1. Total similarity ≈ Number of words in similar parts of all data within the test range/Total number of words in the test paper.
2. The similarity rate of references ≈ the number of words of papers submitted for review and similar parts of their references/the total number of words of papers submitted for review.
3. Excluded reference similarity ratio = total similarity ratio-reference similarity ratio
4. Residual similarity ratio ≈ total similarity ratio-total similarity ratio of typical fragments