Add personalization to pagerank#2554
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Two tests with expected values computed via NetworkX: - test_personalized_page_rank: all teleport weight on node 1 - test_personalized_page_rank_partial: weight split between nodes 1 and 3
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Two tests with expected values computed via NetworkX:
What changes were proposed in this pull request?
Add a personalization parameter to
unweighted_page_rankIf
personalizationis None, then we dispatch via trait to the exact same calculations as the previous, uniform variant to avoid rounding errors from non-commutative f64 arithmetic.Why are the changes needed?
To compute personalized page rank (e.g., in fraud-detection situations)
Does this PR introduce any user-facing change? If yes is this documented?
Yes, it adds the
personalizationparameter tounweighted_pagerank. This is added to docstrings in bothpythonandalgorithms/centralityHow was this patch tested?
The unit tests added were validated by computing the same values using networkx.
Are there any further changes required?
I am quite happy to also add a weighted variant