A density-based data clustering method, comprising a parameter-setting step for setting a scanning radius and a minimum threshold value, a dividing step for dividing a space of a plurality of data points according to the scanning radius, a data-retrieving step for retrieving one data point out of the...http://www.google.com.au/patents/US8171025?utm_source=gb-gplus-sharePatent US8171025 - Density-based data clustering method