As an initial simple disambiguation I propose making two new tags (which may or may not persist):
- nearest-neighbor-raster for the nearest neighbourneighbor resampling method used in raster processing
- nearest-neighbour-vectornearest-neighbor-vector for proximity operations in vector processing
We can then work towards how existing "nearest neighbor" questions can be allocated to raster and vector before looking at how best to tag within the raster and vector, and how best to name the two master tags for raster and vector nearest neighbor analysis respectively.