Github user vasia commented on the pull request:
https://github.com/apache/flink/pull/420#issuecomment-77687686
Hi @balidani! Thanks for the example :))
I'm a bit confused about the directed / undirected case. I tried testing
with both a directed and an undirected input and both my tests failed.. See
[here](http://gist.github.com/vasia/ad68268118b6f895cf7c#file-lcc-example-tests)
are the test cases I tried.
I suppose the directed case doesn't work because you only consider the
out-neighbors, when you should count all. And for the undirected case, I think
that the division by 2 you're making is giving a wrong result, because you're
not counting edges, just out-neighbors neighbors.
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