We find that in most of such cases, the sense cluster reported as 'birth' contained many new terms (and therefore, the network properties have undergone change) but the implied sense was already present in one of the previous clusters with very few common words (and therefore, the new cluster contained > 80% new words, and is being reported as 'birth' in <cite>Mitra et al. [19]</cite> ). Two such examples are given in Table 13 . The <cite>split-join algorithm</cite> proposed in <cite>Mitra et al. [19]</cite> needs to be adapted for such cases.