# Detection of Students' Problems in Distance Education Using Topic Modeling and Machine Learning
## 5 Discussion and Limitation
In addition, students may encounter technical issues as they lack skills related to using computer applications. All students could experience access issues in terms of problems with technology or lack of access [9; 39]. In addition, there are some homes where there are many people with limited numbers of digital devices. * Health Issues: Our analysis finds that students suffer from stress and anxiety problems. Moreover, online learning has increased the time students spend on digital devices, and that may impact on student's health. This radical change in learning style affects the lifestyle and can lead to loneliness, anxiety, and depression. Some studies have revealed that students are suffering from stress and anxiety during this pandemic period [40; 41]. * Attitude and Ethical Issues: Another factor influencing students' success is their motivation and discipline. A significant problem in distance education is the ability of student to devote to their learning. A percentage of 4.8% of tweets' content is related to the motivation and discipline of students. Some students misunderstand the distance education; they deal with it as a vacation because they are at home through the learning process. This finding confirmed the results stated by [9] that students did not absorb the importance of the lessons because of their perceptions and lack of face-to-face communication. A lack of control leads students not to take their tasks seriously [42]. The issue of cheating is one of the most declared problems in online education during COVID-19. The most noted reason for cheating is the lack of proper monitoring systems. Teachers concerned about the risk of cheating feel that students might cheat to get better scores. Cheating in an online environment takes less effort compared to face-to-face [43]. According to [44], the perception of cheating of the majority of students is consistent with a sociologic perspective of deviance. Therefore, understanding students' perception of cheating in online learning is important for institutions and developers to raise the level of honesty in the academic environments. By comparing our finding with recent studies, we found that education issues were dominant among other issues. In particular, a lack of focus was noted as the most significant educational challenge. This result ties well with the finding by [PERSON] et al. [45] wherein the highest percentage of challenges for students was pedagogical challenges followed by technical challenges. In contrast, they found that the lack of personal contact was the highest pedagogical challenge which comes second in our finding. In addition, an agreement to our finding by [27] reveals students found interactions through the class challenging, and it is easy to lose focus. The most common technological issues found by our study are lack of tech equipment and poor internet connection, which are consistent with what has been found in [9], in which the lack of infrastructure and unreliable internet connection are the largest challenges in technology. Furthermore, they showed that technological challenges are the main source of the problems that students meet in their distance education process. More interestingly, [PERSON]. [45] found that a lack of technological devices is not an issue because the technical infrastructure was already in place. However, using the technological tools was the most technical challenge, which disagrees with our finding. Another study by [PERSON] [26] was broadly in line with our result that showed that the technical barriers was the most discussed theme in their data because of the insufficient maintenance and connectivity. Inaddition, we agree with [PERSON] [28], who suggested that students must acquire online devices to ensure the success of their learning experience. Such lack of tech devices could negatively impact on distance education. A finding by [PERSON] et al. [46] reveals that time organization was improved because online sessions save students' time.