The eigenvalues and the corresponding scree plot are also displayed. The cumulative variance provides an indication of the relevance of the calculated topics. The higher the latter, the better the approximation resulting from the «truncated» SVD. However, some topics have a stronger association with the documents than others. What is semantic vs sentiment analysis? Semantic analysis is ….  Read More

Finally, no significant difference in feedback satisfaction was found between the experimental and control groups. This is in contrast to the results of a previous study that used chatbot in education [18], which reported that the chatbot improved learners’ academic satisfaction. Furthermore, it contradicts the finding that a chatbot is effective as it enables immediate ….  Read More