Computational Coupling

Asks what the claim that a real connectome beats its rewiring depends on, and answers: four things besides the wiring. Varying the null ensemble, the unit model, the operating point or the readout each flips the gap's sign on identical data. Two ensembles both called degree-preserving randomisation disagree in sign on 6 of 10 cells, in significance on 3. Under an all-to-all readout, deleting the recurrent matrix costs nothing. The networks include the Drosophila central complex and antennal lobe from FlyWire v630. It also retracts an earlier version of itself, listing every withdrawn claim.

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#null-models#rewiring#motifs#reservoir-computing#negative-results#audit