COMPRESSION OF DATA PARTITIONED INTO CLUSTERS
First Claim
1. A computer-implemented method for compressing data, wherein the data are partitioned into clusters of pieces of data, resulting from a K-means clustering of the data, each cluster having a centroid, the method comprising:
- applying a compression scheme to data that preserves a centroid of each respective cluster and reduces variance of each cluster; and
rescaling the data by moving pieces of data towards the centroid of the respective cluster.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention notably relates to a computer-implemented method for compressing data. The data is partitioned into clusters of pieces of data resulting from K-means clustering. Each cluster has a centroid. The method comprises applying (S10) a compression scheme to the data. The compression scheme preserves the centroid of each cluster and reduces the variance of each cluster. The method also comprises rescaling (S20) the data by moving the pieces of data towards the centroid of their cluster. Such a method improves the compression of data partitioned into clusters.
-
Citations
11 Claims
-
1. A computer-implemented method for compressing data, wherein the data are partitioned into clusters of pieces of data, resulting from a K-means clustering of the data, each cluster having a centroid, the method comprising:
-
applying a compression scheme to data that preserves a centroid of each respective cluster and reduces variance of each cluster; and rescaling the data by moving pieces of data towards the centroid of the respective cluster. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A computer-implemented method for decompressing data, wherein data is partitioned into clusters of pieces of data, resulting from a K-means clustering of the data, each cluster having a centroid, the method comprising:
rescaling data by moving pieces of data away from a centroid of the respective cluster.
-
11. A computer readable storage medium having recorded thereon a computer program for compressing data, wherein the data are partitioned into clusters of pieces of data, resulting from a K-means clustering of the data, each cluster having a centroid, the method comprising:
-
applying a compression scheme to data that preserves a centroid of each respective cluster and reduces variance of each cluster; and rescaling the data by moving pieces of data towards the centroid of the respective cluster.
-
Specification