artificial neural network

人工神经网络
  • 文章类型: Journal Article
    通过Fenton氧化对总石油烃(TPH)污染的土壤进行原位修复是一种有前途的方法。然而,在复杂的地质条件下确定Fenton反应中H2O2和Fe源的适当注入量对于原位TPH土壤修复仍然是一个艰巨的挑战。在这里,我们介绍了一种使用软计算模型的实用和新颖的方法,多层感知人工神经网络(MPLNN),用于预测TPH去除性能。在这项研究中,我们使用Fenton氧化进行了48组TPH去除实验,以确定各种不同地面条件下的TPH去除性能,并产生336个数据点。因此,在铁注入质量和土壤中自然存在的铁矿物中获得了负的皮尔逊相关系数,表明过量的Fe可以显著延缓Fenton反应中TPH的去除性能。此外,使用正切S形作为传递函数的缩放共轭梯度反向传播(SCG)进行6-6-1训练的MPLNN模型显示出很高的TPH去除预测精度,相关性确定为0.974,均方误差值为0.0259。优化的MPLNN模型通过Fenton氧化预测实际TPH污染土壤中的TPH去除性能的误差小于20%。因此,所提出的MPLNN可用于提高Fenton氧化对TPH原位土壤修复的去除性能。
    In-situ remediation of total petroleum hydrocarbon (TPH) contaminated soils via Fenton oxidation is a promising approach. However, determining the proper injection amount of H2O2 and Fe source over the Fenton reaction in the complex geological conditions for in-situ TPH soil remediation remains a daunting challenge. Herein, we introduced a practical and novel approach using soft computational models, a multilayer perception artificial neural network (MPLNN), for predicting the TPH removal performance. In this study, we conducted 48 sets of TPH removal experiments using Fenton oxidation to determine the TPH removal performance of a wide range of different ground conditions and generated 336 data points. As a result, a negative Pearson correlation coefficient was obtained in the Fe injection mass and the natural presence of Fe mineral in the soil, indicating that the excess of Fe could significantly retarded the TPH removal performance in the Fenton reaction. In addition, the MPLNN model with 6-6-1 training using Scaled conjugate gradient backpropagation (SCG) with tangent sigmoid as the transfer function demonstrated a high accuracy for TPH removal prediction with the correlation determination of 0.974 and mean square error value of 0.0259. The optimized MPLNN model achieved less than 20% error for predicting TPH removal performance in actual TPH-contaminated soil via Fenton oxidation. Hence, the proposed MPLNN can be useful in improving the Fenton oxidation of TPH removal performance in-situ soil remediation.
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  • 文章类型: Journal Article
    电化学免疫传感器,超越传统诊断,对癌症生物标志物检测具有显著的潜力。然而,实现信号灵敏度和操作稳定性之间的微妙平衡,特别是在异质结构界面,对于实际的免疫传感器至关重要。在这里,多孔碳(PC)与Ti3C2Tx-MXene(MX)和金纳米颗粒(AuNPs)的整合构建了用于检测细胞外基质蛋白1(ECM1)的通用免疫传感平台,与乳腺癌相关的生物标志物。PC的加入提供了强大的结构支持,增强电解扩散与扩大的表面积,同时协同促进电荷转移与Ti3C2Tx。使用1.0mgPC优化的生物传感器对表面结合的硫氨酸(th)氧化还原探针具有强大的电化学氧化还原响应,利用基于抑制的策略进行ECM1检测。在PC整合的Ti3C2Tx-AuNP平台(MX-Au-C-1)上,强大的抗体-抗原相互作用能够在0.1-7.5nM内进行强大的ECM1检测,低检测限(LOD)为0.012nM。构建的生物传感器显示出改进的操作稳定性,在1小时内保持98.6%的电流,超越MXene集成(MX-Au)和原始AuNP(63.2%和44.3%,分别)电极。此外,人工神经网络(ANN)模型的成功适应所生成的DPV数据的预测分析进一步验证了生物传感器的准确性,有望在AI驱动的远程健康监测中应用。
    Electrochemical immunosensors, surpassing conventional diagnostics, exhibit significant potential for cancer biomarker detection. However, achieving a delicate balance between signal sensitivity and operational stability, especially at the heterostructure interface, is crucial for practical immunosensors. Herein, porous carbon (PC) integration with Ti3C2Tx-MXene (MX) and gold nanoparticles (Au NPs) constructs a versatile immunosensing platform for detecting extracellular matrix protein-1 (ECM1), a breast