[FLINK-4963] Tabulate edge direction for directed VertexMetrics

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Implemented
• Affects Version/s: 1.2.0
• Fix Version/s: 1.2.0
• Component/s: Library / Graph Processing
• Assignee: Greg Hogan
• Reporter: Greg Hogan
• Created: 28/Oct/16 16:28
• Updated: 08/Nov/16 17:48
• Resolved: 08/Nov/16 15:56

Description

The current implementation simply counts edges. We can do one better and tabulate unidirectional (u:v but no v:u) and bidirectional edges (u:v and v:u).

This is effectively the 'dyadic census'.

Issue Links

• links to: GitHub Pull Request #2725