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AI-based approaches for wetland mapping and classification: A review of current practices and future perspectives 基于人工智能的湿地制图与分类方法:现状与展望
IF 4.2 Pub Date : 2025-11-05 DOI: 10.1016/j.aiig.2025.100165
Kai Cheng , Cong Zhang , Yaocheng Fan , Hongli Diao , Shibin Xia
Wetlands are critical ecosystems that provide essential ecological, hydrological, and socio-economic services, such as water purification, climate regulation, and biodiversity conservation. However, effective wetland management faces significant challenges, particularly in the analysis and classification of complex wetland environments. Traditional methods of wetland monitoring often suffer from limitations in spatial coverage, temporal resolution, and data processing efficiency. Recent advancements in artificial intelligence (AI), particularly machine learning and deep learning techniques, have been increasingly integrated with remote sensing technologies, offering a powerful solution to these challenges. AI has demonstrated significant potential in automating large-scale remote sensing data analysis, enabling the extraction of detailed spatial information, and enhancing the accuracy and efficiency of wetland mapping and classification. Bibliometric analysis indicates a growing body of research, with notable contributions from China and the United States, though regional disparities and a lack of diverse datasets remain key issues. Despite the success of AI in wetland monitoring, challenges persist in addressing environmental heterogeneity, mixed pixels, and data quality. This review synthesizes the current state of AI-based approaches in wetland mapping and classification, identifies trends and gaps, and outlines future research directions, emphasizing the need for interdisciplinary collaboration and integration of multi-source data to advance AI applications in wetland conservation.
湿地是重要的生态系统,提供必要的生态、水文和社会经济服务,如水净化、气候调节和生物多样性保护。然而,有效的湿地管理面临着重大挑战,特别是在复杂湿地环境的分析和分类方面。传统的湿地监测方法在空间覆盖、时间分辨率和数据处理效率等方面存在局限性。人工智能(AI)的最新进展,特别是机器学习和深度学习技术,已越来越多地与遥感技术相结合,为应对这些挑战提供了有力的解决方案。人工智能在自动化大规模遥感数据分析、提取详细空间信息以及提高湿地制图和分类的准确性和效率方面显示出巨大的潜力。文献计量分析表明,尽管区域差异和缺乏多样化的数据集仍然是关键问题,但中国和美国的研究成果正在不断增加。尽管人工智能在湿地监测方面取得了成功,但在解决环境异质性、混合像素和数据质量方面仍然存在挑战。本文综述了基于人工智能的湿地制图和分类方法的现状,指出了趋势和差距,并概述了未来的研究方向,强调需要跨学科合作和多源数据的整合来推进人工智能在湿地保护中的应用。
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引用次数: 0
Quantifying uncertainty of mineral prediction using a novel Bayesian deep learning framework 使用新的贝叶斯深度学习框架量化矿物预测的不确定性
IF 4.2 Pub Date : 2025-11-04 DOI: 10.1016/j.aiig.2025.100164
Yue Liu
Mineral resource exploration increasingly demands not only accurate prospectivity maps but also reliable measures of confidence to guide high-stakes decisions. In this study, a novel Bayesian deep learning (BDL) framework was introduced, which embeds probabilistic inference within a deep neural network to jointly predict mineralization potential and quantify uncertainty. Two posterior approximation strategies, Metropolis–Hastings (MH) sampling and variational inference (VI), are implemented to estimate model weights as distributions rather than as fixed values, enabling decomposition of predictive uncertainty into aleatoric and epistemic components. When applied to eleven ore-controlling features in the Nanling tungsten polymetallic region (China), both MH-based and VI-based BDL models demonstrate strong classification performance while revealing contrasting spatial patterns and uncertainty patterns. Correlation studies across probability bands confirm that MH sampling captures a broader spread of uncertainty at the cost of greater computational demand, while VI delivers greater efficiency but risks underestimating uncertainty. The results highlight trade-offs between accuracy, interpretability, and computational load, demonstrating that MH-based BDL offers more robust uncertainty assessments, whereas VI-based BDL places greater emphasis on efficiency. By providing spatially explicit probability and uncertainty maps, this framework advances risk-aware mineral exploration, enabling practitioners to target areas of high potential with low uncertainty and to identify regions warranting additional data acquisition.
