EXPERIMENATAL EVALUATION Table 3:Query Processing Performance. BitFunnel PEF MG4] Lucene Match Time vs.Quadwords QPS 21,427 14,675 6.866 6,310 False positives(%) 1.62 0.00 0.00 0.00 A Bits per posting 38.43 7.64 7.85 Impact of Frequency Conscious DQ 558 1,921 875 QPS 8,674 5,049 3,636 3,011 Signatures and Higher Rank False positives(‰) 4.32 0.00 0.00 0.00 IDF B Bits per posting 20.72 7.33 7.59 Rows DQ 419 689 479 3 QPS 12,722 3,959 3,096 4,120 。4 False positives (% 3.88 0.00 0.00 0.00 5 .Comparison with C Bits per posting 16.91 6.63 6.88 DQ 752 450 Contemporary Indexes 598 OPS 57,014 8,268 5,900 3,632 False positives (% 2.43 0.00 0.00 0.00 D Bits per posting 13.69 6.25 6.28 DQ 4,163 1,322 939 QPS 105,782 13,151 7,349 4,991 False positives(%) 2.64 0.00 0.00 0.00 Bits per posting 11.69 6.15 6.15 DQ 9,047 2,139 1,195 Match Time vs. Quadwords  Impact of Frequency Conscious Signatures and Higher Rank Rows  Comparison with Contemporary Indexes