Chunk #43 — Materials and Methods — Graph indexes — Efficiency

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Defecting or not defecting: how to "read" human behavior during cooperative games by EEG measurements.

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If there is no path from i to j, dij = ∞ and the couple (i,j) does not contribute to the graph efficiency. Large distances imply small efficiency, while short distances imply high efficiency, with the efficiency being maximal in a fully connected graph.