Evaluation of learning systems based on e-learning is very important to determine learning success. The purpose of this study is to obtain predictive results from evaluating students who follow e-learning based learning systems. The data used is the result of logs of student learning activities taken from the LMS. The data used in this study were 641 user logs of student activity. In predicting the evaluation results based on the learning system on e-learning we use a neural network method based on swarm particle optimization. Neural Network has a problem in optimizing very large data so using swarm particle optimization can solve this problem. From the data testing we have done, the results obtained by the Neural Network method get an accuracy value of 95.47%, and the results of the AUC value of 97.90%. The observation of variables C, ∊ and population of Neural Network and particle swarm optimization use the K-Fold Cross Validation method. Then the researchers tested several choices on the attributes used. By using the Neural Network method based on the swarm particle optimization attribute, there are 9 predictor variables so that as many as 6 attributes are used, namely sports, chat, discussion, messages, Quiz exercises and total logs. The results show an accuracy rate higher than 97.50%, and an AUC value of 98.20%. So the accuracy value increased by 2.03% and the AUC increased by 0.3%. With accuracy and AUC values, the Artificial Neural Network algorithm based on particle optimization is very well categorized.
Objectives: For decades, scholars have debated the benefits of exercise during pregnancy. Birthing ball exercise is the latest among the antenatal exercises which pregnant women commonly perform in Indonesia. Therefore, the current study aimed to investigate whether pelvic rocking exercise using the birth ball is effective in correcting the fetal lie, presentation, and attitude in the late third trimester of pregnancy. Materials and Methods: To this end, pregnant women (n=114) enjoying the inclusion criteria were randomly divided into intervention (who were assigned to perform pelvic rocking using the birth ball) and control (without exercise) groups. Fetal lie, attitude, and presentation before and after the trials were determined in both groups by performing the abdominal palpation of Leopold’s maneuver. Results: Based on the results, the intervention group showed a higher proportion of fetus with flexed attitude (P<0.001) as compared to the control group. In addition, 49.1% of women in the intervention group indicated longitudinal lie compared to 29.8% of those in the control groups (P<0.001). Finally, 56 out of 57 women in the intervention group demonstrated head presentation whereas only 45 out of 57 women in the control group showed the same presentation (P<0.01). Conclusions: Overall, it is suggested that pelvic rocking exercises using the birth balls are useful for maintaining lies, fetal attitudes, and presentations and thus it is worth recommending for pregnant women.
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