[HAMA-591] Improve Pagerank

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.5.0
• Fix Version/s: 0.5.0
• Component/s: bsp core, graph
• Labels: newbie
• Assignee: Thomas Jungblut
• Reporter: Thomas Jungblut
• Created: 14/Jun/12 19:22
• Updated: 19/Jun/12 23:03
• Resolved: 19/Jun/12 13:08

Description

We can now add more aggregators, for example to get how many dangling nodes there are to spread probability mass correctly / get the number of global vertices. Example in JENA [1].

Also we can extract a RandomWalkVertex that is abstracting the very distinct behaviour of pagerank.

[1] https://github.com/castagna/jena-grande/blob/3c2d9f85bacb737acd575e3e287dc0fcc6bd96b9/src/main/java/org/apache/jena/grande/giraph/pagerank/PageRankVertex.java