教師資料查詢 | 類別: 期刊論文 | 教師: 林丕靜 NANCY PEI-CHING LIN (瀏覽個人網頁)

標題:An Axis-Shifted Grid-Clustering Algorithm
學年97
學期2
出版(發表)日期2009/06/01
作品名稱An Axis-Shifted Grid-Clustering Algorithm
作品名稱(其他語言)
著者張忠義; Chang, Chung-i; 林丕靜; Lin, Nancy P.; 詹念怡; Jan, Nien-yi
單位淡江大學資訊工程學系
出版者臺北縣淡江大學
著錄名稱、卷期、頁數淡江理工學刊=Tamkang journal of science and engineering 12(2)頁183-192
摘要These spatial clustering methods can be classified into four categories: partitioning method, hierarchical method, density-based method and grid-based method. The grid-based clustering algorithm, which partitions the data space into a finite number of cells to form a grid structure and then performs all clustering operations to group similar spatial objects into classes on this obtained grid structure, is an efficient clustering algorithm. To cluster efficiently and simultaneously, to reduce the influences of the size and borders of the cells, a new grid-based clustering algorithm, an Axis-Shifted Grid-Clustering algorithm (ASGC), is proposed in this paper. This new clustering method combines a novel density-grid based clustering with axis-shifted partitioning strategy to identify areas of high density in the input data space. The main idea is to shift the original grid structure in each dimension of the data space after the clusters generated from this original structure have been obtained. The shifted grid structure can be considered as a dynamic adjustment of the size of the original cells and reduce the weakness of borders of cells. And thus, the clusters generated from this shifted grid structure can be used to revise the originally obtained clusters. The experimental results verify that, indeed, the effect of this new algorithm is less influenced by the size of cells than other grid-based ones and requires at most a single scan through the data.
關鍵字Data Mining;Grid-Based Clustering;Significant Cell;Grid Structure;Coordinate Axis
語言英文
ISSN1560-6686
期刊性質國內
收錄於EI;
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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