Patent Document ID: 20130246434
Application ID: 13886932
Patent Flag: 0

Claim One:
1. A computer implemented method of identifying clusters of data items, wherein a data item is associated with one or more values using an information system comprising: defining a plurality of lattice points in a data space able to contain some of said data items of interest, said lattice points spaced according to a lattice rule; calculating weights for said lattice points using one or more of said data items according to a weighting rule; determining a density at said lattice points relating a weight at a lattice point to weights at nearby lattice points using a density function; creating, for a lattice point, a directional association with at least one other lattice point using an association rule; following directional associations between lattice points to determine terminal states for one or more pointer paths; assigning each data item to a lattice point according to an assignment rule; and using terminal states of said pointer paths to determine a cluster for said data item.