矿产资源勘探不仅需要精确的勘探地图,而且需要可靠的信心措施来指导高风险的决策。在本研究中,引入了一种新的贝叶斯深度学习(BDL)框架,该框架将概率推理嵌入到深度神经网络中,以联合预测矿化潜力和量化不确定性。采用Metropolis-Hastings (MH)抽样和变分推理(VI)两种后验逼近策略,将模型权重估计为分布而不是固定值,从而将预测不确定性分解为任意分量和认知分量。将其应用于南岭钨多金属区11个控矿特征,结果表明,基于h和vi的BDL模型在揭示空间格局和不确定性格局的同时具有较强的分类能力。跨概率带的相关性研究证实,MH采样以更大的计算需求为代价,捕获了更广泛的不确定性,而VI提供了更高的效率,但存在低估不确定性的风险。结果强调了准确性、可解释性和计算负载之间的权衡,表明基于mh的BDL提供了更强大的不确定性评估,而基于vi的BDL更强调效率。通过提供空间上明确的概率和不确定性地图,该框架促进了风险意识的矿产勘探,使从业者能够以低不确定性瞄准高潜力区域,并确定需要额外数据采集的区域。
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引用次数: 0
Undrained uplift capacity prediction of open-caisson anchors in anisotropic clays using XGBoost integrated with mutation-based genetic algorithms 基于XGBoost和基于突变的遗传算法的各向异性粘土中开沉箱锚杆不排水上扬能力预测
IF 4.2 Pub Date : 2025-10-26 DOI: 10.1016/j.aiig.2025.100162
Rungroad Suppakul , Wittaya Jitchaijaroen , Suraparb Keawsawasvong , Sutasinee Intui , Shinya Inazumi
This study evaluates the undrained uplift capacity of open-caisson anchors embedded in anisotropic clay using Finite Element Limit Analysis (FELA) and a hybrid machine learning framework. The FELA simulations investigate the influence of the radius ratio (R/B), anisotropic ratio (re), interface roughness factor (α), and inclination angle (β). Specifically, the results reveal that increasing β significantly enhances Nc, especially as soil behavior approaches isotropy. Higher α improves resistance at steeper inclinations by mobilizing greater interface shear. Nc increases with re, reflecting enhanced strength under isotropic conditions. To enhance predictive accuracy and generalization, a hybrid machine learning model was developed by integrating Extreme Gradient Boosting (XGBoost) with Genetic Algorithm (GA) and Mutation-Based Genetic Algorithm (MGA) for hyperparameter tuning. Among the models, MGA-XGBoost outperformed GA-XGBoost, achieving higher predictive accuracy (R2 = 0.996 training, 0.993 testing). Furthermore, SHAP analysis consistently identified anisotropic ratio (re) as the most influential factor in predicting uplift capacity, followed by interface roughness factor (α), inclination angle (β), and radius ratio (R/B). The proposed framework serves as a scalable decision-support tool adaptable to various soil types and foundation geometries, offering a more efficient and data-driven approach to uplift-resistant design in anisotropic cohesive soils.
