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This paper presents a new software-implemented data error detection technique called Full Duplication and Selective Comparison. Our technique combines the ideas of existing techniques in order to increase the fault detection ratio, decrease the imposed code size and execution time overhead. As the name gives away, we opt to duplicate the entire code base and place comparison instructions in critical basic blocks only. The critical basic blocks are the blocks with two or more incoming edges. Wedoi:10.1109/prdc.2018.00037 dblp:conf/prdc/ThatiVPPB18 fatcat:k224dmkulbeljcjdipm6gi74w4