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Ranking scientific authors is an important but challenging task, mostly due to the dynamic nature of the evolving scientific publications. The basic indicators of an author's productivity and impact are still the number of publications and the citation count (leading to the popular metrics such as h-index, g-index etc.). H-index and its popular variants are mostly effective in ranking highly-cited authors, thus fail to resolve ties while ranking mediumcited and low-cited authors who are majority in number. Therefore, these metrics are inefficient to predict the ability of promising young researchers at the beginning of their career. In this paper, we propose C 3 -index that combines the effect of citations and collaborations of an author in a systematic way using a weighted multi-layered network to rank authors. We conduct our experiments on a massive publication dataset of Computer Science and show that -(i) C 3index is consistent over time, which is one of the fundamental characteristics of a ranking metric, (ii) C 3 -index is as efficient as h-index and its variants to rank highly-cited authors, (iii) C 3 -index can act as a conflict resolution metric to break ties in the ranking of medium-cited and low-cited authors, (iv) C 3index can also be used to predict future achievers at the early stage of their career.

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