Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:We then employed receiver operating characteristic (ROC) curves [34] to measure the performance of DGCA and EBcoexpress on detecting the 114 truly differentially correlated gene pairs out of the total 179,700 gene pairs, for six different numbers of simulated samples in each condition, i.e., n = 10, 30, 50, 70, 90, and 100.
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