Machine learning approach

机器学习方法
  • 文章类型: Journal Article
    动脉瘤性蛛网膜下腔出血(aSAH)是一种危及生命的疾病,死亡率和发病率高。aSAH的改良Fisher等级与神经功能缺损之间存在实质性联系。本研究旨在使用机器学习方法分析与aSAH的修改Fisher等级相关的因素。
    进行了多中心观察性研究。从中国五家三级医院招募aSAH患者。使用改良的Fisher分级量表测量aSAH的出血量。分析了aSAH改良Fisher分级的危险因素,其中包括社会人口因素,临床因素,血液指数,动脉瘤破裂的特点。我们构建了几个基于树的机器学习模型(XGBoost,CatBoost,LightGBM)用于预测,并使用网格搜索来优化模型参数。综合评价模型,我们使用了准确性,Precision,接收器工作特性曲线下面积(AUROC),精确召回曲线下的面积(AUPRC),和Brier作为评价指标,评估模型性能,选择最优模型。
    共招募了888例aSAH患者,其中305人的Fisher改良等级为3级和4级。结果表明,XGBoost模型的AUROC最高,为0.772,各项指标优于CatBoost和LightGBM。特征重要性图显示顶部特征变量包括血小板,凝血酶时间,纤维蛋白原,入院前收缩压,活化部分凝血活酶时间,以及aSAH发作与首次CT检查之间的时间间隔。
    确定了导致aSAH改良Fisher等级的因素,这为未来的研究和临床干预提供了有价值的见解。在未破裂动脉瘤的治疗中应控制这些危险因素,如有必要,可以给予适当的治疗,以降低动脉瘤破裂后严重出血的风险。
    UNASSIGNED: Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening medical condition with a high fatality and morbidity rate. There was a substantial link between the modified Fisher grade of aSAH and the neurological function deficit. This study aimed to analyze the factors associated with the modified Fisher grade of aSAH using a machine learning approach.
    UNASSIGNED: A multi-center observational study was conducted. The patients with aSAH were recruited from five tertiary hospitals in China. The volume of hemorrhage in aSAH was measured using the modified Fisher grade scale. The risk factors responsible for the modified Fisher grade of aSAH were analyzed, which include sociodemographic factors, clinical factors, blood index, and ruptured aneurysm characteristics. We built several tree-based machine learning models (XGBoost, CatBoost, LightGBM) for prediction and used grid search to optimize model parameters. To comprehensively evaluate the model, we used Accuracy, Precision, Area Under the Receiver Operating Characteristic Curve (AUROC), Area Under the Precision-Recall Curve (AUPRC), and Brier as evaluation indicators to assess the model performance and select the best model.
    UNASSIGNED: A total of 888 patients with aSAH were recruited, of whom 305 with modified Fisher grade of 3 and 4. The results show that the XGBoost model has the highest AUROC of 0.772, and the indicators are better than CatBoost and LightGBM. The feature importance graph shows that the top feature variables include platelet, thrombin time, fibrinogen, preadmission systolic blood pressure, activated partial thromboplastin time, and the time interval between the onset of aSAH and the first-time CT examination.
    UNASSIGNED: The factors responsible for the modified Fisher grade of aSAH were identified, which offered valuable insights for future research and clinical intervention. These risk factors should be controlled in the treatment of unruptured aneurysms, and appropriate treatment can be given if necessary to reduce the risk of severe hemorrhage after aneurysm rupture.
