Food Safety Monitoring Indicators and Early Warning Level Setting Based on Time Series Analysis
, oraz
17 mar 2025
O artykule
Data publikacji: 17 mar 2025
Otrzymano: 16 lis 2024
Przyjęty: 14 lut 2025
DOI: https://doi.org/10.2478/amns-2025-0297
Słowa kluczowe
© 2025 Xian Liu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Figure 1.
Figure 2.
The weight of food safety detection indicators
| Primary indicator | Weight | Secondary indicator | Weight | Absolute weight |
|---|---|---|---|---|
| A1 | 0.2583 | B1 | 0.2264 | 0.0585 |
| B2 | 0.6845 | 0.1768 | ||
| B3 | 0.0891 | 0.0230 | ||
| A2 | 0.6370 | B4 | 0.0455 | 0.0290 |
| B5 | 0.0959 | 0.0611 | ||
| B6 | 0.4342 | 0.2766 | ||
| B7 | 0.0529 | 0.0337 | ||
| B8 | 0.2692 | 0.1715 | ||
| B9 | 0.0627 | 0.0399 | ||
| B10 | 0.0396 | 0.0252 | ||
| A3 | 0.1047 | B11 | 0.5339 | 0.0559 |
| B12 | 0.3849 | 0.0403 | ||
| B13 | 0.0812 | 0.0085 |
The contrast matrix of the first level index
| A | A1 | A2 | A3 |
|---|---|---|---|
| A1 | 0.5 | 0 | 1 |
| A2 | 1 | 0.5 | 1 |
| A3 | 0 | 0 | 0.5 |
The judgment matrix of the first level index
| A | A1 | A2 | A3 |
|---|---|---|---|
| A1 | 1 | 1/3 | 3 |
| A2 | 3 | 1 | 5 |
| A3 | 1/3 | 1/5 | 1 |
ARMA (2,1,1) model parameter
| Term | Symbol | Coefficient | Standard error | z | P | 95% CI |
|---|---|---|---|---|---|---|
| Constant term | -0.001 | 0.002 | -3.659 | 0.001 | -0.003~-0.001 | |
| AR parameter | 0.284 | 0.108 | 2.637 | 0.013 | -0.003~-0.001 | |
| 0.051 | 0.119 | 0.414 | 0.697 | -0.003~-0.001 | ||
| MA parameter | -1.037 | 0.028 | -32.523 | 0.001 | -0.003~-0.001 |
White noise test results
| Term | Symbol | Coefficient | Standard error | z | P | 95% CI |
|---|---|---|---|---|---|---|
| Constant term | -0.001 | 0.002 | -3.659 | 0.001 | -0.003~-0.001 | |
| AR parameter | 0.284 | 0.108 | 2.637 | 0.013 | -0.003~-0.001 | |
| 0.051 | 0.119 | 0.414 | 0.697 | -0.003~-0.001 | ||
| MA parameter | -1.037 | 0.028 | -32.523 | 0.001 | -0.003~-0.001 |