sebwrede commented on a change in pull request #1060:
URL: https://github.com/apache/systemds/pull/1060#discussion_r493266586
##########
File path:
src/main/java/org/apache/sysds/runtime/privacy/finegrained/FineGrainedPrivacyList.java
##########
@@ -35,11 +35,61 @@
private ArrayList<Map.Entry<DataRange, PrivacyLevel>>
constraintCollection = new ArrayList<>();
+ @Override
+ public PrivacyLevel[] getRowPrivacy(int numRows, int numCols) {
+ PrivacyLevel[] privacyLevels = new PrivacyLevel[numRows];
+ for (int i = 0; i < numRows; i++) {
+ long[] beginRange1 = new long[] {i, 0};
+ long[] endRange1 = new long[] {i, numCols};
+ privacyLevels[i] = getStrictestPrivacyLevel(new
DataRange(beginRange1, endRange1));
+ }
+ return privacyLevels;
+ }
+
+ @Override
+ public PrivacyLevel[] getColPrivacy(int numRows, int numCols) {
+ PrivacyLevel[] privacyLevels = new PrivacyLevel[numCols];
+ for (int i = 0; i < numCols; i++) {
+ long[] beginRange = new long[] {0, i};
+ long[] endRange = new long[] {numRows, i};
+ privacyLevels[i] = getStrictestPrivacyLevel(new
DataRange(beginRange, endRange));
+ }
+ return privacyLevels;
+ }
+
+ private PrivacyLevel getStrictestPrivacyLevel(DataRange searchRange){
+ PrivacyLevel strictestLevel = PrivacyLevel.None;
+ for ( Map.Entry<DataRange, PrivacyLevel> constraint :
constraintCollection ) {
Review comment:
I actually started implementing a tree structure when I added
fine-grained privacy, but we decided that it was not relevant for now and that
we could do it later when we have the propagation of fine-grained constraints
ready.
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