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  • 文章类型: Journal Article
    在这项研究中,了解海气交换的季节动态及其调节机制,我们结合测量和机器学习(ML)预测研究了台湾海峡西部海气界面的多环芳烃(PAHs)。对于3环PAHs和大多数4到6环,观察到挥发和沉积通量,分别。海气交换通量的季节性变化表明了季风过渡的影响。可解释ML方法(XGBoost)的结果表明,3环PAHs的挥发受到溶解的PAH浓度(贡献24.0%)的显着控制,4至6环PAHs的气态沉积与东北季风期间来自华北的更多污染空气团有关。亨利定律常数作为次要因素出现,影响海气交换的强度,特别是对于低分子量的多环芳烃。在环境参数中,显著高风速作为主要因素出现,生物泵在表层海水中多环芳烃的消耗放大了气态沉积过程。西部TWS中PAHs的空气-水界面交换的独特动态可归因于初级排放强度的变化,生物活性,以及远距离大气传输的不一致路径,特别是在季风过渡的背景下。
    In this study, to understand the seasonal dynamics of air-sea exchange and its regulation mechanisms, we investigated polycyclic aromatic hydrocarbons (PAHs) at the air-sea interface in the western Taiwan Strait in combination with measurements and machine learning (ML) predictions. For 3-ring PAHs and most of 4- to 6-ring, volatilization and deposition fluxes were observed, respectively. Seasonal variations in air-sea exchange flux suggest the influence of monsoon transitions. Results of interpretable ML approach (XGBoost) indicated that volatilization of 3-ring PAHs was significantly controlled by dissolved PAH concentrations (contributed 24.0 %), and the gaseous deposition of 4- to 6-ring PAHs was related to more contaminated air masses originating from North China during the northeast monsoon. Henry\'s law constant emerged as a secondary factor, influencing the intensity of air-sea exchange, particularly for low molecular weight PAHs. Among environmental parameters, notably high wind speed emerges as the primary factor and biological pump\'s depletion of PAHs in surface seawater amplifies the gaseous deposition process. The distinct dynamics of exchanges at the air-water interface for PAHs in the western TWS can be attributed to variations in primary emission intensities, biological activity, and the inconsistent pathways of long-range atmospheric transport, particularly within the context of the monsoon transition.
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  • 文章类型: Journal Article
    简介:内质网应激(ERS)是对未折叠蛋白质积累的反应,在肿瘤的发展中起着至关重要的作用。包括肿瘤细胞侵袭等过程,转移,和免疫逃避。然而,ERS在乳腺癌(BC)中的具体调控机制尚不清楚.方法:在本研究中,我们分析了来自乳腺癌癌症基因组图谱(TCGA)的RNA测序数据,并确定了与ERS相关的8个核心基因:ELOVL2,IFNG,MAP2K6、MZB1、PCSK6、PCSK9、IGF2BP1和POP1。我们评估了他们的个体表达,独立诊断,和乳腺癌患者的预后价值。多因素Cox分析建立了风险预测模型,使用外部数据集进行验证。此外,我们对这些基因的免疫浸润和药物敏感性进行了全面评估。结果:结果表明,这八个核心基因在调节乳腺癌(BRCA)患者的免疫微环境中起着至关重要的作用。同时,基于这八个基因表达的独立诊断模型显示有限的独立诊断价值,其独立预后价值不令人满意,时间ROCAUC值通常低于0.5。根据Logistic回归神经网络和风险预测模型的结果,当这八个基因协同相互作用时,它们可以作为乳腺癌患者诊断和预后的优良生物标志物。此外,研究结果已通过qPCR实验和验证得到证实。结论:总之,我们探索了BRCA患者中ERS的机制,并确定了8个优秀的生物分子诊断标志物和预后指标.使用GEO数据库和qPCR对研究结果进行了双重验证。
    Introduction: Endoplasmic reticulum stress (ERS) was a response to the accumulation of unfolded proteins and plays a crucial role in the development of tumors, including processes such as tumor cell invasion, metastasis, and immune evasion. However, the specific regulatory mechanisms of ERS in breast cancer (BC) remain unclear. Methods: In this study, we analyzed RNA sequencing data from The Cancer Genome Atlas (TCGA) for breast cancer and identified 8 core genes associated with ERS: ELOVL2, IFNG, MAP2K6, MZB1, PCSK6, PCSK9, IGF2BP1, and POP1. We evaluated their individual expression, independent diagnostic, and prognostic values in breast cancer patients. A multifactorial Cox analysis established a risk prognostic model, validated with an external dataset. Additionally, we conducted a comprehensive assessment of immune infiltration and drug sensitivity for these genes. Results: The results indicate that these eight core genes play a crucial role in regulating the immune microenvironment of breast cancer (BRCA) patients. Meanwhile, an independent diagnostic model based on the expression of these eight genes shows limited independent diagnostic value, and its independent prognostic value is unsatisfactory, with the time ROC AUC values generally below 0.5. According to the results of logistic regression neural networks and risk prognosis models, when these eight genes interact synergistically, they can serve as excellent biomarkers for the diagnosis and prognosis of breast cancer patients. Furthermore, the research findings have been confirmed through qPCR experiments and validation. Conclusion: In conclusion, we explored the mechanisms of ERS in BRCA patients and identified 8 outstanding biomolecular diagnostic markers and prognostic indicators. The research results were double-validated using the GEO database and qPCR.
