Artificial intelligence

人工智能
  • 文章类型: Journal Article
    为改进当前我国高校油画教学模式,本研究结合深度学习技术和人工智能技术对油画教学进行探索。首先,分析了个性化教育的研究现状和基于画笔特征的图像分类的相关研究。其次,基于卷积神经网络,数学形态学,和支持向量机,构建了油画分类模型,其中提取的特征包括颜色和画笔特征。此外,基于人工智能技术和个性化教育理论,构建了个性化的智能油画教学框架。最后,评价了智能油画分类模型的性能,并阐述了个性化智能油画教学框架的内容。结果表明,当只提取画笔特征时,油画的平均分类准确率为90.25%。当仅提取颜色特征时,平均分类准确率超过89%。当提取两个特征时,油画分类模型的平均准确率达到94.03%。迭代二分法3、决策树C4.5和支持向量机的平均分类准确率为82.24%,83.57%,和94.03%。大小为50的历元数据的训练速度比大小为100的历元原始数据的训练速度快,但精度略有下降。个性化油画教学系统帮助学生根据自身情况调整学习计划,避免学习重复的内容,最终提高学生的学习效率。与其他研究相比,本研究获得了良好的油画分类模式和个性化的油画教育体系,对油画教学起到积极作用。本研究为高等艺术教育的发展奠定了基础。
    To improve the current oil painting teaching mode in Chinese universities, this study combines deep learning technology and artificial intelligence technology to explore oil painting teaching. Firstly, the research status of individualized education and related research on image classification based on brush features are analyzed. Secondly, based on a convolutional neural network, mathematical morphology, and support vector machine, the oil painting classification model is constructed, in which the extracted features include color and brush features. Moreover, based on artificial intelligence technology and individualized education theory, a personalized intelligent oil painting teaching framework is built. Finally, the performance of the intelligent oil painting classification model is evaluated, and the content of the personalized intelligent oil painting teaching framework is explained. The results show that the average classification accuracy of oil painting is 90.25% when only brush features are extracted. When only color features are extracted, the average classification accuracy is over 89%. When the two features are extracted, the average accuracy of the oil painting classification model reaches 94.03%. Iterative Dichotomiser3, decision tree C4.5, and support vector machines have an average classification accuracy of 82.24%, 83.57%, and 94.03%. The training speed of epochs data with size 50 is faster than that of epochs original data with size 100, but the accuracy is slightly decreased. The personalized oil painting teaching system helps students adjust their learning plans according to their conditions, avoid learning repetitive content, and ultimately improve students\' learning efficiency. Compared with other studies, this study obtains a good oil painting classification model and a personalized oil painting education system that plays a positive role in oil painting teaching. This study has laid the foundation for the development of higher art education.
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  • 文章类型: Journal Article
    背景:系统综述(SRs)正在加速发布。决策者可能很难在同一主题的多个SR之间进行比较和选择。我们的目标是了解医疗保健决策者(例如,从业者,政策制定者,研究人员)使用SR为决策提供信息,并探索拟议的人工智能(AI)工具的潜在作用,以协助进行关键评估和选择SR。
    方法:我们开发了一项包含21个开放式和封闭式问题的调查。我们遵循知识翻译计划,通过社交媒体和专业网络传播调查。
    结果:我们的调查回复率低于预期(已分发电子邮件的7.9%)。在684名受访者中,58.2%被认定为研究人员,37.1%作为从业者,学生占19.2%,决策者占13.5%。受访者经常寻找SR(97.1%)作为决策的证据来源。他们经常(97.9%)在他们感兴趣的给定主题上发现多个SR。刚刚超过一半(50.8%)的人努力在多个人中选择最值得信赖的SR。这些困难与缺乏时间有关(55.2%),或由于SRs的方法学质量不同而难以比较(54.2%),结果和结论的差异(49.7%)或纳入研究的变异(44.6%)。受访者根据与他们感兴趣的问题的相关性比较了SR,方法学质量,和最近的SR搜索。大多数受访者(87.0%)对AI工具感兴趣,以帮助评估和比较SR。
    结论:鉴于使用SR证据的已识别障碍,一种人工智能工具,用于方便比较SR的相关性,搜索和方法学质量,可以帮助用户有效地在SR中进行选择并做出医疗保健决策。
    BACKGROUND: Systematic reviews (SRs) are being published at an accelerated rate. Decision-makers may struggle with comparing and choosing between multiple SRs on the same topic. We aimed to understand how healthcare decision-makers (eg, practitioners, policymakers, researchers) use SRs to inform decision-making and to explore the potential role of a proposed artificial intelligence (AI) tool to assist in critical appraisal and choosing among SRs.
    METHODS: We developed a survey with 21 open and closed questions. We followed a knowledge translation plan to disseminate the survey through social media and professional networks.
