基于灰色相关性分析的调料风险预测研究 - 深度神经网络
Miao Zhang1, Yiran Wan2, Haiyang He2
1Chongqing Yongchuan District Center for Disease Control and Prevention, No. 471, Huilong Avenue, Yongchuan District, Chongqing, China.
Journal of food protection
|November 28, 2024
概括
这项研究使用机器学习开发了一种食品安全风险模型,用于使用大豆和等调味品. 深度神经网络模型准确地预测了调味剂风险水平,帮助监管策略.
科学领域:
- 食品科学 食品科学 食品科学
- 公共卫生 公共卫生
- 数据科学数据科学数据科学
背景情况:
- 食品安全对公共健康至关重要.
- 调味品的安全性对消费者的幸福感产生了重大影响.
- 评估调味品风险需要强大的方法.
研究的目的:
- 为调味品建立一个全面的风险评估模型.
- 利用灰色相关性分析和机器学习进行风险预测.
- 为食品安全控制战略提供数据驱动的基础.
主要方法:
- 灰色相关性分析用于指标权重和风险价值的制定.
- 机器学习模型 (DNN,RF,XGBoost) 用于全面的风险价值预测.
- 模糊合成分析用于风险级别分类.
主要成果:
- 分析了282个大豆和704个样本.
- 深度神经网络 (DNN) 模型展示了最佳的预测性能.
- 基于检测指数,DNN模型准确预测了基于检测指数的综合风险值和风险水平.
结论:
- 开发的模型有效地评估了调料安全风险.
- 机器学习,特别是DNN,为食品安全风险预测提供了强大的工具.
- 这种方法支持监管机构在食品安全管理方面的知情决策.
相关概念视频
Correlation and Regression
1.2K
In statistics, correlation describes the degree of association between two variables. In the subfield of linear regression, correlation is mathematically expressed by the correlation coefficient, which describes the strength and direction of the relationship between two variables. The coefficient is symbolically represented by 'r' and ranges from -1 to +1. A positive value indicates a positive correlation where the two variables move in the same direction. A negative value suggests a...
1.2K
Correlation
11.6K
In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
11.6K
Prediction Intervals
2.2K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
2.2K
Correlations
32.7K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
32.7K
Correlation of Experimental Data
217
Dimensional analysis simplifies complex physical problems and guides experimental investigations, but it does not provide complete solutions. It identifies the dimensionless groups that influence a phenomenon, but experimental data is needed to establish the specific relationships and validate theoretical predictions.
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity,...
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity,...
217
Spearman's Rank Correlation Test
682
Spearman's rank correlation test, also known as Spearman's rho, is a nonparametric method for assessing the strength and direction of association between two variables. This test is particularly valuable when the data distribution is unknown or when the assumption of normality does not hold. Named after the English psychologist and statistician Dr. Charles Edward Spearman, it serves as the nonparametric counterpart to Pearson's correlation coefficient.
Spearman's test calculates...
Spearman's test calculates...
682


