Image Retrieval of Tourism Landscape in Rural Revitalization Based on Wireless Communication Network

Table 4

Average and precision recall rates for the number of different attractions.

Search for the number of attractions (frequency)	Average precision (%)	Average recall (%)
50	63	85
100	61.2	81.9
200	59.7	79.4
400	57.9	77.6
800	55.3	77.0