[jira] [Closed] (MADLIB-1101) Graph - weakly connected components helper functions

["Frank McQuillan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MADLIB-1101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Frank McQuillan closed MADLIB-1101.
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> Graph - weakly connected components helper functions
> ----------------------------------------------------
>
>                 Key: MADLIB-1101
>                 URL: https://issues.apache.org/jira/browse/MADLIB-1101
>             Project: Apache MADlib
>          Issue Type: New Feature
>          Components: Module: Graph
>            Reporter: Frank McQuillan
>             Fix For: v1.12
>
>
> Context 
> Follow on from 
> https://issues.apache.org/jira/browse/MADLIB-1071
> Story
> As a data scientist, I want to use helper functions related to weakly connected components, so that I don't have to query the result table myself which is less efficient and subject to error.
> List of helper functions roughly in priority order:
> 1) biggest connected component
> 2) number of nodes per connected component (histogram)
> 3) whether two nodes belong to same or different connected components
> 4) count of connected cpt clusters
> 5) Set of all nodes which can be reached (have a path) from a specified vertex



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