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  • 文章类型: Journal Article
    作为基础设施,下水道在每个城市和城镇的内部发挥着重要作用,以清除各种宜居和功能空间中不卫生的水。下水道管道故障(SPF)在许多方面都是不需要和不安全的,因为他们造成的干扰是不可否认的。下水道管道经常与人孔相遇,与配水系统不同,就像在下水道里一样,水的运动是由于重力和人孔需要在每个交叉点以及通过管道长度。许多研究都集中在下水道管道故障等方面,但是很少有研究表明人孔接近度对管道故障的影响。下水管道故障的预测和定位受下水管道性质不同参数的影响,如材料,年龄,斜坡,和下水道的深度。本研究调查了支持向量机(SVM)的适用性,监督机器学习(ML)算法,用于开发预测模型来预测下水道管道故障和人孔接近度的影响。结果表明,SVM的准确率为84%,可以正确地逼近人孔对下水道管道故障的影响。
    As a basic infrastructure, sewers play an important role in the innards of every city and town to remove unsanitary water from all kinds of livable and functional spaces. Sewer pipe failures (SPFs) are unwanted and unsafe in many ways, as the disturbance that they cause is undeniable. Sewer pipes meet manholes frequently, unlike water distribution systems, as in sewers, water movement is due to gravity and manholes are needed in every intersection as well as through pipe length. Many studies have been focused on sewer pipe failures and so on, but few investigations have been done to show the effect of manhole proximity on pipe failure. Predicting and localizing the sewer pipe failures is affected by different parameters of sewer pipe properties, such as material, age, slope, and depth of the sewer pipes. This study investigates the applicability of a support vector machine (SVM), a supervised machine learning (ML) algorithm, for the development of a prediction model to predict sewer pipe failures and the effects of manhole proximity. The results show that SVM with an accuracy of 84% can properly approximate the manhole effects on sewer pipe failures.
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  • 文章类型: Journal Article
    T细胞受体(TCR)库提供了对复杂人类疾病的宝贵见解,包括癌症。免疫测序技术的最新进展显着改善了我们对TCR库的理解。已经设计了一些计算方法来鉴定癌症相关的TCR并且使得能够使用TCR测序数据进行癌症检测。然而,现有的方法往往是有限的,因为它们没有充分考虑到一组TCR之间的相关性,阻碍了关键TCR的识别。此外,癌症相关TCR分布的稀疏性对准确预测提出了挑战。
    为了解决这些问题,我们提出了DeepLION2,这是一种创新的深度多实例对比学习框架,专门设计用于增强癌症相关TCR预测.DeepLION2利用基于内容的稀疏自我注意力,关注每个TCR的前k个相关TCR,有效地对TCR间的相关性进行建模。此外,它采用了一种对比学习策略来引导注意力矩阵的参数更新,防止模型关注非癌症相关TCR。
    对不同患者队列进行广泛的实验,涵盖了十多种癌症类型,证明DeepLION2在准确性方面明显优于当前最先进的方法,灵敏度,特异性,马修斯相关系数,和曲线下面积(AUC)。值得注意的是,DeepLION2在甲状腺上实现了令人印象深刻的AUC值0.933、0.880和0.763,肺,和胃肠道癌症队列,分别。此外,它有效地识别了与癌症相关的TCR及其关键基序,强调在TCR-肽结合中起关键作用的氨基酸。
    这些令人信服的结果强调了DeepLION2在增强癌症检测和促进个性化癌症免疫治疗方面的潜力。DeepLION2在GitHub上公开可用,在https://github.com/Bioinformatics7181/DeepLION2,仅供学术使用。
    T cell receptor (TCR) repertoires provide valuable insights into complex human diseases, including cancers. Recent advancements in immune sequencing technology have significantly improved our understanding of TCR repertoire. Some computational methods have been devised to identify cancer-associated TCRs and enable cancer detection using TCR sequencing data. However, the existing methods are often limited by their inadequate consideration of the correlations among TCRs within a repertoire, hindering the identification of crucial TCRs. Additionally, the sparsity of cancer-associated TCR distribution presents a challenge in accurate prediction.
