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Table 4 Ratios of successful extraction under different attacks for sheets

From: Semi-structured data protection scheme based on robust watermarking

Type of attackRatios of successful extraction
File1.csv (size: 500×23)File2 .csv (size: 1000×6)File3 .csv (size: 2000×2)File4 .csv (size: 5000×38)
No Attack10/1010/1010/1010/10
Sorting10/1010/1010/1010/10
Row deletionPdr = 20%10/1010/1010/1010/10
Pdr = 40%10/1010/1010/1010/10
Pdr = 60%10/1010/1010/1010/10
Pdr = 80%10/1010/1010/1010/10
Value modificationPm = 20%10/1010/1010/1010/10
Pm = 40%10/1010/1010/1010/10
Pm = 60%10/1010/1010/1010/10
Pm = 80%10/1010/1010/1010/10
Row insertionPir = 10%10/1010/1010/1010/10
Pir = 20%10/1010/1010/1010/10
Column insertionli = 110/105/104/1010/10
li = 59/101/100/108/10