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Predicting automobile insurance fraud using classical and machine learning models Shareh Nordin, Shareh-Zulhelmi; Wah, Yap Bee; Haur, Ng Kok; Hashim, Asmawi; Rambeli, Norimah; Jalil, Norasibah Abdul
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 1: February 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i1.pp911-921

Abstract

Insurance fraud claims have become a major problem in the insurance industry. Several investigations have been carried out to eliminate negative impacts on the insurance industry as this immoral act has caused the loss of billions of dollars. In this paper, a comparative study was carried out to assess the performance of various classification models, namely logistic regression, neural network (NN), support vector machine (SVM), tree augmented naïve Bayes (NB), decision tree (DT), random forest (RF) and AdaBoost with different model settings for predicting automobile insurance fraud claims. Results reveal that the tree augmented NB outperformed other models based on several performance metrics with accuracy (79.35%), sensitivity (44.70%), misclassification rate (20.65%), area under curve (0.81) and Gini (0.62). In addition, the result shows that the AdaBoost algorithm can improve the classification performance of the decision tree. These findings are useful for insurance professionals to identify potential insurance fraud claim cases.
Examining the trends of research on educators’ readiness in online teaching & learning (2013-2022): a bibliometric analysis Mohd Nasir, Farah Damia; Ghazali, Norliza; Wah, Yap Bee
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i6.27113

Abstract

Despite recent emphasis, the usage of online and blended learning as instructional methodologies in higher education is still unequal, leading to variations in students’ learning experiences across structures, areas, and programs. Research on the aspects concerning educators’ adoption and adaptation of online teaching is crucial to overcome this limitation. By using the terms ‘Educators AND Online Learning AND Readiness’, 391 journal articles were listed for further analysis. Microsoft Excel was used for frequency analysis, VOSviewer to visualize data, Harzing’s Publish or Perish to compute and evaluate citation metrics, and Words Cloud to create a cluster of words that were shown in various sizes. The bibliometric criteria used in this study to summarize results includes language, topic area, research trends by year of publication, top contributors by nation, most significant institution, and name of the active source and others. This research includes a citation analysis, an authorship analysis, and keyword analysis. The results show that from 2013 to 2022, the rate of publication increased, and a spike was seen from 2019 to 2020 due to the COVID-19 epidemic. Identification of the important blended learning outcome predictors will help with the initial planning of this creative pedagogical strategy.