[SYSTEMDS-2367] Extend scheme Disjoint_Random

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Resolved
• Fix Version/s: SystemML 1.2
• Assignee: LI Guobao
• Reporter: LI Guobao
• Created: 06/Jun/18 21:45
• Updated: 18/Jun/18 09:45
• Resolved: 07/Jun/18 20:24

Description

It aims to extend the scheme of data partition.

• Disjoint_Random: for each worker, use a permutation multiply P[beg:end,] %*% X, where P is constructed for example with P=table(seq(1,nrow(X)),sample(nrow(X), nrow(X))), i.e., sampling without replacement to ensure disjointness