本研究使用有限元极限分析(FELA)和混合机器学习框架评估了嵌入各向异性粘土中的开放式沉箱锚杆的不排水上拔能力。通过FELA模拟研究了半径比(R/B)、各向异性比(re)、界面粗糙度因子(α)和倾角(β)的影响。具体而言,结果表明,增加β显著提高Nc,特别是当土壤行为接近各向同性时。较高的α通过调动更大的界面剪切来提高陡坡阻力。Nc随re的增加而增加,反映了各向同性条件下强度的增强。为了提高预测精度和泛化能力,将极端梯度增强(XGBoost)与遗传算法(GA)和基于突变的遗传算法(MGA)相结合,建立了一种混合机器学习模型。其中,MGA-XGBoost优于GA-XGBoost,预测准确率更高(训练R2 = 0.996,检验R2 = 0.993)。此外,SHAP分析一致认为各向异性比(re)是预测抬升能力的最重要因素,其次是界面粗糙度系数(α)、倾角(β)和半径比(R/B)。所提出的框架可作为可扩展的决策支持工具,适用于各种土壤类型和基础几何形状,为各向异性粘性土壤的抗隆起设计提供更有效和数据驱动的方法。
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引用次数: 0
Deciphering influential features in the seismic catalog for large earthquake occurrence from a machine learning perspective 从机器学习的角度解读大地震发生的地震目录中的影响特征
IF 4.2 Pub Date : 2025-10-26 DOI: 10.1016/j.aiig.2025.100161
Jinsu Jang , Byung-Dal So , David A. Yuen , Sung-Joon Chang
The spatiotemporal distribution and magnitude of seismicity collected over decades are crucial for understanding the stress interactions underlying large earthquakes. In this study, machine learning (ML) explainers identify and rank the features that distinguish Large Earthquake Occurrence (LEO) from non-LEO spatiotemporal windows. Seventy-eight statistics related to time, latitude, longitude, depth, and magnitude were extracted from the earthquake catalog (Global Centroid Moment Tensor) to produce 202,706 spatiotemporally discretized windows. ML explainers trained on these windows revealed the maximum magnitude (Mmax) as the most influential feature. Classification performance improved when the maximum inter-event time, the average inter-event time, and the minimum ratio of focal depth to magnitude were jointly trained with Mmax. The top five features showed weak-to-moderate correlations, providing complementary information to the ML explainers. Our explainable ML framework can be extended to different earthquake catalogs, including those with focal mechanisms and small-magnitude events.
几十年来收集的地震活动的时空分布和震级对于理解大地震背后的应力相互作用至关重要。在本研究中,机器学习(ML)解释器识别并排序区分大地震发生(LEO)和非LEO时空窗口的特征。从地震目录(全球质心矩张量)中提取78个与时间、纬度、经度、深度和震级相关的统计量,产生202,706个时空离散窗口。在这些窗口上训练的ML解释器显示最大幅度(Mmax)是最具影响力的特征。当最大事件间隔时间、平均事件间隔时间和最小震级比与Mmax联合训练时,分类性能得到提高。前五个特征显示出弱到中等的相关性,为ML解释器提供了补充信息。我们的可解释的ML框架可以扩展到不同的地震目录,包括那些具有震源机制和小震级事件。
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引用次数: 0
Unsupervised hierarchical sequence stratigraphy framework of carbonate successions 碳酸盐岩序列的无监督层序地层学格架
IF 4.2 Pub Date : 2025-10-10 DOI: 10.1016/j.aiig.2025.100160
Márcio Vinicius Santana Dantas , Kaio Henrique Masse Vieira , Thomás Jung Spier , José Arthur Oliveira Santos , Alan Cabral Trindade Prado , Danilo Vomlel , Mariana Leite , Felipe Alves Farias , Daniel Galvão Carnier Fragoso , Humberto Reis , Gabriel Coutinho , Douglas G. Macharet
Performing the high-resolution stratigraphic analysis may be challenging and time-consuming if one has to work with large datasets. Moreover, sedimentary records have signals of different frequencies and intrinsic noise, resulting in a complex signature that is difficult to identify only through eyes-based analysis. This work proposes identifying transgressive-regressive (T-R) sequences from carbonate facies successions of three South American basins: (i) São Francisco Basin - Brazil, (ii) Santos Basin - Brazil, and (iii) Salta Basin - Argentina. We applied a hidden Markov model in an unsupervised approach followed by a Score-Based Recommender System that automatically finds medium or low-frequency sedimentary cycles from high-frequency ones. Our method is applied to facies identified using Fullbore Formation Microimager (FMI) logs, outcrop description, and composite logs from carbonate intervals. The automatic recommendation results showed better long-distance correlations between medium- to low-frequency sedimentary cycles, whereas the hidden Markov model method successfully identified high-resolution (high-frequency) transgressive and regressive systems tracts from the given facies successions. Our workflow offers advances in the automated analyses and construction of lower- to higher-rank stratigraphic framework and short to long-distance stratigraphic correlation, allowing for large-scale automated processing of the basin dataset. Our approach in this work fits the unsupervised learning framework, as we require no previous input of stratigraphical analysis in the basin. The results provide solutions for prospecting any sediment-hosted mineral resource, especially for the oil and gas industry, offering support for subsurface geological characterization, whether at the exploration scale or for reservoir zoning during production development.
