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Updated: Sep 9, 2025

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An R-Based Landscape Validation of a Competing Risk Model
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积极学习增强的深度神经网络 (AL-DNN) 用于垃圾填埋场泄漏风险的不确定性分析
Huimin Zhang1, Feng Chen2, Ya Xu3
1State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Shandong Technology and Business University, Yantai, Shandong 264005, China.
Journal of hazardous materials
|August 31, 2025
概括
这项研究引入了一种主动学习增强的深度神经网络 (AL-DNN) 模型,用于有效地评估垃圾填埋场漏的地下水污染风险. AL-DNN模型显著减少了计算时间,同时保持了准确性,使环境风险管理更快.
科学领域:
- 环境科学
- 水文地质学
- 数据科学
背景情况:
- 垃圾填埋场由于漏水而造成环境风险,影响地下水和公共健康.
- 准确评估泄漏不确定性对于有效的风险管理至关重要.
- 传统的不确定性评估方法在计算上昂贵且复杂.
研究的目的:
- 开发一个计算效率高的地下水污染运输替代模型.
- 提高风险评估的准确性,同时尽量减少数据要求.
- 提供快速可靠的地下水污染风险评估的实用工具.
主要方法:
- 开发了一个主动学习增强深度神经网络 (AL-DNN) 模型.
- AL-DNN模型使用由地下水仿真数值模型 (GSNM) 生成的数据集.
- 使用积极的学习策略来选择模型培训的信息样本.
主要成果:
- 通过AL-DNN模型,使用较少的样本 (60个样本) 实现了与传统方法相比的准确性.
- 与传统方法相比,计算时间减少了90%.
- 该模型成功预测了模拟垃圾填埋场泄漏场景中的化学氧气需求 (COD) 度分布.
结论:
- AL-DNN模型为地下水污染风险评估提供了一个计算效率高且准确的替代方案.
- 该方法有效地确定了高污染风险的区域,监测井1的最大超值概率为0.76.
- 这种方法支持快速可靠的垃圾填埋环境风险管理.
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