TY - JOUR T1 - New Modified Dynamic Clustering Algorithm AU - Ibrahim, Mohamed AU - Nsaif Jasim, Mahdi JO - Journal of Engineering and Applied Sciences VL - 14 IS - 18 SP - 6742 EP - 6746 PY - 2019 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2019.6742.6746 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2019.6742.6746 KW - Dynamic clustering KW -optimal clustering KW -k-means algorithm KW -clustering quality KW -weather data KW -optimal number AB - k-clustering is one of the most common ways to divide the extracted data into clusters which is considered a type of knowledge discovery. While there is a great research effort to determine the key features of mass K, further investigation is needed to determine whether the optimal number of clusters can be found during the process based on the cluster quality scale. This study presents a modified k-means algorithm used to improve cluster quality and optimizing the optimal number of clusters. The k-means algorithm takes the number of clusters (k) as input from the user. But in the practical scenario, it is difficult to determine the number of clusters in advance. The evolution of the proposed method is equivalent to finding the value of the threshold. The suggested threshold value will be used as a distance between the center of each group and other group’s centers. Applying the modified algorithm improves the results of enter cluster is 0.111 and entra cluster is 0.0034. ER -