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Table 4 Experimental results for different number of data owners. The cardinality of intersection of sets is fixed, which is 1,515,520. The numbers are in term of seconds

From: A privacy-preserving distributed filtering framework for NLP artifacts

Number of Data Owners Intersecting Hashes (s) Encryption (s) Homomorphic Operation (s) Decryption (s) Network Comm. (s) Total Time (s)
2 1.69 8.17 54.72 6.29 0.32 71.19
3 2.72 8.19 55.49 6.33 0.39 73.12
4 3.53 8.28 55.51 6.60 0.46 74.38
5 4.63 8.22 56.36 6.67 0.53 76.41
6 5.36 8.24 58.01 7.11 0.60 79.32