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\multirow{2}{*}{ِِDataset} &  \multicolumn{6}{c|}{ SEG-SSC } & \multicolumn{6}{c|}{SDEMS-SSC} \\
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 &  Democratic-co & Tri-Training (KNN) & Tri-Training (C4.5) & Co-Forest & Co-Bagging (KNN) & Co-Bagging (C4.5) & Democratic-co & Tri-Training (KNN) & Tri-Training (C4.5) & Co-Forest & Co-Bagging (KNN) & Co-Bagging (C4.5)  \\\hline
Test1 & 100 & 6& 44 & 55 & 66 & 11 & 12 & 13 & 0 & 12 & 13 & 0 \\\hline
Test2 & 200 & 4 &45 & 56 & 67 & 120 & 130 & 140 & 6 & 12 & 13 & 0 \\\hline
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