=ADD= =reftype= 14 =number= 98-13 =url= ftp://ftp.risc.uni-linz.ac.at/pub/techreports/1998/98-13.ps.gz =year= 1998 =month= 07 =author= Blurock; Edward S. =title= Use of Atomic and Bond Parameters in a Spectral Representation of a Molecule for Physical Property Determination =abstract= A method was introduced is a generalization of simple counting procedures of atomic and bond information. Instead of being limited to traditional counts such as atomic number or types of bonds, a molecule is represented in terms of a {\it spectra} of atomic and bond parameters resulting from molecular calculations (semi-empirical, ab initio, etc.). Which semi-empirical or ab initio method one uses is the determining factor as to what information is represented in the molecular description. The main use of this method is in inductive learning analysis of the relationship between an experimental molecular property and molecular substructures. An example is given using semi-empirical calculations as the basis for the spectra. Since this spectral description comprises calculated physical parameters describing the atomic and bonding character of the molecule, the results of the analysis can be better associated with real physical mechanisms. =howpublished= Journal of Chemical Information and Comuputer Science, 1998 =sponsor=