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Table 1 A part of the training samples

From: Design and analysis of a general data evaluation system based on social networks

  NPV NPVR ROI IRR PC PT ex
1 474 13.25 9.66 12.65 6052.36 17.1 1
2 148.22 26.2 18 12.25 400 5.59 1
3 − 63.54 − 0.2 0.4 9.06 105.9 19.5 0.5
4 − 136.5 −1.3 0.2 8.22 300.28 10.25 0.5