Problem: in CellCellConnectivityLong an absent edge row is ambiguous. In a dense EM connectome it means "probed, zero synapses"; in pairwise recordings it means "never tested".
Decide: per-edge probed flag vs probed-ness implied by measurement context (dense vs sparse); per-modality directionality (rabies retro/anterograde probes one direction by design), flag per directed edge or per-dataset declaration; which "probed" assumption fills unwritten cells in long→matrix conversion (0 vs not-probed).
Derive-on-read vs persist.
Auto-population: every measured row implies probed=true
Related: connectome_id, QC flags.
Problem: in
CellCellConnectivityLongan absent edge row is ambiguous. In a dense EM connectome it means "probed, zero synapses"; in pairwise recordings it means "never tested".Decide: per-edge
probedflag vs probed-ness implied by measurement context (dense vs sparse); per-modality directionality (rabies retro/anterograde probes one direction by design), flag per directed edge or per-dataset declaration; which "probed" assumption fills unwritten cells in long→matrix conversion (0 vs not-probed).Derive-on-read vs persist.
Auto-population: every measured row implies
probed=trueRelated: connectome_id, QC flags.