    RESULTS: Our survey response rate was lower than expected (7.9% of distributed emails). Of the 684 respondents, 58.2% identified as researchers, 37.1% as practitioners, 19.2% as students and 13.5% as policymakers. Respondents frequently sought out SRs (97.1%) as a source of evidence to inform decision-making. They frequently (97.9%) found more than one SR on a given topic of interest to them. Just over half (50.8%) struggled to choose the most trustworthy SR among multiple. These difficulties related to lack of time (55.2%), or difficulties comparing due to varying methodological quality of SRs (54.2%), differences in results and conclusions (49.7%) or variation in the included studies (44.6%). Respondents compared SRs based on the relevance to their question of interest, methodological quality, and recency of the SR search. Most respondents (87.0%) were interested in an AI tool to help appraise and compare SRs.
    CONCLUSIONS: Given the identified barriers of using SR evidence, an AI tool to facilitate comparison of the relevance of SRs, the search and methodological quality, could help users efficiently choose among SRs and make healthcare decisions.
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  • 文章类型: Journal Article
    目的:本研究旨在使用基于人工智能(AI)的彩色眼底照片(CFP)分析,定量评估远视儿童视神经乳头和视网膜血管参数与年龄和等效球面屈光度(SER)的关系。
    方法:这项横断面研究包括324名年龄在3-12岁的远视儿童。将参与者分为低远视(SER0.5D至2.0D)和中度至高度远视(SER≥2.0D)组。眼底参数,如视盘面积和平均血管直径,使用AI自动和定量检测。单变量分析中的显著变量(p<0.05)包括在逐步多元线性回归中。
    结果:总体而言,包括324名儿童,低172和中至高远视152。中位视盘面积和血管直径分别为1.42mm2和65.09µm,分别。高度远视儿童的上神经视网膜边缘(NRR)宽度和血管直径均大于低,中度远视儿童。在单变量分析中,轴向长度与较小的上NRR宽度显着相关(β=-3.030,p<0.001),更小的时间NRR宽度(β=-1.469,p=0.020)和更小的血管直径(β=-0.076,p<0.001)。视盘面积和垂直盘直径随年龄的变化呈轻度负相关。
    结论:基于AI的CFP分析显示,高度远视儿童的平均血管直径较大,但垂直杯盘比小于低远视儿童。这表明AI可以提供远视儿童眼底参数的定量数据。
    OBJECTIVE: This study aimed to quantitatively evaluate optic nerve head and retinal vascular parameters in children with hyperopia in relation to age and spherical equivalent refraction (SER) using artificial intelligence (AI)-based analysis of colour fundus photographs (CFP).
    METHODS: This cross-sectional study included 324 children with hyperopia aged 3-12 years. Participants were divided into low hyperopia (SER+0.5 D to+2.0 D) and moderate-to-high hyperopia (SER≥+2.0 D) groups. Fundus parameters, such as optic disc area and mean vessel diameter, were automatically and quantitatively detected using AI. Significant variables (p<0.05) in the univariate analysis were included in a stepwise multiple linear regression.
    RESULTS: Overall, 324 children were included, 172 with low and 152 with moderate-to-high hyperopia. The median optic disc area and vessel diameter were 1.42 mm2 and 65.09 µm, respectively. Children with high hyperopia had larger superior neuroretinal rim (NRR) width and larger vessel diameter than those with low and moderate hyperopia. In the univariate analysis, axial length was significantly associated with smaller superior NRR width (β=-3.030, p<0.001), smaller temporal NRR width (β=-1.469, p=0.020) and smaller vessel diameter (β=-0.076, p<0.001). A mild inverse correlation was observed between the optic disc area and vertical disc diameter with age.
    CONCLUSIONS: AI-based CFP analysis showed that children with high hyperopia had larger mean vessel diameter but smaller vertical cup-to-disc ratio than those with low hyperopia. This suggests that AI can provide quantitative data on fundus parameters in children with hyperopia.