如果必须处理大型数据集,那么进行高分辨率地层分析可能是具有挑战性和耗时的。此外,沉积记录具有不同频率的信号和固有噪声,这导致了复杂的特征,仅通过肉眼分析很难识别。本文提出了从三个南美盆地(1)巴西s o Francisco盆地、(2)巴西Santos盆地和(3)阿根廷Salta盆地的碳酸盐岩相序列中识别海侵-退(T-R)层序的方法。我们在无监督的方法中应用了隐马尔可夫模型,然后是基于分数的推荐系统,该系统自动从高频沉积旋回中发现中低频沉积旋回。我们的方法应用于通过全孔地层微成像仪(FMI)测井、露头描述和碳酸盐岩层段的复合测井来识别相。自动推荐结果显示中低频沉积旋回之间具有较好的长距离相关性,而隐马尔可夫模型方法则成功地从给定的相序列中识别出高分辨率(高频)海侵和海退体系域。我们的工作流程在低阶到高阶地层格架的自动化分析和构建以及短距离到长距离地层对比方面取得了进展,从而允许对盆地数据集进行大规模的自动化处理。我们在这项工作中的方法适合无监督学习框架,因为我们不需要事先输入盆地的地层分析。研究结果为任何含沉积物矿产资源的勘探提供了解决方案,特别是对油气行业来说,无论是在勘探规模上还是在生产开发过程中进行储层划分,都为地下地质特征提供了支持。
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引用次数: 0
Advancements in Sinkhole Remediation: Field data-driven Sinkhole grout volume prediction model via machine learning-based regression Analysis 天坑修复的进展:基于机器学习的回归分析的现场数据驱动的天坑灌浆量预测模型
IF 4.2 Pub Date : 2025-10-10 DOI: 10.1016/j.aiig.2025.100159
Bubryur Kim , Yuvaraj Natarajan , K.R. Sri Preethaa , V. Danushkumar , Ryan Shamet , Jiannan Chen , Rui Xie , Timothy Copeland , Boo Hyun Nam , Jinwoo An
Sinkhole formation poses a significant geohazard in karst regions, where unpredictable subsurface erosion often necessitates costly grouting for stabilization. Accurate estimation of grout volume remains a persistent challenge due to spatial variability, site-specific conditions, and the limitations of traditional empirical methods. This study introduces a novel machine learning-based regression model for grout volume prediction that integrates cone penetration test (CPT)-derived Sinkhole Resistance Ratio (SRR) values, spatial correlations between CPT and grouting points (GPs), and field-recorded grout volumes from six sinkhole sites in Florida. Three data transformation methods, the Proximal Allocation Method (PAM), the Equitable Distribution Method (EDM), and the Threshold-based Equitable Distribution Method (TEDM), were applied to distribute grout influence across CPTs, with TEDM demonstrating superior predictive performance. Synthetic data augmentation using spline methodology further improved model robustness. A high-degree polynomial regression model, optimized with ridge regularization, achieved high accuracy (R2 = 0.95; PEV = 0.94) and significantly outperformed existing linear and logarithmic models. Results confirm that lower SRR values correlate with higher grout demand, and the proposed model reliably captures these nonlinear relationships. This research advances sinkhole remediation practice by providing a data-driven, accurate, and generalizable framework for grout volume estimation, enabling more efficient resource allocation and improved project outcomes.