cancer-associated biomarker. The inclusion of PC provided robust structural support, enhancing electrolytic diffusion with an expansive surface area while synergistically facilitating charge transfer with Ti3C2Tx. The biosensor optimized with 1.0 mg PC demonstrates a robust electrochemical redox response to the surface-bound thionine (th) redox probe, utilizing an inhibition-based strategy for ECM1 detection. The robust antibody-antigen interactions across the PC-integrated Ti3C2Tx-Au NPs platform (MX-Au-C-1) enabled robust ECM1 detection within 0.1-7.5 nM, with a low limit of detection (LOD) of 0.012 nM. The constructed biosensor shows improved operational stability with a 98.6 % current retention over 1 h, surpassing MXene-integrated (MX-Au) and pristine Au NPs (63.2 % and 44.3 %, respectively) electrodes. Moreover, the successful adaptation of the artificial neural network (ANN) model for predictive analysis of the generated DPV data further validates the accuracy of the biosensor, promising its future application in AI-powered remote health monitoring.
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  • 文章类型: Journal Article
    新的证据表明,肠道微生物菌群失调与精神分裂症(SZ)中抗精神病药引起的体重增加有关。然而,构成“生性”微生物概况的确切分类组成和功能仍然难以捉摸。我们的回顾性调查确定了两组按BMI分隔的SZ人群,1/3的患者在慢性抗精神病药物治疗后出现超重/肥胖。基于多组学分析,我们观察到SZ超重/肥胖患者的肠道菌群改变,以几种有益细菌属减少为特征,包括拟杆菌,副杆菌属,Akkermansia,和梭菌。这种微生物菌群失调伴随着能量消耗和营养代谢的中断,代谢指数恶化,并降低了有益代谢产物的水平,例如吲哚-3-羧酸和丙酸。此外,在一个月和一年的随访中,利用首发药物初治精神分裂症(FSZ)患者的数据,人工神经网络和基于随机森林分类器的预测模型都证明了微生物谱预测抗精神病药物引起的体重增加的强大能力.重要的是,具有较高相对丰度的双细菌的FSZ患者不易受到抗精神病药物引起的体重增加的影响。因此,肠道微生物群可以作为一种非侵入性的方法来预测抗精神病药物引起的体重增加,指导临床抗精神病药的使用,并开发SZ体重管理的新治疗策略。
    Emerging evidence indicates that gut microbial dysbiosis is associated with the development of antipsychotic-induced weight gain in schizophrenia (SZ). However, the exact taxonomic composition and functionality that constitute the \"obesogenic\" microbial profile remain elusive. Our retrospective survey identified two groups of the SZ population separated by BMI, with 1/3 of patients developing overweight/obesity after chronic antipsychotic treatment. Based on multi-omics analysis, we observed altered gut microbiota in SZ patients with overweight/obesity, characterized by a reduction in several beneficial bacteria genera, including Bacteroides, Parabacteroides, Akkermansia, and Clostridium. This microbial dysbiosis was accompanied by disrupted energy expenditure and nutritional metabolism, worsened metabolic indices, and reduced levels of beneficial metabolites, e.g. indole-3-carboxylic acid and propionic acid. Moreover, leveraging data from first-episode drug-naïve schizophrenia (FSZ) patients at one-month and one-year follow-up, both artificial neural network and random forest classifier-based prediction models demonstrated a strong ability of microbial profiles to predict antipsychotic-induced weight gain. Importantly, FSZ patients with higher relative abundance of Parabacteria distasonis were less susceptible to antipsychotic-induced weight gain. Thus, gut microbiota could serve as a noninvasive approach to predict antipsychotic-induced weight gain, guiding clinical antipsychotics administration and developing novel therapeutic strategies for weight management in SZ.
