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Table 1 Example of text features dataset structure, for reviews 1, 2 and 3

From: Survey of review spam detection using machine learning techniques

Review the hotel rooms were so great we had a time at this service is bad stay
Review1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
Review2 0 1 0 0 0 1 1 1 1 1 1 1 0 0 0 1
Review3 1 0 1 0 0 0 0 0 0 0 0 0 1 1 1 0