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  • 文章类型: Journal Article
    背景:该研究旨在确定与CVD相关的最关键的参数,并采用新颖的数据集成细化程序来揭示这些参数的最佳模式,这可以导致高预测精度。
    结果:总共收集了369名患者的数据,281名患有CVD或有发展风险的患者,与88个其他健康的人相比。在281名心血管疾病或高危患者中,53例被诊断为冠状动脉疾病(CAD),16患有终末期肾病,47例新诊断为2型糖尿病和92例慢性炎症性疾病(21类风湿性关节炎,41牛皮癣,30血管炎)。使用基于人工智能的算法分析数据,其主要目的是识别定义CVD的参数的最佳模式。该研究强调了使用DERGA和ExtraTrees算法识别心血管疾病可能性的六参数组合的有效性。这些参数,按重要性排序,包括血小板衍生的微囊泡(PMV),高血压,年龄,吸烟,血脂异常,身体质量指数(BMI)。内皮和红细胞MV,与糖尿病一起是最不重要的预测因素。此外,达到的最高预测精度为98.64%。值得注意的是,单独使用PMV可以获得91.32%的准确率,而采用所有十个参数的最优模型,得到的预测精度为0.9783(97.83%)。
    结论:我们的研究显示了DERGA的疗效,一种创新的数据集成细化贪婪算法。DERGA加速评估个体发生CVD的风险,允许早期诊断,显著减少所需实验室测试的数量,并优化资源利用率。此外,它有助于确定对评估CVD敏感性至关重要的最佳参数,从而增强我们对潜在机制的理解。
    BACKGROUND: The study aimed to determine the most crucial parameters associated with CVD and employ a novel data ensemble refinement procedure to uncover the optimal pattern of these parameters that can result in a high prediction accuracy.
    RESULTS: Data were collected from 369 patients in total, 281 patients with CVD or at risk of developing it, compared to 88 otherwise healthy individuals. Within the group of 281 CVD or at-risk patients, 53 were diagnosed with coronary artery disease (CAD), 16 with end-stage renal disease, 47 newly diagnosed with diabetes mellitus 2 and 92 with chronic inflammatory disorders (21 rheumatoid arthritis, 41 psoriasis, 30 angiitis). The data were analyzed using an artificial intelligence-based algorithm with the primary objective of identifying the optimal pattern of parameters that define CVD. The study highlights the effectiveness of a six-parameter combination in discerning the likelihood of cardiovascular disease using DERGA and Extra Trees algorithms. These parameters, ranked in order of importance, include Platelet-derived Microvesicles (PMV), hypertension, age, smoking, dyslipidemia, and Body Mass Index (BMI). Endothelial and erythrocyte MVs, along with diabetes were the least important predictors. In addition, the highest prediction accuracy achieved is 98.64%. Notably, using PMVs alone yields a 91.32% accuracy, while the optimal model employing all ten parameters, yields a prediction accuracy of 0.9783 (97.83%).
    CONCLUSIONS: Our research showcases the efficacy of DERGA, an innovative data ensemble refinement greedy algorithm. DERGA accelerates the assessment of an individual\'s risk of developing CVD, allowing for early diagnosis, significantly reduces the number of required lab tests and optimizes resource utilization. Additionally, it assists in identifying the optimal parameters critical for assessing CVD susceptibility, thereby enhancing our understanding of the underlying mechanisms.
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  • 文章类型: Journal Article
    人工智能(AI)技术在科学研究中的应用大大提高了效率和准确性,但也引入了新形式的学术不端行为,例如使用AI算法进行数据制造和文本抄袭。这些做法危及研究完整性,并可能误导科学方向。这项研究解决了这些挑战,强调学术界需要加强道德规范,提高研究人员资格,建立严格的审查机制。确保负责和透明的研究过程,我们建议采取以下具体关键行动:制定和执行全面的人工智能研究完整性指南,其中包括在数据分析和发布中使用人工智能的明确协议,确保人工智能辅助研究的透明度和问责制。为研究人员实施强制性AI道德和诚信培训,旨在促进对潜在人工智能滥用的深入理解,并促进伦理研究实践。建立国际合作框架,促进最佳实践交流和制定人工智能研究的统一伦理标准。保护研究完整性对于维护公众对科学的信任至关重要,使这些建议迫切需要科学界的考虑和行动。
    The application of artificial intelligence (AI) technologies in scientific research has significantly enhanced efficiency and accuracy but also introduced new forms of academic misconduct, such as data fabrication and text plagiarism using AI algorithms. These practices jeopardize research integrity and can mislead scientific directions. This study addresses these challenges, underscoring the need for the academic community to strengthen ethical norms, enhance researcher qualifications, and establish rigorous review mechanisms. To ensure responsible and transparent research processes, we recommend the following specific key actions: Development and enforcement of comprehensive AI research integrity guidelines that include clear protocols for AI use in data analysis and publication, ensuring transparency and accountability in AI-assisted research. Implementation of mandatory AI ethics and integrity training for researchers, aimed at fostering an in-depth understanding of potential AI misuses and promoting ethical research practices. Establishment of international collaboration frameworks to facilitate the exchange of best practices and development of unified ethical standards for AI in research. Protecting research integrity is paramount for maintaining public trust in science, making these recommendations urgent for the scientific community consideration and action.
