pietermaritzburg.