Table 3.

Retrieval performance of BoW histograms using single- and multiphase representations (mean ± standard deviation) (in press)

Phase	χ2			rLDA
	mAP	Prec@10	Prec@20	mAP	Prec@10	Prec@20
HAP	63.2 ± 5.7	70.9 ± 9.2	63.7 ± 6.9	90.8 ± 6.0	86.9 ± 8.0	86.9 ± 8.0
PVP	67.8 ± 5.8	73.1 ± 8.6	70.2 ± 8.5	90.9 ± 6.3	87.5 ± 8.9	87.6 ± 8.8
HDP	73.2 ± 5.7	83.1 ± 6.2	78.0 ± 7.3	90.8 ± 6.5	89.2 ± 8.3	89.2 ± 8.2
HAP + PVP	68.5 ± 13.1	72.4 ± 11.1	64.9 ± 7.7	88.8 ± 5.4	84.2 ± 8.0	84.2 ± 8.0
PVP + HDP	81.5 ± 13.6	78.9 ± 8.9	71.7 ± 8.2	93.1 ± 8.3	91.4 ± 10.4	91.2 ± 10.7
HAP + HDP	84.0 ± 5.0	77.5 ± 9.3	66.9 ± 7.4	91.4 ± 8.6	88.8 ± 11.2	86.3 ± 12.2
HAP + PVP + HDP	84.1 ± 5.0	77.5 ± 8.5	63.7 ± 7.8	94.5 ± 8.3	92.1 ± 12.1	87.0 ± 12.2