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Figure 6 | EPJ Data Science

Figure 6

From: Reciprocity and impact in academic careers

Figure 6

Results on excess reciprocity after the removal of all self-citations. (a) Excess reciprocity, defined as per Eq. (1), within the clusters of authors shown in the left panel of Fig. 3. Thick solid lines denote the average within the cluster, while ribbon bands denote 95% confidence level intervals. (b) Excess reciprocity as a function of the number of citations received. Error bars denote 95% confidence level intervals. (c) Annual excess reciprocity values from 1950 to 2009. All results were obtained with the modularity-based null model (see Methods)

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