No abstract

Purpose: In recent years, online reviews have become increasingly important in promoting various products and services. Unfortunately, writing deceptive reviews has also become a common practice to promote one’s own business or tarnish the reputation of competitors. As a result, identifying fake reviews has become an intense and ongoing area of research. This paper proposes a node embedding approach to detect online fake reviews. The approach involves extracting features from the input data to create a distance matrix, which is then used to construct a Graph. From the graph, we extract graph nodes and use the Node2Vec biased random walk algorithm to create a model. We retrieve node embeddings from the Node2Vec model using Word2Vec and use different classifiers to classify the nodes. We trained and evaluated the machine learning models on the Deceptive Opinion Spam Corpus and YelpChi datasets, and achieved superior results compared to prior work for detecting fake reviews, with SVM using the ham-ming distance achieving 98.44% accuracy, 98.44% precision, 98.44% recall, and 98.44% F1-score. Furthermore, we explored different methods for explaining our proposed methods using explainable AI, demonstrating the interpretability of our approach. Our proposed node embedding approach shows promising results for 1 detecting fake reviews and offers a transparent and interpretable solution for the problem.

Quality control and assurance plays a fundamental role within higher education contexts. One means by which quality control can be performed is by mapping the course learning outcomes (CLOs) to the program learning outcomes (PLO). This paper describes a system by which this mapping process can be automated and validated. The proposed AI-based system automates the mapping process through the use of natural language processing. The framework underwent testing using two actual datasets from two educational programs, and the findings were promising. A testament to the potential of the suggested framework was the precision of the mapping detected (83.1% and 88.1% for the two programs, respectively) compared to the mapping performed by the domain experts. A web-based tool was created to help teachers and administrators execute automatic mappings (https://bidac-uaeu.github.io/mapper.html). The data and software used in this research project can be found at the following URL: https://github.com/-nzaki02/CLO-PLO

Quality control and assurance plays a fundamental role within higher education contexts. One means by which quality control can be performed is by mapping the course learning outcomes (CLOs) to the program learning outcomes (PLO). This paper describes a system by which this mapping process can be automated and validated. The proposed AI-based system automates the mapping process through the use of natural language processing. The framework underwent testing using two actual datasets from two educational programs, and the findings were promising. A testament to the potential of the suggested framework was the precision of the mapping detected (83.1% and 88.1% for the two programs, respectively) compared to the mapping performed by the domain experts. A web-based tool was created to help teachers and administrators execute automatic mappings (https://bidac-uaeu.github.io/mapper.-html). The data and software used in this research project can be found at the following URL: https://github.com/-nzaki02/CLO-PLO