Re: [Neo4j] Re: Question about Relationships number and their influence on algorithms

2014-05-27 Thread Craig Taverner
Hi, I just took a peek at the algorthm for the cost at https://github.com/neo4j/neo4j/blob/master/community/graph-algo/src/main/java/org/neo4j/graphalgo/impl/util/GeoEstimateEvaluator.java . I did not double-check the maths, but this does not look like a distance function over a sphere. This look

[Neo4j] Re: Question about Relationships number and their influence on algorithms

2014-05-27 Thread Angelo Immediata
Hi Mattias, hi Michael Thank you for answering me @Mattias: I was sure about what you wrote about relationships and influence on algorithms, but now I'm confident that I was right :). But, on the other side, now I'm totally confused on the reason why the AStar algorithm has so poor performance

[Neo4j] Re: Question about Relationships number and their influence on algorithms

2014-05-19 Thread Angelo Immediata
Hi there We have some questions about A* Implementation; we were thinking to use the TraversalAStar, since we really like the traversal framework and it's simpler to wotk on it By the way, also by using the not traversal AStar (the classical implementatin), as estimateevaluator we used the Com