Perceiving university students' opinions from Google app reviews

Abstract

Google app market captures the school of thought of users from every corner of the globe via ratings and text reviews, in a multilinguistic arena. The critique's viewpoint regarding an app is proportional to their satisfaction level. The potential information from the reviews cannot be extracted manually, due to its exponential growth.So, sentiment analysis, by machine learning and deep learning algorithms employing NLP, explicitly uncovers and interprets the emotions. This study performs the sentiment classification of the app reviews and identifies the university students' behavior toward the app market via exploratory analysis. We applied machine learning algorithms using the TP, TF, and TF-IDF text representation scheme and evaluated its performance on Bagging, an ensemble learning method. We used word embedding, GloVe, on the deep learning paradigms. Our model was trained on Google app reviews and tested on students' app reviews (SAR). The various combinations of these algorithms were compared among each other using F-score and accuracy and inferences were highlighted graphically. SVM, among other classifiers, gave fruitful accuracy (93.41%), F-score (0.89) on bi-gram + TF-IDF scheme. Bagging enhanced the performance of LR and NB with accuracy 87.88% and 86.69% and F-score 0.86 and 0.78 respectively. Overall, LSTM on Glove embedding recorded the highest accuracy (95.2%) and F-score (0.88).

K-Fold Cross-Validation through Identification of the Opinion Classification Algorithm for the Satisfaction of University Students

“…This supports what has been demonstrated in this research because it is necessary to apply cross-validation techniques to achieve greater precision with respect to the performance metrics of the algorithm. Giving further support to the results obtained in this research, Kurnia [72] used K-fold cross-validation to identify the classification algorithm with the best performance and determined that the SVM K-Fold Cross-Validation through Identification of the Opinion Classification Algorithm for the Satisfaction of University Students algorithm reached an accuracy of 78.99%, evidencing that the classification matrices performance varied in relation to the training and testing data sets.…”