Research on Attribute Dimension Partition Based on SVM Classifying and MapReduce

The data analysis is closely related to data attribute dimension. The traditional extraction and partition of data attribute dimension is so manual and inefficiency as to not meet the needs of analysing big data. This paper proposed an attribute dimension partition scheme based on SVM classifying and MapReduce for analysing big data. This scheme improve traditional SVM classifying method by combining Euclidean distance theory for overcoming its disadvantages, and adopts punish coefficient to reduce the unbalance of data distribution. With the improved SVM classifying method, the implementation of attribute dimension partition take MapReduce model of Hadoop as process engine, use TF–IDF vector to save the extracted attribute dimension, and use k -means clustering algorithm to clustering partition. The experiment result shows that the execution efficiency of the proposed method is enhanced, and while the rationality of partition is guaranteed, the increasing of data attributes does not significantly increase the execution time.