A note on 'A New Approach To Compute Wiener Index'

TL;DR

This note clarifies that a recent method for computing the Wiener index of certain graphs is actually a well-known approach, equivalent to the established 'cut method' from 1995, highlighting its prior existence and usage.

Contribution

The paper identifies and clarifies that the recent method for Wiener index computation is not new but is equivalent to an existing, well-established 'cut method' from 1995.

Findings

The method discussed is not novel but well-known.

It is equivalent to the 'cut method' introduced in 1995.

The method has been used in multiple prior studies.

Abstract

In this note, we discuss the method explained in the recent paper [P. Manuel, I. Rajasingh, B. Rajan, R. Sundara Rajan, A New Approach To Compute Wiener Index, Journal of Computational and Theoretical Nanoscience 10, (2013) 1515-1521.] for computing the Wiener index of special chemical graphs. The method is actually already well-known and equivalent to the 'cut method' introduced in 1995 by Klavzar, Gutman and Mohar, and used in multiple papers for computing various distance based graph invariants.