فهرس المقالات Gaussian copula function (normal) حرية الوصول المقاله صفحة الملخص نص كامل 1 - Dimension Reduction of Big Data and Deleting Noise and Its Efficiency in the Decision Tree Method and Its Use in Covid 19 Fazel Badakhshan Farahabadi Kianoush Fathi Vajargah Rahman Farnoosh 10.30495/ijm2c.2022.1947200.1239