In the Steiner Forest problem, one is given a weighted simple graph and disjoint subsets of the nodes. The goal is to determine an edge set of small weight so that, for each subset, all of its nodes are connected. I will revisit this problem from a distributed point of view, where computations are performed by the graph's nodes, each of which initially knows only the weight of its incident edges and in which of the sets (if any) it participates. Communication is round-based, where in each round O(log n) bits can be sent over each edge.
This is a conference talk aiming at a non-specialist audience. Please join and enjoy!