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  • 文章类型: Journal Article
    纺织材料的染色过程本来就很复杂,受到无数因素的影响,包括染料浓度,染色时间,pH值,温度,染料的类型,纤维成分,机械搅拌,盐浓度,媒染剂,固定剂,水质,染色方法,和预处理过程。在染色过程中实现最佳设置的复杂性提出了重大挑战。作为回应,这项研究引入了一种新的算法方法,集成了响应面方法(RSM),人工神经网络(ANN),和遗传算法(GA)技术,用于精确微调浓度,时间,pH值,和温度。主要重点是量化颜色强度,表示为K/S,作为聚酰胺6和羊毛织物染色过程中的响应变量,利用梅树叶子作为可持续的染料来源。结果表明,ANN(R2〜1)的性能明显优于RSM(R2>0.92)。优化结果,采用ANN-GA集成,表示浓度为100重量%。%,时间86.06分钟,8.28的pH水平和100°C的温度产生聚酰胺6织物的10.21的K/S值。同样,浓度为55.85wt。%,时间120分钟,5的pH水平和100°C的温度产生的羊毛织物的K/S值为7.65。这种提出的方法不仅为可持续的纺织品染色铺平了道路,而且还促进了纺织品材料多种染色工艺的优化。
    The dyeing process of textile materials is inherently intricate, influenced by a myriad of factors, including dye concentration, dyeing time, pH level, temperature, type of dye, fiber composition, mechanical agitation, salt concentration, mordants, fixatives, water quality, dyeing method, and pre-treatment processes. The intricacy of achieving optimal settings during dyeing poses a significant challenge. In response, this study introduces a novel algorithmic approach that integrates response surface methodology (RSM), artificial neural network (ANN), and genetic algorithm (GA) techniques for the precise fine-tuning of concentration, time, pH, and temperature. The primary focus is on quantifying color strength, represented as K/S, as the response variable in the dyeing process of polyamide 6 and woolen fabric, utilizing plum-tree leaves as a sustainable dye source. Results indicate that ANN (R2 ~ 1) performs much better than RSM (R2 > 0.92). The optimization results, employing ANN-GA integration, indicate that a concentration of 100 wt.%, time of 86.06 min, pH level of 8.28, and a temperature of 100 °C yield a K/S value of 10.21 for polyamide 6 fabric. Similarly, a concentration of 55.85 wt.%, time of 120 min, pH level of 5, and temperature of 100 °C yield a K/S value of 7.65 for woolen fabric. This proposed methodology not only paves the way for sustainable textile dyeing but also facilitates the optimization of diverse dyeing processes for textile materials.
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  • 文章类型: Journal Article
    圆锥角膜是一种进行性眼病,其中通常圆形的角膜变薄并向外凸出成圆锥形。这种不规则的形状导致光在进入眼睛时在多个方向上散射,导致扭曲的视觉,增加对光的敏感性和眼镜或隐形眼镜处方的频繁变化。早期检测圆锥角膜不仅困难,而且具有挑战性。
    该研究提出了一种名为KeratoEL的基于集成的机器学习(ML)技术,用于在早期阶段检测圆锥角膜。所提出的KeratoEL模型结合了基本的机器学习算法,即支持向量机(SVM),决策树(DT),随机森林(RF)和人工神经网络(ANN)。在使用ML模型进行圆锥角膜检测之前,首先,通过消除一些对预测确切类别没有任何重要价值的特征,对数据集进行手动预处理。此外,输出特征被标记为三个不同的类和额外的树分类器被用来找出重要的特征。然后,这些特征按降序排序,并将前45、30和15个特征作为输出的输入数据集。最后,使用输入数据集测试不同的机器学习模型,并测量性能指标。
    所提出的模型获得了98.0%,前45、30和15个特征的准确率分别为98.9%和99.8%。总体实验结果表明,所提出的集成模型优于现有的机器学习模型。
    所提出的KeratoEL模型通过结合SVM在早期阶段有效地检测圆锥角膜,DT,射频,和ANN算法,展示优于现有模型的性能。这些结果强调了KeratoEL集成方法在增强圆锥角膜的早期检测和治疗中的潜力。
    UNASSIGNED: Keratoconus is a progressive eye condition in which the normally round cornea thins and bulges outwards into a cone shape. This irregular shape causes light to scatter in multiple directions as it enters the eye, leading to distorted vision, increased sensitivity to light and frequent changes in the prescription of glasses or contact lenses. Detecting keratoconus at an early stage is not only difficult but also challenging.
