Research Article

Vision-Based Deep Q-Learning Network Models to Predict Particulate Matter Concentration Levels Using Temporal Digital Image Data

Table 6

Simulation study: sensitivity (Sen), specificity (Spe), Youden index, and standard errors in parentheses with an application to various video sequences and environmental conditions. The simulation was repeated 50 times.

# of frames 5 frames 10 frames 15 frames 20 frames

Windiness (Use of fan)
Sen 0.8411 (0.0408) 0.8495 (0.0452) 0.9152 (0.0335) 0.9116 (0.0304)
Spe 0.8796 (0.0299) 0.9141 (0.0266) 0.9411 (0.0221) 0.9419 (0.0200)
Youden 0.7207 (0.0377) 0.7636 (0.0526) 0.8563 (0.0738) 0.8535 (0.0496)

High Temperature (40°C)
Sen 0.8664 (0.0291) 0.8866 (0.0315) 0.8844 (0.0357) 0.9090 (0.0291)
Spe 0.9160 (0.0236) 0.9524 (0.0201) 0.9601 (0.0157) 0.9587 (0.0170)
Youden 0.7824 (0.0336) 0.8390 (0.0398) 0.8445 (0.0427) 0.8677 (0.0371)

High Humidity (50%)
Sen 0.8758 (0.0274) 0.9317 (0.0221) 0.9478 (0.0193) 0.9392 (0.0234)
Spe 0.9562 (0.0185) 0.9647 (0.0199) 0.9961 (0.0029) 0.9821 (0.0146)
Youden 0.8320 (0.0312) 0.8764 (0.0298) 0.9439 (0.0209) 0.9213 (0.0308)

High luminous Intensity (250lx)
Sen 0.8990 (0.0276) 0.9290 (0.0247) 0.9259 (0.0251) 0.9211 (0.0278)
Spe 0.8669 (0.0308) 0.8947 (0.0307) 0.9071 (0.0293) 0.9265 (0.0278)
Youden 0.7659 (0.0342) 0.8237 (0.0396) 0.8330 (0.0404) 0.8476 (0.0430)