Patent ID: 7433850

Claim:
A system comprising: means for providing multiple entries that are associated with points in a space, the multiple entries being arrangable into a first m×n matrix where m represents the number of points of interest in the space, and n represents the number of dimensions in the space, each row of the matrix having multiple entries; means for modifying values of at least some of the entries, wherein: modifying values that are used to modify said entries are not based on any other points in the space other than the one associated with the entry being modified; and the means for modifying changes some of said values to zero, and changes other values to non-zero; means for defining a second m×n matrix comprising the modified entries, the second m×n matrix being processed in accordance with Singular Value Decomposition techniques; and means for storing the second m×n matrix after processing in accordance with Singular Value Decomposition techniques.