    UNASSIGNED: The study has proposed an ensemble-based machine learning (ML) technique named KeratoEL to detect keratoconus at an early stage. The proposed KeratoEL model combines the basic machine learning algorithms, namely support vector machine (SVM), decision tree (DT), random forest (RF) and artificial neural network (ANN). Before employing the ML model for keratoconus detection, the data set is first preprocessed manually by eliminating some features that don\'t contribute any significant value to predict the exact class. Moreover, the output features are labelled into three different classes and Extra Trees Classifier is used to find out the important features. Then, the features are sorted in descending order and top 45, 30, and 15 features are taken as input datasets against the output. Finally, different machine learning models are tested using the input datasets and performance metrics are measured.
    UNASSIGNED: The proposed model obtains 98.0%, 98.9% and 99.8% accuracy for top 45, 30, and 15 number of features respectively. Overall experimental results show that the proposed ensemble model outperforms the existing machine learning models.
    UNASSIGNED: The proposed KeratoEL model effectively detects keratoconus at an early stage by combining SVM, DT, RF, and ANN algorithms, demonstrating superior performance over existing models. These results underscore the potential of the KeratoEL ensemble approach in enhancing early detection and treatment of keratoconus.
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  • 文章类型: Journal Article
    由于在当前的数字技术中处理大量数据的不可避免性,vonNeumann计算的瓶颈引起了人们的极大关注。受人脑工作原理的启发,神经形态计算的人工突触已被作为一种新兴的解决方案进行了探索。尤其是,光电突触越来越受到人们的关注,因为视觉是信息的重要来源,处理光学刺激至关重要。在这里,提出了由厘米尺度的二氧化碲(TeO2)膜组成的柔性光电突触设备,该设备可检测宽带波长并表现出突触特性。基于TeO2的柔性设备展示了一套全面的模拟基本光电突触特性;即兴奋性突触后电流(EPSC),配对脉冲促进(PPF),将短期记忆转换为长期记忆,学习/遗忘此外,它们具有不同波长的线性和对称电导突触权重更新,适用于宽带神经形态计算。基于这一大组突触属性,演示了各种应用,如逻辑函数或深度学习和图像识别以及学习模拟。这项工作提出了一个重要的里程碑,晶片规模的金属氧化物半导体为基础的人工突触单独利用其光电特性和机械灵活性,这对放大的神经形态架构很有吸引力。
    Prevailing over the bottleneck of von Neumann computing has been significant attention due to the inevitableness of proceeding through enormous data volumes in current digital technologies. Inspired by the human brain\'s operational principle, the artificial synapse of neuromorphic computing has been explored as an emerging solution. Especially, the optoelectronic synapse is of growing interest as vision is an essential source of information in which dealing with optical stimuli is vital. Herein, flexible optoelectronic synaptic devices composed of centimeter-scale tellurium dioxide (TeO2) films detecting and exhibiting synaptic characteristics to broadband wavelengths are presented. The TeO2-based flexible devices demonstrate a comprehensive set of emulating basic optoelectronic synaptic characteristics; i.e., excitatory postsynaptic current (EPSC), paired-pulse facilitation (PPF), conversion of short-term to long-term memory, and learning/forgetting. Furthermore, they feature linear and symmetric conductance synaptic weight updates at various wavelengths, which are applicable to broadband neuromorphic computations. Based on this large set of synaptic attributes, a variety of applications such as logistic functions or deep learning and image recognition as well as learning simulations are demonstrated. This work proposes a significant milestone of wafer-scale metal oxide semiconductor-based artificial synapses solely utilizing their optoelectronic features and mechanical flexibility, which is attractive toward scaled-up neuromorphic architectures.
