alt Hacker NewsIt's a bit unclear what the map visualisations are showing to me, but I don't think your interpretation is correct. They even say:
> Our evaluation methods reveal they are very far from recovering the true street map of New York City. As a visualization, we use graph reconstruction techniques to recover each model’s implicit street map of New York City. The resulting map bears little resemblance to the actual streets of Manhattan, containing streets with impossible physical orientations and flyovers above other streets.
My read of
> Edges exit nodes in their specified cardinal direction. In the zoomed-in images, edges belonging to the true graph are black and false edges added by the reconstruction algorithm are red.
is that the model output edges, valid ones were then colored black and bad ones colored red. But it's a bit unclear so you could be right.