ABSTRACT

Today’s real world databases are highly susceptible to noisy, missing and inconsistent data due to their typically huge size data and their origin from multiple, heterogeneous sources. Hence, pre-processing of data is necessary to help improve the quality of data and consequently the mining results. There are number of data pre-processing techniques. In this paper, we would like to discuss two different approaches for data preprocessing one based on XML and other based on text file. But the basic algorithm and steps involved in pre-processing are considered same for both the approaches.