An Approach for Spatial Index of Text Information Based on Cosine Similarity
Zheng Zhang · 2005
Spatial index for data based on similarity can be employed by applications on data mining and data visualiza- tion widely. To build spatial index of news title, this paper implements hierarchical cluster algorithm for news titles with CrossAVL as data structure for the similarity matrix storing and presents an available and efficiency method named as FastMap-MDS. Experiment results show that this method can work efficiently while the similarity informa- tion are kept well.