    To address these issues, we presented DeepLION2, an innovative deep multi-instance contrastive learning framework specifically designed to enhance cancer-associated TCR prediction. DeepLION2 leveraged content-based sparse self-attention, focusing on the top k related TCRs for each TCR, to effectively model inter-TCR correlations. Furthermore, it adopted a contrastive learning strategy for bootstrapping parameter updates of the attention matrix, preventing the model from fixating on non-cancer-associated TCRs.
    Extensive experimentation on diverse patient cohorts, encompassing over ten cancer types, demonstrated that DeepLION2 significantly outperformed current state-of-the-art methods in terms of accuracy, sensitivity, specificity, Matthews correlation coefficient, and area under the curve (AUC). Notably, DeepLION2 achieved impressive AUC values of 0.933, 0.880, and 0.763 on thyroid, lung, and gastrointestinal cancer cohorts, respectively. Furthermore, it effectively identified cancer-associated TCRs along with their key motifs, highlighting the amino acids that play a crucial role in TCR-peptide binding.
    These compelling results underscore DeepLION2\'s potential for enhancing cancer detection and facilitating personalized cancer immunotherapy. DeepLION2 is publicly available on GitHub, at https://github.com/Bioinformatics7181/DeepLION2, for academic use only.
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  • 文章类型: Journal Article
    数据驱动的机器学习方法有望替代基于物理的地下水数值模型,并捕获输入输出关系以减少计算负担。但是性能和可靠性受到不同不确定性来源的强烈影响。传统的研究通常依赖于独立的机器学习代理方法,并且无法考虑由于结构缺陷而导致的模型输出错误。为了克服这个问题,这项研究提出了一种灵活的集成贝叶斯机器学习建模(IBMLM)方法,以明确量化源自机器学习代理模型的结构和参数的不确定性。将期望最大化(EM)算法与贝叶斯模型平均(BMA)相结合,以找出最大似然并构造后验预测分布。框架中包含了三种代表不同模型复杂性的机器学习方法,包括人工神经网络(ANN),支持向量机(SVM)和随机森林(RF)。拟议的IBMLM方法在野外规模的现实世界“1500英尺”砂含水层中得到了证明,巴吞鲁日,美国,过度开发导致严重的盐水入侵(SWI)问题。这项研究增加了对复杂的盐水入侵模型中氯化物浓度传输如何响应多维提取-注入修复策略的理解。结果表明,大多数IBMLM表现出高于0.98的r值和高于0.93的NSE值,均略高于单个机器学习,确认IBMLM已经建立,可以提供比单个机器学习模型更好的模型预测,同时保持高计算效率的优势。发现IBMLM可用于预测盐水入侵,而无需运行基于物理的数值模拟模型。我们得出的结论是,明确考虑机器学习模型结构的不确定性以及参数可以提高预测的准确性和可靠性。并修正不确定性界限。IBMLM框架的适用性可以扩展到由于缺乏地下信息而难以建立物理水文地质模型的地区。
    Data-driven machine learning approaches are promising to substitute physically based groundwater numerical models and capture input-output relationships for reducing computational burden. But the performance and reliability are strongly influenced by different sources of uncertainty. Conventional researches generally rely on a stand-alone machine learning surrogate approach and fail to account for errors in model outputs resulting from structural deficiencies. To overcome this issue, this study proposes a flexible integrated Bayesian machine learning modeling (IBMLM) method to explicitly quantify uncertainties originating from structures and parameters of machine learning surrogate models. An Expectation-Maximization (EM) algorithm is combined with Bayesian model averaging (BMA) to find out maximum likelihood and construct posterior predictive distribution. Three machine learning approaches representing different model complexity are incorporated in the framework, including artificial neural network (ANN), support vector machine (SVM) and random forest (RF). The proposed IBMLM method is demonstrated in a field-scale real-world \"1500-foot\" sand aquifer, Baton Rouge, USA, where overexploitation caused serious saltwater intrusion (SWI) issues. This study adds to the understanding of how chloride concentration transport responds to multi-dimensional extraction-injection remediation strategies in a sophisticated saltwater intrusion model. Results show that most IBMLM exhibit r values above 0.98 and NSE values above 0.93, both slightly higher than individual machine learning, confirming that the IBMLM is well established to provide better model predictions than individual machine learning models, while maintaining the advantage of high computing efficiency. The IBMLM is found useful to predict saltwater intrusion without running the physically based numerical simulation model. We conclude that an explicit consideration of machine learning model structure uncertainty along with parameters improves accuracy and reliability of predictions, and also corrects uncertainty bounds. The applicability of the IBMLM framework can be extended in regions where a physical hydrogeologic model is difficult to build due to lack of subsurface information.