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  • 文章类型: Journal Article
    探索可行和可再生的替代品以减少对传统化石塑料的依赖对于可持续发展至关重要。这些替代品可以从生物质生产,原料组成和系统参数可能存在较大的不确定性和变异性。本研究开发了一个建模框架,该框架将从摇篮到坟墓的生命周期评估(LCA)与严格的过程模型和人工智能(AI)模型集成在一起,以进行不确定性和变异性分析。仅使用流程模型进行操作非常耗时。该建模框架检查了美国玉米秸秆生产的聚乳酸(PLA)。通过进行蒙特卡洛模拟来分析不确定性和变异性,以显示详细的结果分布。我们的蒙特卡洛模拟结果表明,1千克PLA的平均生命周期全球变暖潜力(GWP)为4.3千克CO2eq(P5-P954.1-4.4),用于将PLA与燃烧的天然气堆肥用于生物炼制,3.7kgCO2eq(P5-P953.4-3.9)用于焚烧PLA的电力与燃烧用于生物炼制的天然气,和1.9kgCO2eq(P5-P951.6-2.1),用于焚烧PLA的电力,并燃烧木质颗粒用于生物炼制。确定了不同环境影响类别的权衡。基于原料组成的变化,训练了两个人工智能模型:随机森林和人工神经网络。两种AI模型都表现出很高的预测精度;然而,随机森林的表现略好。
    Exploring feasible and renewable alternatives to reduce dependency on traditional fossil-based plastics is critical for sustainable development. These alternatives can be produced from biomass, which may have large uncertainties and variabilities in the feedstock composition and system parameters. This study develops a modeling framework that integrates cradle-to-grave life cycle assessment (LCA) with a rigorous process model and artificial intelligence (AI) models to conduct uncertainty and variability analyses, which are highly time-consuming to conduct using only the process model. This modeling framework examines polylactic acid (PLA) produced from corn stover in the U.S. An analysis of uncertainty and variability was conducted by performing a Monte Carlo simulation to show the detailed result distributions. Our Monte Carlo simulation results show that the mean life-cycle Global Warming Potential (GWP) of 1 kg PLA is 4.3 kgCO2eq (P5-P95 4.1-4.4) for composting PLA with natural gas combusted for the biorefinery, 3.7 kgCO2eq (P5-P95 3.4-3.9) for incinerating PLA for electricity with natural gas combusted for the biorefinery, and 1.9 kgCO2eq (P5-P95 1.6-2.1) for incinerating PLA for electricity with wood pellets combusted for the biorefinery. Tradeoffs for different environmental impact categories were identified. Based on feedstock composition variations, two AI models were trained: random forest and artificial neural networks. Both AI models demonstrated high prediction accuracy; however, the random forest performed slightly better.
