The paper "Near-Optimal (1 + ε)-Approximate Fully-Dynamic All-Pairs Shortest Paths in Planar Graphs" by Arnold Filtser, Gramoz Goranci, Neel Patel and...
The paper "Expander Hierarchies for Normalized Cuts on Graphs" by Kathrin Hanauer, Monika Henzinger, Robin Münk, Harald Räcke, and Maximilian Vötsch...