在喀斯特地区,天坑的形成造成了严重的地质灾害,在那里,不可预测的地下侵蚀往往需要昂贵的灌浆来稳定。由于空间变异性、场地特定条件和传统经验方法的局限性,准确估计浆液体积仍然是一个持续的挑战。该研究引入了一种新的基于机器学习的浆液体积预测回归模型,该模型集成了锥贯入试验(CPT)得出的天坑阻力比(SRR)值、CPT与注浆点(GPs)之间的空间相关性以及佛罗里达州六个天坑现场记录的浆液体积。采用近端分配法(PAM)、公平分配法(EDM)和基于阈值的公平分配法(TEDM)三种数据转换方法对不同cpt的灌浆影响进行了分布,TEDM显示出较好的预测性能。采用样条法对合成数据进行增强,进一步提高了模型的鲁棒性。采用脊正则化优化的高次多项式回归模型获得了较高的精度(R2 = 0.95; PEV = 0.94),显著优于现有的线性和对数模型。结果证实,较低的SRR值与较高的浆液需求相关,并且所提出的模型可靠地捕获了这些非线性关系。本研究通过提供一个数据驱动的、准确的、可推广的灌浆量估算框架来推进天坑修复实践,从而实现更有效的资源分配和改善项目成果。
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引用次数: 0
Development of a reliable rock slope stability model utilizing field and analytical data – An integration of FE-ML approaches 利用现场和分析数据建立可靠的岩质边坡稳定性模型-有限元-机器学习方法的集成
IF 4.2 Pub Date : 2025-09-29 DOI: 10.1016/j.aiig.2025.100158
Virat Singh Chauhan , Md. Rehan Sadique , Mohd. Masroor Alam , Mohd. Ahmadullah Farooqi
Slope instability in hilly regions is a highly complex phenomenon, with triggering factors ranging from natural events to anthropogenic activities. Such failures hit disastrous losses both in terms of material as well as life. It is necessary to comprehend the mechanism of these failures to mitigate such events and also to predict their vulnerability for better preparedness. Significant advancements have already been done in the area of slope stability analysis, and scores of valued tools and techniques have been developed, such as limit equilibrium methods, finite element and finite difference methods, stochastic methods, and several of their combinations. In this study, an attempt has been made to capitalize on machine learning tools to predict the factor of safety of rock slope stability in hilly regions. Three road-cut slopes have been considered and their stability is determined using both finite element (FE) and machine learning (ML) techniques. The idea to intertwine these approaches is to supplement each other and enhance the reliability of the results. The geotechnical data was acquired through field investigation trips to the adopted mountainous sites. Since the slopes at the site are rocky, in the FE model, the Generalized Hoek Brown (GHB) material model with shear strength reduction technique have been used. In the implementation of ML models, Random Forest (RF) and Gradient Boosting Machine (GBM) models have been used. For the training of the ML model, ample published data has been utilized, while for testing the ML model, the data from the current slope site is used. The analysis in ML model is carried out in three stages: a) without Hyperparameter tuning, b) with Hyperparameter tuning using GridSearchCV, and c) Pipeline incorporating Recursive Feature Elimination (RFE). Performance metrics, including Mean Absolute Error (MAE), Mean Squared Error (MSE), and R2 score, were evaluated to assess the accuracy of the model. A slight discrepancy within a range of 10 percent has been found, which is rather expected due to factors such as grid refinement and, data volume and variability. Overall, the proposed ML model demonstrates excellent compatibility with the FE model results. This study is an attempt to pick relevant ML techniques to develop a purpose-built framework that has the potential to validate the rock slope stability obtained using the traditional methods.