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  • 文章类型: Journal Article
    药物警戒在监测人/动物群体中与化学物质相关的不良事件(AE)中起着关键作用。随着自发报告系统的增加,研究人员转向计算机模拟方法来有效分析药物安全性.这里,我们回顾了通过比较分析和可视化策略评估多种药物-药物/药物-疾病不良事件的方法.
    不成比例,涉及多阶段统计方法和数据处理,识别药物-AE对中的安全信号。通过根据疾病适应症/人口统计学对数据进行分层,研究人员解决混杂因素并评估药物安全性.比较分析,包括聚类技术和可视化技术,评估药物相似性,模式,和趋势,计算相关性,并确定不同的毒性。此外,我们对药物警戒进行了彻底的Scopus搜索,从2003年到2023年,产生了5836种出版物。
    药物警戒依赖于不同的数据源,在集成计算机方法方面面临挑战,并要求遵守法规和采用人工智能。系统使用统计分析可以识别药物的潜在风险。频率论和贝叶斯方法用于不成比例,每个人都有自己的优点和缺点。药物基因组学与药物警戒的整合实现了个性化医疗,人工智能进一步增强了患者的参与度。这种多学科方法充满希望,提高药物疗效和安全性,应该是一个健康研究的核心任务。
    UNASSIGNED: Pharmacovigilance plays a pivotal role in monitoring adverse events (AEs) related to chemical substances in human/animal populations. With increasing spontaneous-reporting systems, researchers turned to in-silico approaches to efficiently analyze drug safety profiles. Here, we review in-silico methods employed for assessing multiple drug-drug/drug-disease AEs covered by comparative analyses and visualization strategies.
    UNASSIGNED: Disproportionality, involving multi-stage statistical methodologies and data processing, identifies safety signals among drug-AE pairs. By stratifying data based on disease indications/demographics, researchers address confounders and assess drug safety. Comparative analyses, including clustering techniques and visualization techniques, assess drug similarities, patterns, and trends, calculate correlations, and identify distinct toxicities. Furthermore, we conducted a thorough Scopus search on \'pharmacovigilance,\' yielding 5,836 publications spanning 2003 to 2023.
    UNASSIGNED: Pharmacovigilance relies on diverse data sources, presenting challenges in the integration of in-silico approaches and requiring compliance with regulations and AI adoption. Systematic use of statistical analyses enables identifications of potential risks with drugs. Frequentist and Bayesian methods are used in disproportionalities, each with its strengths and weaknesses. Integration of pharmacogenomics with pharmacovigilance enables personalized medicine, with AI further enhancing patient engagement. This multidisciplinary approach holds promise, improving drug efficacy and safety, and should be a core mission of One-Health studies.
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  • 文章类型: Journal Article
    玩家未知的战场(PUBG),广泛玩的多人在线游戏,引发了人们对其对玩家影响的兴趣和担忧。本研究探讨了栽培水平等因素之间的关系,动机,宗教活动,游戏障碍,和PUBG玩家之间的成瘾。
    这项研究采用了一种方便的采样技术来选择500名PUBG玩家的样本。使用人工神经网络(ANN)模型来确定影响栽培水平的主要因素。
    男性参与者的耕种水平高于女性参与者。根据ANN模型,游戏障碍表现出最大的正常化重要性,值为100%。其次是宗教层面,其归一化重要性为54.6%。此外,动机水平和游戏成瘾表现出47.6和44.4%的归一化重要性值,分别。这项研究表明,参与PUBG与受访者观察到的种植效果之间存在统计学上的显着相关性。
    这项研究强调了几个值得注意的因素,包括游戏障碍,宗教信仰,动机水平,游戏成瘾这些因素为理解游戏行为和设计有效的干预措施提供了宝贵的见解。
    UNASSIGNED: PlayerUnknown\'s battlegrounds (PUBG), a widely played multiplayer online game, has sparked interest and concern regarding its impact on players. This study explored the relationship between factors such as cultivation level, motivation, religious engagement, gaming disorder, and addiction among PUBG players.
    UNASSIGNED: This study employed a convenience sampling technique to select a sample of 500 PUBG players. An Artificial Neural Network (ANN) model was used to identify the primary factors contributing to the level of cultivation.
