Hi David,
> But then you need to store the result. You can store these metrics as > relationships in neo4j, and then just update them for each user when > you recompute. You can find the user nodes via indexing. Maybe it's > acceptable that some metrics are out of date, so you can just > background process them continuously. I already have background processes that go through all users and calculate new new pairs. But then in order to do that I do need to exclude the pairs I already have... because it would be silly and as the relationship density grows the probablity of calculating a pair again would be higher and higher... Would I be able to do that kind of query using indexing? > Depending on your scenario, if your users know each other, it might be > interesting to start computing in a foaf style order (breadth first). > Remember, the power is in the relationships. Isolated nodes are not > interesting. You mean I look first for possible pairs with users that are friends of friends instead of randomly? We are also interesting in storing friendship relationship so that sounds interesting. That would be a different type of query: Traverse the graph from node A to nodes which are friends of friends of A and have no match relationship with A. I guess that is not difficult to implement using Neo4j? Thanks for your input David! _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