丘陵区边坡失稳是一个高度复杂的现象,其触发因素既有自然事件,也有人为活动。这样的失败在物质和生命方面都造成了灾难性的损失。有必要了解这些失败的机制,以减轻此类事件,并预测其脆弱性,以便更好地做好准备。在边坡稳定性分析领域已经取得了重大进展,并且开发了许多有价值的工具和技术,例如极限平衡方法,有限元和有限差分方法,随机方法以及它们的几种组合。在本研究中,尝试利用机器学习工具来预测丘陵地区岩质边坡稳定的安全系数。考虑了三个路堑边坡,并使用有限元(FE)和机器学习(ML)技术确定了它们的稳定性。将这些方法交织在一起是为了相互补充,提高结果的可靠性。岩土工程数据是通过对所采用的山区地点进行实地调查获得的。由于现场边坡为岩质边坡,在有限元模型中采用了具有抗剪强度折减技术的广义Hoek Brown (GHB)材料模型。在机器学习模型的实现中,使用了随机森林(RF)和梯度增强机(GBM)模型。对于ML模型的训练,我们使用了大量已发表的数据,而对于ML模型的测试,我们使用了来自当前边坡的数据。ML模型的分析分三个阶段进行:a)无超参数调优,b)使用GridSearchCV进行超参数调优,c)结合递归特征消除(RFE)的管道。评估性能指标,包括平均绝对误差(MAE)、均方误差(MSE)和R2评分,以评估模型的准确性。在10%的范围内发现了轻微的差异,由于网格细化、数据量和可变性等因素,这是相当预期的。总体而言,所提出的ML模型与FE模型结果具有良好的兼容性。本研究试图选择相关的ML技术来开发一个专用框架,该框架有可能验证使用传统方法获得的岩质边坡稳定性。
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引用次数: 0
Identification of major minerals in igneous rock microscopic images from thin sections through deep neural network analysis 利用深度神经网络分析方法识别火成岩薄片显微图像中的主要矿物
IF 4.2 Pub Date : 2025-09-24 DOI: 10.1016/j.aiig.2025.100157
Kouadio Krah , Sié Ouattara , Gbele Ouattara , Marc Euphrem Allialy , Alain Clement
Several socio-environmental needs (medicine, industry, engineering, orogenesis, genesis, etc.) require minerals to be more precisly defined and characterised. The identification of minerals plays a crucial role for researchers and is becoming an essential aspect of geological analysis. However, traditional methods relied heavily on expert knowledge and specialised equipment, making them labour-intensive, costly and time-consuming. This dependence is often labour-intensive, not to mention costly and time-consuming. To address this issue, some researchers have opted for machine learning algorithms to quickly identify a single mineral in a microscopic image of rocks. However this approch does not correspond to patterns of mineral distribution, where minerals are typically found in associations. These associations make it difficult to accurately identify minerals using conventional machine learning algorithms. This paper introduces a deep neural learning model based on multi-label classification, utilizing the problem adaptation method to analyse microscopic images of rock thin sections. The model is based on the ResNet50 architecture, which is designed to analyse minerals and generates the probability of a mineral presence in an image. This method provides a solution to the dependence between associated minerals. Experiments on many test images showed a model confidence, achieving average precision, recall and F1_score 97.15 %, 96.25 % and 96.69 %, respectively. Visualisation of the class activation mapping using the Grad-CAM algorithm indicates that our model is likely to locate the identified minerals effectively. In this way, the importance of each pixel with the class of interest can be assessed using heat maps. The recorded results, in terms of both performance and pixel_level evaluation, demonstrate the promising potential of the model used. It can therefore be considered for multi-labels image classification, particulary for images representing rock minerals. This approach serves as a valuable support tool for geological studies.