    UNASSIGNED: Male participants exhibited a higher level of cultivation than their female counterparts did. According to the ANN model, gaming disorder exhibited the greatest normalized importance, with a value of 100%. This was followed by the religious level, which had a normalized importance of 54.6%. Additionally, motivation level and gaming addiction demonstrated normalized importance values of 47.6 and 44.4%, respectively. This study revealed a statistically significant correlation between engaging in PUBG and the cultivation effect observed among respondents.
    UNASSIGNED: This study highlights several noteworthy factors, including gaming disorder, religious affiliation, motivation level, and gaming addiction. These factors offer valuable insights into understanding gaming behavior and devising effective interventions.
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  • 文章类型: Journal Article
    微生物保质期是指食品在其微生物质量方面保持安全食用的持续时间。预测微生物学是一个科学领域,专注于使用数学模型和计算技术来预测生长,生存,以及微生物在食物和其他环境中的行为。这种方法允许研究人员,食品生产商,和监管机构评估与微生物污染和腐败相关的潜在风险,能够就食品安全做出明智的决定,质量,和保质期。两步和一步建模方法是使用主要和次要模型的建模技术,虽然机器学习方法不需要使用初级和次级模型来描述微生物的定量行为,导致食品变质。这篇全面的综述深入研究了各种建模技术,这些技术已在预测食品微生物学中应用于估计食品的保质期。通过检查优势,局限性,以及不同方法的含义,这篇综述为寻求提高微生物保质期预测的准确性和可靠性的研究人员和从业人员提供了宝贵的资源。最终,对这些技术的更深入的了解有望推进预测食品微生物学领域,促进改进的食品安全做法,减少浪费,增强了消费者信心。
    Microbial shelf life refers to the duration of time during which a food product remains safe for consumption in terms of its microbiological quality. Predictive microbiology is a field of science that focuses on using mathematical models and computational techniques to predict the growth, survival, and behaviour of microorganisms in food and other environments. This approach allows researchers, food producers, and regulatory bodies to assess the potential risks associated with microbial contamination and spoilage, enabling informed decisions to be made regarding food safety, quality, and shelf life. Two-step and one-step modelling approaches are modelling techniques with primary and secondary models being used, while the machine learning approach does not require using primary and secondary models for describing the quantitative behaviour of microorganisms, leading to the spoilage of food products. This comprehensive review delves into the various modelling techniques that have found applications in predictive food microbiology for estimating the shelf life of food products. By examining the strengths, limitations, and implications of the different approaches, this review provides an invaluable resource for researchers and practitioners seeking to enhance the accuracy and reliability of microbial shelf life predictions. Ultimately, a deeper understanding of these techniques promises to advance the domain of predictive food microbiology, fostering improved food safety practices, reduced waste, and heightened consumer confidence.
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  • 文章类型: Journal Article
    量化组织学样本中与衰老相关的变化的能力很重要,因为它允许评估旨在影响健康跨度的干预措施。我们使用了一种机器学习架构,可以训练来检测和量化小鼠肾脏的这些变化。使用额外的保留数据,我们展示了我们模型的验证,与病理学家使用老年病学研究网络老化分级方案给出的分数相关,及其在为组织学样本提供可重复和可量化的年龄评分方面的应用。老化量化还提供了对图像外观的可能变化的见解,这些变化与特定的疾病病理学指定的病变无关。此外,我们为H&E染色的载玻片提供训练有素的分类器,以及有关如何使用这些以及如何使用我们的体系结构为其他组织学染色和组织创建其他分类器的教程。这种结构和组合的资源允许对小鼠衰老研究进行高通量定量,一般并特别适用于肾组织。
    The ability to quantify aging-related changes in histological samples is important, as it allows for evaluation of interventions intended to effect health span. We used a machine learning architecture that can be trained to detect and quantify these changes in the mouse kidney. Using additional held out data, we show validation of our model, correlation with scores given by pathologists using the Geropathology Research Network aging grading scheme, and its application in providing reproducible and quantifiable age scores for histological samples. Aging quantification also provides the insights into possible changes in image appearance that are independent of specific geropathology-specified lesions. Furthermore, we provide trained classifiers for H&E-stained slides, as well as tutorials on how to use these and how to create additional classifiers for other histological stains and tissues using our architecture. This architecture and combined resources allow for the high throughput quantification of mouse aging studies in general and specifically applicable to kidney tissues.
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