[ https://issues.apache.org/jira/browse/SPARK-24217?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
shahid reopened SPARK-24217: ---------------------------- > Power Iteration Clustering is not displaying cluster indices corresponding to > some vertices. > -------------------------------------------------------------------------------------------- > > Key: SPARK-24217 > URL: https://issues.apache.org/jira/browse/SPARK-24217 > Project: Spark > Issue Type: Bug > Components: ML > Affects Versions: 2.4.0 > Reporter: shahid > Priority: Major > Fix For: 2.4.0 > > > We should display prediction and id corresponding to all the nodes. > Currently PIC is not returning the cluster indices of neighbour IDs which are > not there in the ID column. > As per the definition of PIC clustering, given in the code, > PIC takes an affinity matrix between items (or vertices) as input. An > affinity matrix > is a symmetric matrix whose entries are non-negative similarities between > items. > PIC takes this matrix (or graph) as an adjacency matrix. Specifically, each > input row includes: > * {{idCol}}: vertex ID > * {{neighborsCol}}: neighbors of vertex in {{idCol}} > * {{similaritiesCol}}: non-negative weights (similarities) of edges between > the vertex > in {{idCol}} and each neighbor in {{neighborsCol}} > * *"PIC returns a cluster assignment for each input vertex."* It appends a > new column {{predictionCol}} > containing the cluster assignment in {{[0,k)}} for each row (vertex). > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org