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neo4j / graph-data-science

Source code for the Neo4j Graph Data Science library of graph algorithms.
https://neo4j.com/docs/graph-data-science/current/
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Update page-rank.adoc - Error in analysis. #304

Open mbeaufre opened 2 months ago

mbeaufre commented 2 months ago

Issue: Error in the analysis made in a part of the PageRank Documentation Criticality: Low Action taken: Removing the part of the analysis that is wrong.

Description: In the section on the Tolerance configuration parameter, it is stated:

"Also, note that the nodes 'About', 'Link' and 'Product' now have the same score, while with the default value of tolerance the node 'Product' has higher score than the other two."

This statement is false from my understanding. The reason why the node 'Product' had a higher score was ONLY the introduction of relationshipWeightProperty: 'weight' in the parameters. In reality, the contrary of the statement can be observed (equal score for nodes 'About', 'Link' and 'Product') in all examples not using weight.

mbeaufre commented 2 months ago

Issue: Error in the analysis made in a part of the PageRank Documentation Criticality: Low Action taken: Removing the part of the analysis that is wrong.

Description: In the section on the Tolerance configuration parameter, it is stated:

"Also, note that the nodes 'About', 'Link' and 'Product' now have the same score, while with the default value of dampingFactor the node 'Product' has higher score than the other two."

This statement is false from my understanding. The reason why the node 'Product' had a higher score was ONLY the introduction of relationshipWeightProperty: 'weight' in the parameters. In reality, the contrary of the statement can be observed (equal score for nodes 'About', 'Link' and 'Product') in all examples not using weight.