PATTY

PATTY is the abbreviation for a Programmable ATom TYping system, which is based on a subgraph isomorphism search, e.g. SMARTS

References

@Article{bs93,
 author = {B. L. Bush and R. P. Sheridan},
 title = {{PATTY}: {A} {P}rogrammable {A}tom {T}yper and {L}anguage for {A}utomatic 
          {C}lassification of {A}toms in {M}olecular {D}atabases.},
 journal = {J. Chem. Inf. Comput. Sci.},
 year = {1993},
 volume = {33},
 pages = {756-762},
}