| 摘要 |
A method is described that may be used to generate numerical values indicative of frequencies of selected features in objects. The method includes arranging columns of a matrix in sum total order, wherein the matrix has one or more rows, and multiple intersecting columns. Rows represent objects, and columns represent selected features. Values reside at row-column intersections. A given value at an intersection of a given row and a given column represents the frequency of the selected feature represented by the given column in the object represented by the given row. The matrix is converted to a binary matrix (e.g., comprising binary values "0' and "1'). The columns are divided into multiple segments of equal length. Columns encompassed by each segment are replaced by a single column. Values at intersections of the rows and the single columns are set equal to numerical values indicative of ratios of a total number of one of the binary values (e.g., a total number of "1's) in a portion of the corresponding row encompassed by a segment to a total number of the one of the binary values (e.g. a total number of "1's) in the corresponding row. A computer system embodying the method is described, as is a carrier medium (e.g., a floppy disk or a compact disk read only memory (CD-ROM) disk) including program instructions for carrying out the method.
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