11. In this way, every finite partially ordered set can be represented as the reachability relation of a DAG. 12. The remainder of this article focuses on the more difficult problem of determining pairwise reachability in a directed graph. 13. The yellow points in this image are considered noise, and no valley is found in their reachability plot. 14. And the reachability of those par-5s can change hourly with the speed and direction of the prevailing winds. 15. The reachability relationship among the nodes of a polytree forms a partial order that has order dimension at most three. 16. For graphs containing negative cycles, shortest paths may be undefined, but reachability between pairs can still be noted. 17. Partitioning methods include : Path Searching; Reachability Matrix; Triangulation algorithm; and the powers of the Adjacency Matrix. 18. Which is the inverse of the average reachability distance of the object A " from " its neighbors. 19. If is a DAG, its transitive closure is the graph with the most edges that represents the same reachability relation. 20. The garbage collector ( GC ) uses an object's type of reachability to determine when to free the object.
