Browsing by Author "Wickramasinghe, Y"

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Open Access
Crises, chaos and contemplations: the impact of economic downturn on academic performance: a study of undergraduate students in private universities in Colombo, Sri Lanka
(Taylor and Francis Ltd., 2025-04-02) Thennakoon, S. H; Wijesinghe, K.S; Weerarathna, R. S; Shamila, P; Wickramasinghe, Y
The impact of the economic downturn on academic performance is a matter of significant concern for the Sri Lankan undergraduates. This study examined the impact of the current economic recession on the academic achievements of undergraduate students enrolled in private universities in the Colombo district. A sample of 380 undergraduate students was selected from a population of around 40,000 using cluster sampling, and data were collected via online questionnaires. The study employed a quantitative research approach, with multiple linear regression analysis conducted using SPSS. Independent variables of this study are the economic status of students’ families, ability to fulfil academic needs, students’ expectations, and mental health, while academic performance is the dependent variable. The research findings highlight how mental health and the ability to fulfil academic needs make a considerable impact on academic performance. Therefore, expanding future studies is highly recommended to investigate the comprehensive picture of the impact on undergraduate students in Sri Lanka.
Open Access
A Review on Telecommunication Frauds and Fraud Detection Techniques
(Emerald Publishing, 2022-12-01) Wickramasinghe, Y; Rathnayake, P; Madumal, O; Ramzan, R; Galappaththi, K
Telecommunication fraud is a serious challenge which caused billions of dollars in losses for companies and led to much distress among users. The reported number of frauds has been gradually increasing over the past few years. Hence telecommunication companies tend to use new fraud detection techniques to address the sprawling fraudulent activities. Identification of frauds and application of effective fraud detection techniques are vital for the sustainability of the telecommunication industry. It will drive the industry towards a more credible and profitable direction in the future. This study provides the first systematic literature review on telecommunication frauds and fraud detection techniques. The Prisma method was applied to systematically review the past literature. Using multiple research databases, 1117 research articles were identified, which were screened based on their relevance. 62 articles that were relevant to the study were then analysed in-depth to investigate various types of telecommunication frauds and fraud detection techniques. Results show that the time number of publications is on the rise and citations appear to be saturated at a certain level. The findings emphasise the dire need to investigate fraud happening in developing countries and effective techniques to be implemented to curb fraud. Additionally, a lack of focus on people/qualitative aspects of fraud and detection techniques was identified. The significance of the study is twofold. Researchers could use this study as a steppingstone for future research in telecommunication fraud and fraud detection techniques. On the other hand, Telecommunication companies could refer to this study for understanding fraud and in determining suitable fraud detection method.