一些社会环境需求(医药、工业、工程、造山、成因等)要求对矿物进行更精确的定义和表征。矿物的鉴定对研究人员起着至关重要的作用,并正在成为地质分析的一个重要方面。然而,传统的方法严重依赖于专业知识和专用设备,这使得它们劳动密集,成本高昂且耗时。这种依赖往往是劳动密集型的,更不用说昂贵和耗时了。为了解决这个问题,一些研究人员选择了机器学习算法来快速识别岩石微观图像中的单一矿物。然而,这种方法并不符合矿物分布的模式,因为矿物通常是在组合中发现的。这些关联使得使用传统的机器学习算法难以准确识别矿物。介绍了一种基于多标签分类的深度神经学习模型,利用问题自适应方法对岩石薄片显微图像进行分析。该模型基于ResNet50架构,该架构旨在分析矿物质并生成图像中矿物质存在的概率。这种方法为伴生矿物之间的依赖性提供了一种解决方案。在多幅测试图像上的实验表明,模型置信度较好,平均准确率、召回率和F1_score分别达到97.15%、96.25%和96.69%。使用Grad-CAM算法的类激活映射可视化表明,我们的模型可能有效地定位已识别的矿物。通过这种方式,可以使用热图评估每个感兴趣类别像素的重要性。从性能和pixel_level评估两方面来看,记录的结果显示了所使用模型的良好潜力。因此,可以考虑对多标签图像进行分类,特别是对代表岩石矿物的图像。这种方法为地质研究提供了宝贵的支持工具。
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引用次数: 0
Comparison of the performance of gradient boost, linear regression, decision tree, and voting algorithms to separate geochemical anomalies areas in the fractal environment 梯度增强、线性回归、决策树和投票算法在分形环境下分离地球化学异常区的性能比较
IF 4.2 Pub Date : 2025-09-24 DOI: 10.1016/j.aiig.2025.100156
Mirmahdi Seyedrahimi-Niaraq , Hossein Mahdiyanfar , Mohammad hossein Olyaee
In this investigation, the Gradient Boosting (GB), Linear Regression (LR), Decision Tree (DT), and Voting algorithms were applied to predict the distribution pattern of Au geochemical data. Trace and indicator elements, including Mo, Cu, Pb, Zn, Ag, Ni, Co, Mn, Fe, and As, were used with these machine learning algorithms (MLAs) to predict Au concentration values in the Doostbigloo porphyry Cu-Au-Mo mineralization area. The performance of the models was evaluated using the Mean Absolute Percentage Error (MAPE) and Root Mean Square Error (RMSE) metrics. The proposed ensemble Voting algorithm outperformed the other models, yielding more accurate predictions according to both metrics. The predicted data from the GB, LR, DT, and Voting MLAs were modeled using the Concentration-Area fractal method, and Au geochemical anomalies were mapped. To compare and validate the results, factors such as the location of the mineral deposits, their surface extent, and mineralization trend were considered. The results indicate that integrating hybrid MLAs with fractal modeling significantly improves geochemical prospectivity mapping. Among the four models, three (DT, GB, Voting) accurately identified both mineral deposits. The LR model, however, only identified Deposit I (central), and its mineralization trend diverged from the field data. The GB and Voting models produced similar results, with their final maps derived from fractal modeling showing the same anomalous areas. The anomaly boundaries identified by these two models are consistent with the two known reserves in the region. The results and plots related to prediction indicators and error rates for these two models also show high similarity, with lower error rates than the other models. Notably, the Voting model demonstrated superior performance in accurately delineating mineral deposit locations and identifying realistic mineralization trends while minimizing false anomalies.
