Track B: directedness of contact graph

Hi organizers,

Just wanted to quickly double check whether having directed edges in the contact graph was intended (i.e. pid1->pid2 present does not imply pid2->pid1; e.g. a person sneezes into another person one-way) or was it an artefact of preprocessing since it’s natural to assume contacts are undirected for disease spread?


Hi @kzliu, the contact network should be considered to be an undirected graph.

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