A significant problem has always been to name places and buildings in a consistent manner (arising from the different sources used). For those in Iran, Saied Khaghani has checked a large list of places for consistency with corrections made in many cases. Only one of the various spellings is now used for Madrasah.
The computation of the patterns which are a lattice according to the definition used here was incorrect. This has been changed and should be correct, see Special Collection: Lattice patterns.
Internal documentation is available on the system design. Please contact Brian Wichmann if you are interested.