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埋立地漏れリスクの不確実性分析のためのアクティブ・ラーニング強化深層ニューラルネットワーク (AL-DNN)
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
まとめ
この研究は,埋立地漏水による地下水の汚染リスクの効率的な評価のために,アクティブ・ラーニング強化のディープ・ニューラル・ネットワーク (AL-DNN) モデルを導入します. AL-DNNモデルは,計算時間を大幅に短縮し,正確性を維持し,環境リスク管理を迅速に可能にします.
科学分野:
- 環境科学
- 水土学
- データサイエンス
背景:
- 埋立地には水漏れによる環境リスクがあり,地下水や公衆衛生に悪影響を及ぼします.
- 漏洩の不確実性の正確な評価は,効果的なリスク管理に不可欠です.
- 不確実性評価の伝統的な方法は,計算的に高価で複雑です.
研究 の 目的:
- 地下水汚染輸送のための計算効率の良い代替モデルを開発する.
- リスク評価の正確性を向上させ,データ要求を最小限に抑える.
- 地下水汚染リスクの迅速かつ信頼性の高い評価のための実用的なツールを提供すること.
主な方法:
- アクティブ・ラーニング強化ディープニューラルネットワーク (AL-DNN) モデルが開発されました.
- AL-DNNモデルは,地下水シミュレーション数値モデル (GSNM) によって生成されたデータセットを使用しています.
- モデルトレーニングのための情報サンプルを選択するために,アクティブ・ラーニング戦略が採用されました.
主要な成果:
- AL-DNNモデルは,かなり少ないサンプル (60サンプル) で従来の方法と同等の精度を達成しました.
- 従来の方法と比較して計算時間が90%短縮された.
- このモデルは,シミュレートされた埋立地漏れシナリオにおける化学酸素需要 (COD) 濃度分布を成功裏に予測した.
結論:
- AL-DNNモデルは,地下水の汚染リスクの評価に計算的に効率的で正確な代替案を提供します.
- この方法は,モニタリングウェル1で最大0.76の超過確率で,汚染リスクの高い領域を効果的に特定します.
- このアプローチは,埋立地での環境リスクの迅速かつ信頼性の高い管理を支援します.
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