Increasing Performance of Recommender Systems by Combining Deep Learning and Extreme Learning Machine | ||
| Journal of AI and Data Mining | ||
| دوره 10، شماره 2، تیر 2022، صفحه 185-195 اصل مقاله (1.52 M) | ||
| نوع مقاله: Original/Review Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jadm.2022.11248.2279 | ||
| نویسندگان | ||
| Z. Nazari1؛ H.R. Koohi* 2؛ J. Mousavi1 | ||
| 1Computer Engineering Department, Shomal University, Amol, Iran. | ||
| 2Computer Engineering Department, Shomal University, Amol, Iran | ||
| چکیده | ||
| Nowadays, with the expansion of the internet and its associated technologies, recommender systems have become increasingly common. In this work, the main purpose is to apply new deep learning-based clustering methods to overcome the data sparsity problem and increment the efficiency of recommender systems based on precision, accuracy, F-measure, and recall. Within the suggested model of this research, the hidden biases and input weights values of the extreme learning machine algorithm are produced by the Restricted Boltzmann Machine and then clustering is performed. Also, this study employs the ELM for two approaches, clustering of training data and determine the clusters of test data. The results of the proposed method evaluated in two prediction methods by employing average and Pearson Correlation Coefficient in the MovieLens dataset. Considering the outcomes, it can be clearly said that the suggested method can overcome the problem of data sparsity and achieve higher performance in recommender systems. The results of evaluation of the proposed approach indicate a higher rate of all evaluation metrics while using the average method results in rates of precision, accuracy, recall, and F-Measure come to 80.49, 83.20, 67.84 and 73.62 respectively. | ||
| کلیدواژهها | ||
| Recommender Systems؛ Extreme Learning Machine؛ Restricted Boltzmann Machine؛ Data sparsity؛ Clustering methods | ||
| مراجع | ||
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