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Croatica Chemica Acta, Vol. 78 No. 4, 2005.

Original scientific paper

On Reducing Correlations between Topological Indices

Boris Hollas
Ivan Gutman
Nenad Trinajstić

Full text: english pdf 74 Kb

page 489-492

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Abstract

A very large number of molecular-graph-based structure descriptors, the so-called topological indices (TIs), have been proposed in the recent and current chemical literature. Many of these are highly intercorrelated, which makes their application in QSPR and QSAR studies difficult and purposeless. A class of such TIs (including the Platt number, the connectivity index, and the Zagreb indices) has been examined by methods of mathematical statistics and probability theory, and the reasons for their mutual correlation are revealed. The analysis has shown that by a slight modification of these TIs, their mutual correlation can be reduced or completely eliminated. These theoretical inferences have been corroborated by a computer experiment done on a database consisting of over 126000 distinct molecular structures.

Keywords

topological index; QSPR; QSAR; Platt number; connectivity index; Zagreb index

Hrčak ID:

2535

URI

https://hrcak.srce.hr/2535

Publication date:

20.12.2005.

Article data in other languages: croatian

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