clustering coefficient update #1909
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What changes were proposed in this pull request?
Refactor global and local clustering coefficient. Add two variants of batch local clustering coefficient.
Why are the changes needed?
It's currently extremely inefficient to run LCC on a group of nodes. The batch versions should do a better job of parallelizing the process and reducing overhead.
Does this PR introduce any user-facing change? If yes is this documented?
'clustering_coefficient' is renamed to 'global_clustering_coefficient'. All of the clustering coefficient variants have been moved to a submodule of 'metrics' called 'clustering_coefficient'. The new batch implementations have corresponding docstrings.
How was this patch tested?
The two methods were tested for parity against the existing implementation in Rust and Python.
Are there any further changes required?
Currently working on an approximate version that uses HyperLogLog.