Hey There, I'm trying to calculate the betweenness in a graph with Flink and Gelly, the way I tried this was by calculating the shortest path from every node to the rest of the nodes. This results in a Dataset of vertices which all have Datasets of their own with all the other vertices and their paths.
Next i used the Reduce function on the inner DataSets so every inner DataSet has 1 value. Now I have a DataSet of DataSets with 1 value each, but how do i efficiently transform this into a a single DataSet with values? I can do a mapping on the DataSet and use collect(), but i think that would be very costly -- View this message in context: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Retrieving-values-from-a-dataset-of-datasets-tp10108.html Sent from the Apache Flink User Mailing List archive. mailing list archive at Nabble.com.
