Abstract :
Attribute or feature selection plays an important role in the process of data mining. In general the dataset contains more number of attributes. But in the process of effective classification not all attributes are relevant. Attribute selection is a technique used to extract the ranking of attributes. Therefore, this paper presents a comparative evaluation study of classification algorithms before and after attribute selection using Waikato Environment for Knowledge Analysis (WEKA). The evaluation study concludes that the performance metrics of the classification algorithm, improves after performing attribute selection. This will reduce the work of processing irrelevant attributes.
Keyword :
Attribute filters, attribute selection, classification, data mining, Weka