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  • 文章类型: Journal Article
    数据聚类是机器学习的重要领域,在广泛领域具有适用性,喜欢,业务分析,制造,能源,healthcare,旅行,和物流。已经开发了各种聚类应用。基于自组织映射(SOM)的数据聚类方法通常使用(网格)范围从2×2到8×8(4-64个神经元[微集群])的映射维度,而没有任何明确的理由使用特定的维度。因此,没有获得优化的结果。这些算法使用一些次要方法将这些微集群映射到较低维度(实际集群数量),喜欢,2、3或4,视情况而定,基于特定数据集中的最佳聚类数量。次要方法,在大多数作品中观察到,不是SOM,是一种算法,喜欢,砍树或其他。
    在这项工作中,所提出的方法将给出如何为给定数据集选择最优的更高维的SOM的想法,并且此维度再次聚集到较低的实际维度中。主要和次要,两者都利用SOM对数据进行聚类,并发现SOM的权重矩阵非常有意义。SOM的优化二维配置对于每个数据集都不相同,和这项工作也试图发现这种配置。
    在虹膜上获得的调整后的随机指数,葡萄酒,威斯康星诊断乳腺癌,新甲状腺,种子,A1,不平衡,皮肤科,大肠杆菌,电离层是,分别,0.7173、0.9134、0.7543、0.8041、0.7781、0.8907、0.8755、0.7543、0.5013和0.1728,其性能优于网络上所有其他可用的结果,并且在此工作中没有进行属性减少时。
    发现SOM优于或等于其他聚类方法,喜欢,k-means或其他,并且可以成功地用于对所有类型的数据集进行群集。来自医疗等不同领域的十个基准数据集,生物,在这项工作中测试了化学物质,包括合成数据集。
    UNASSIGNED: Data clustering is an important field of machine learning that has applicability in wide areas, like, business analysis, manufacturing, energy, healthcare, traveling, and logistics. A variety of clustering applications have already been developed. Data clustering approaches based on self-organizing map (SOM) generally use the map dimensions (of the grid) ranging from 2 × 2 to 8 × 8 (4-64 neurons [microclusters]) without any explicit reason for using the particular dimension, and therefore optimized results are not obtained. These algorithms use some secondary approaches to map these microclusters into the lower dimension (actual number of clusters), like, 2, 3, or 4, as the case may be, based on the optimum number of clusters in the specific data set. The secondary approach, observed in most of the works, is not SOM and is an algorithm, like, cut tree or the other.
    UNASSIGNED: In this work, the proposed approach will give an idea of how to select the most optimal higher dimension of SOM for the given data set, and this dimension is again clustered into the lower actual dimension. Primary and secondary, both utilize the SOM to cluster the data and discover that the weight matrix of the SOM is very meaningful. The optimized two-dimensional configuration of SOM is not the same for every data set, and this work also tries to discover this configuration.
    UNASSIGNED: The adjusted randomized index obtained on the Iris, Wine, Wisconsin diagnostic breast cancer, New Thyroid, Seeds, A1, Imbalance, Dermatology, Ecoli, and Ionosphere is, respectively, 0.7173, 0.9134, 0.7543, 0.8041, 0.7781, 0.8907, 0.8755, 0.7543, 0.5013, and 0.1728, which outperforms all other results available on the web and when no reduction of attributes is done in this work.
    UNASSIGNED: It is found that SOM is superior to or on par with other clustering approaches, like, k-means or the other, and could be used successfully to cluster all types of data sets. Ten benchmark data sets from diverse domains like medical, biological, and chemical are tested in this work, including the synthetic data sets.
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  • 文章类型: Journal Article
    由化石燃料的使用引起的全球变暖是当今世界共同关注的问题。通过高保真计算流体动力学(CFD)对现代发动机燃烧器进行深入的基础研究和优化设计具有重要的现实意义。从而实现节能减排。然而,复杂的碳氢化合物化学,预测建模不可或缺的组成部分,计算要求很高。其在基于仿真的设计优化中的应用,虽然可取,是相当有限的。为了应对这一挑战,我们提出了一种用人工神经网络(ANN)表示复杂化学的方法,用拉丁超立方采样(LHS)方法生成的综合样本数据集进行训练。在给定的化学动力学机制下,热化学样品数据能够在各种湍流火焰中覆盖整个可访问的压力/温度/物种空间。基于ANN的模型由两个不同的层组成:自组织映射(SOM)和反向传播神经网络(BPNN)。该方法被证明代表了30种甲烷的化学机理。所获得的ANN模型用于模拟非预混合湍流火焰(DLR_A)和部分预混合湍流火焰(火焰D),以验证其对不同火焰的适用性。结果表明,基于人工神经网络的化学动力学可以将计算成本降低约两个数量级,而不会损失精度。所提出的方法可以成功地构建基于人工神经网络的化学机制,具有显着的效率增益和广泛的适用性,因此,复杂的碳氢化合物燃料具有巨大的潜力。
    Global warming caused by the use of fossil fuels is a common concern of the world today. It is of practical importance to conduct in-depth fundamental research and optimal design for modern engine combustors through high-fidelity computational fluid dynamics (CFD), so as to achieve energy conservation and emission reduction. However, complex hydrocarbon chemistry, an indispensable component for predictive modeling, is computationally demanding. Its application in simulation-based design optimization, although desirable, is quite limited. To address this challenge, we propose a methodology for representing complex chemistry with artificial neural networks (ANNs), which are trained with a comprehensive sample dataset generated by the Latin hypercube sampling (LHS) method. With a given chemical kinetic mechanism, the thermochemical sample data is able to cover the whole accessible pressure/temperature/species space in various turbulent flames. The ANN-based model consists of two different layers: the self-organizing map (SOM) and the back-propagation neural network (BPNN). The methodology is demonstrated to represent a 30-species methane chemical mechanism. The obtained ANN model is applied to simulate both a non-premixed turbulent flame (DLR_A) and a partially premixed turbulent flame (Flame D) to validate its applicability for different flames. Results show that the ANN-based chemical kinetics can reduce the computational cost by about two orders of magnitude without loss of accuracy. The proposed methodology can successfully construct an ANN-based chemical mechanism with significant efficiency gain and a broad scope of applicability, and thus holds a great potential for complex hydrocarbon fuels.