采用梯度增强(GB)、线性回归(LR)、决策树(DT)和投票(Voting)算法预测Au地球化学数据的分布模式。利用Mo、Cu、Pb、Zn、Ag、Ni、Co、Mn、Fe、As等微量元素和指示元素,结合机器学习算法(MLAs)预测了Doostbigloo斑岩Cu-Au-Mo矿化区Au的富集值。使用平均绝对百分比误差(MAPE)和均方根误差(RMSE)指标评估模型的性能。所提出的集成投票算法优于其他模型,根据两个指标产生更准确的预测。采用浓度-面积分形方法对GB、LR、DT和Voting MLAs预测数据进行建模,绘制了Au地球化学异常图。为了比较和验证结果,考虑了矿床的位置、地表范围和矿化趋势等因素。结果表明,将混合MLAs与分形建模相结合,显著提高了地球化学找矿能力。四种模型中,DT、GB、Voting三种模型均能准确识别两个矿床。然而,LR模型只识别了1号矿床(中部),其成矿趋势与现场数据不符。GB和Voting模型产生了类似的结果,它们的最终地图源自分形模型,显示了相同的异常区域。这两种模型识别的异常边界与该地区已知的两个储量一致。两种模型的预测指标和错误率相关的结果和图也显示出较高的相似性,错误率低于其他模型。值得注意的是,Voting模型在准确描绘矿床位置和识别实际矿化趋势方面表现出色,同时最大限度地减少了虚假异常。
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引用次数: 0
Machine-learning seismic damage assessment model for building structures 基于机器学习的建筑结构震害评估模型
IF 4.2 Pub Date : 2025-09-13 DOI: 10.1016/j.aiig.2025.100155
Fatma Zohra Belhadj , Ahmed Fouad Belhadj , Mohamed Chabaat
Buildings in seismic-prone regions are highly vulnerable to structural damage, necessitating meticulous Seismic Damage Assessment (SDA) for accurate design and mitigation strategies. The intricate nature of Seismic Damage Assessment (SDA) poses challenges, particularly when employing Finite Element Analysis (FE) for individual structures, as simulation techniques are time-intensive due to the inherent complexity of the models. Computational methods combining Soil-Structure Interaction (SSI) for earthquake damage assessment further compound the challenge, requiring substantial computational efforts to construct a comprehensive database for area-based prediction models. This study introduces such challenges via a novel Artificial Neural Network (ANN) approaches-based model as an alternative for prompt building Seismic Damage Assessment evaluation. The proposed ANN model leverages three key inputs—seismic, building, and soil parameters—incorporating a multi-step analysis process to generate seismic responses with soil-structure interaction. The findings underscore the remarkable accuracy of the SDA-Net model, positioning it as an effective predictive tool and rapid decision support system for structures affected by SSI impacts. This innovative approach not only serves as a proactive pre-disaster management tool for assessing potential damage but also emerges as a practical asset for ensuring the safety and durability of structures in the face of natural disasters. The study's contribution lies in its potential application as a valuable tool in structural engineering, aligning with the objectives and scope of the Research Journal of The Institution of Structural Engineers.
地震易发地区的建筑物极易受到结构破坏,因此需要进行细致的地震损害评估(SDA),以实现准确的设计和减灾策略。地震损伤评估(SDA)的复杂性带来了挑战,特别是当对单个结构使用有限元分析(FE)时,由于模型固有的复杂性,模拟技术需要耗费大量时间。结合土-结构相互作用(SSI)进行震害评估的计算方法进一步加剧了这一挑战,需要大量的计算工作来构建基于区域的预测模型的综合数据库。本研究通过一种新颖的基于人工神经网络(ANN)方法的模型来引入这些挑战,作为快速评估建筑物震害的替代方法。提出的人工神经网络模型利用三个关键输入-地震,建筑和土壤参数-结合多步骤分析过程来生成具有土壤-结构相互作用的地震响应。研究结果强调了SDA-Net模型的显著准确性,将其定位为受SSI影响的结构的有效预测工具和快速决策支持系统。这种创新的方法不仅可以作为评估潜在损害的一种主动的灾前管理工具,而且还可以作为确保建筑物在面对自然灾害时的安全性和耐久性的实用资产。该研究的贡献在于其作为结构工程中有价值的工具的潜在应用,与结构工程师学会研究期刊的目标和范围一致。
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Artificial Intelligence in Geosciences
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