Offset Alignment by Signal Processing Techniques II: Church, 1993 (Cont’d)
Signal processing methods are then used to compress the resulting plot.
The interesting part in a dot-plot is called the bitext maps. These maps show the correspondence between the two languages.
In the bitext maps, can be found faint, roughly straight diagonals corresponding to cognates.
A heuristic search along this diagonal provides an alignment in terms of offsets in the two texts.