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  • 文章类型: Journal Article
    作为与ICT扩展同步的范式转变,智能电子医疗系统在加强医疗服务和疾病预防工作方面有着巨大的前景。这些系统通过实时收集和分析由物联网(IoT)和机器学习实现的医疗数据来深入了解患者的健康状况。随着尖端人工智能和机器学习技术的广泛应用,医学中的预测分析可以帮助实现从被动医疗战略向主动医疗战略的转变。能够快速准确地评估大量数据,得出明智的结论,解决棘手的问题,人工神经网络可以彻底改变几个行业。在这项研究中,使用多层感知器人工神经网络评估了两种心脏病,该网络结合了遗传算法和错误反向传播机制。人工神经网络处理连续时间序列数据的能力对于优化智能电子健康系统中的资源至关重要,特别是随着患者信息量的增加和电子临床记录的广泛使用。这需要创建更准确的预测模型。通过使用物联网(IoT)传感器,拟议的系统收集数据,然后用于对保存在云中的患者病史相关电子临床数据进行预测分析。使用Mu-LTM(多向长期记忆)来准确监测和预测心脏病风险的智能医疗保健系统的覆盖率误差为97.94%,准确率为97.89%,灵敏度为97.96%,特异性为97.99%。与其他智能心脏病预测系统相比,F1评分为97.95%,精密度为97.71%。
    As a paradigm shift in tandem with the expansion of ICT, smart electronic health systems hold great promise for enhancing healthcare delivery and illness prevention efforts. These systems acquire an in-depth understanding of patient health states through the real-time collection and analysis of medical data enabled by the Internet of Things (IoT) and machine learning. With the widespread use of cutting-edge artificial intelligence and machine learning techniques, predictive analytics in medicine can assist in making the shift from a reactive to a proactive healthcare strategy. With the ability to rapidly and precisely evaluate massive amounts of data, draw intelligent conclusions, and solve difficult issues, artificial neural networks could revolutionize several industries. Two cardiac illnesses were assessed in this study using a multilayer perceptron artificial neural network that incorporated a genetic algorithm and an error-back propagation mechanism. The ability of artificial neural networks to handle consecutive time series data is crucial for optimizing resources in smart electronic health systems, especially with the increasing volume of patient information and the broad use of electronic clinical records. This requires the creation of more accurate predictive models. Through the use of Internet of Things (IoT) sensors, the proposed system gathers data, which is then used to do predictive analytics on patient history-related electronic clinical data saved in the cloud. A smart healthcare system that uses Mu-LTM (multidirectional long-term memory) to accurately monitor and predict the risk of heart disease has a coverage error of 97.94 %, an accuracy of 97.89 %, a sensitivity of 97.96 %, and a specificity of 97.99 %. In comparison to other smart heart disease prediction systems, the F1-score of 97.95 % and precision of 97.71 % is very good.
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