[FLINK-2278] SparseVector created from Breeze Sparsevector has wrong size

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Labels: ML
• Assignee: Till Rohrmann
• Reporter: Christoph Alt
• Created: 26/Jun/15 10:02
• Updated: 26/Jun/15 10:45
• Resolved: 26/Jun/15 10:33

Description

The following code doesn't return true when testing equality of two SparseVectors, one converted from a Breeze SparseVector.

val flinkVector = SparseVector.fromCOO(3, (1, 1.0), (2, 2.0))
val breezeVector = linalg.SparseVector(3)(1 -> 1.0, 2 -> 2.0)

flinkVector.equalsVector(breezeVector.fromBreeze)

The reason is that fromBreeze takes the number of non-zero elements SparseVector.used as size when creating a SparseVector instead of the dimensionality SparseVector.length.