Scalable 2-Pass Data Mining Technique for Large Scale Spatio-temporal Datasets

In this paper we present a system for mining very large spatio-temporal datasets. The system comprises two main layers: the mining layer and the visualization layer. The mining layer implements a new approach based on a 2-pass strategy to efficiently support the data-mining process, address the spatial and temporal dimensions of the dataset, and visualize and interpret results. In the first pass, the data objects are grouped according to their close similarity. In the second pass these groups are clustered to produce new models or patterns. The main reason for this 2-pass strategy is that the datasets are too large for traditional mining and cannot support the interactivity required by the visualization layer