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  • 文章类型: Journal Article
    知识图谱的作用包括表示,组织,检索,推理,和知识的应用,为人工智能系统和应用提供丰富而强大的认知基础。当我们学习新事物时,发现一些旧信息是错误的,看到正在发生的变化和进步,并采用新的技术标准,我们需要更新知识图。然而,在某些环境中,最初的知识是无法知道的。例如,我们不能访问软件的完整代码,即使我们买了它。在这种情况下,有没有办法在没有先验知识的情况下更新知识图谱?在本文中,我们正在调查在Dalal修订运算符的框架内是否有解决这种情况的方法。我们首先证明,在这种环境中找到最优解是一个强NP完全问题。为此,我们提出了两种算法:Flaccid_search和Tight_search,有不同的条件,并且我们已经证明了这两种算法都可以找到所需的结果。
    The role of knowledge graph encompasses the representation, organization, retrieval, reasoning, and application of knowledge, providing a rich and robust cognitive foundation for artificial intelligence systems and applications. When we learn new things, find out that some old information was wrong, see changes and progress happening, and adopt new technology standards, we need to update knowledge graphs. However, in some environments, the initial knowledge cannot be known. For example, we cannot have access to the full code of a software, even if we purchased it. In such circumstances, is there a way to update a knowledge graph without prior knowledge? In this paper, We are investigating whether there is a method for this situation within the framework of Dalal revision operators. We first proved that finding the optimal solution in this environment is a strongly NP-complete problem. For this purpose, we proposed two algorithms: Flaccid_search and Tight_search, which have different conditions, and we have proved that both algorithms can find the desired results.
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  • 文章类型: Journal Article
    背景:建立基于深度学习的自动软组织分析模型,对正畸面部照片进行界标检测和测量计算,以实现对软组织的更全面的定量评估。
    方法:共收集了578张正畸患者的正面照片和450张侧面照片来构建数据集。所有图像均由两名正畸医生手动注释,具有43个正面图像标志和17个侧面图像标志。建立了自动地标检测模型,由一个高分辨率的网络组成,基于深度可分离卷积的特征融合模块,和基于像素混洗的预测模型。定义了正面图像的十个测量值和横向图像的八个测量值。测试集用于评估模型性能,分别。计算并统计分析标志的平均径向误差和测量误差,以评估其可靠性。
    结果:正面图像中界标的平均径向误差为14.44±17.20像素,侧面图像中界标的平均径向误差为13.48±17.12像素。除了中面部-下面部高度指数外,模型预测和手动注释测量值之间没有统计学上的显着差异。总共14次测量具有高一致性。
    结论:基于深度学习,我们建立了正畸面部照片的自动软组织分析模型,该模型可以在进行全面的软组织测量的同时自动检测43个正面图像标志和17个侧面图像标志。该模型可以帮助正畸医生进行有效和准确的定量软组织评估,以用于临床应用。
    BACKGROUND: To establish the automatic soft-tissue analysis model based on deep learning that performs landmark detection and measurement calculations on orthodontic facial photographs to achieve a more comprehensive quantitative evaluation of soft tissues.
    METHODS: A total of 578 frontal photographs and 450 lateral photographs of orthodontic patients were collected to construct datasets. All images were manually annotated by two orthodontists with 43 frontal-image landmarks and 17 lateral-image landmarks. Automatic landmark detection models were established, which consisted of a high-resolution network, a feature fusion module based on depthwise separable convolution, and a prediction model based on pixel shuffle. Ten measurements for frontal images and eight measurements for lateral images were defined. Test sets were used to evaluate the model performance, respectively. The mean radial error of landmarks and measurement error were calculated and statistically analysed to evaluate their reliability.
    RESULTS: The mean radial error was 14.44 ± 17.20 pixels for the landmarks in the frontal images and 13.48 ± 17.12 pixels for the landmarks in the lateral images. There was no statistically significant difference between the model prediction and manual annotation measurements except for the mid facial-lower facial height index. A total of 14 measurements had a high consistency.
    CONCLUSIONS: Based on deep learning, we established automatic soft-tissue analysis models for orthodontic facial photographs that can automatically detect 43 frontal-image landmarks and 17 lateral-image landmarks while performing comprehensive soft-tissue measurements. The models can assist orthodontists in efficient and accurate quantitative soft-tissue evaluation for clinical application.
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  • 文章类型: Journal Article
    本文总结了2003年至2023年过去20年用于小儿脑瘫(CP)康复设备的刺激方法的研究进展。我们还为基于人工智能的康复设备的创新研发提供思路。
    通过一定的搜索策略,在中国国家知识网络数据库(CNKI)中搜索关键词,万方数据库知识服务平台,重庆贵宾信息服务,PubMed,WebofScience,科克伦,ScienceDirect,Medline,Embase,IEEE数据库。共检索到相关文章3049篇,包括49篇文章,提到康复设备的研发。我们排除了非特定于CP儿童的文章,是重复的或不相关的文献,缺少数据,全文不可用,这篇文章没有描述与康复设备一起用于CP儿童的刺激方法,不是中文和英文,以及评论和评论的类型。
    物理刺激是CP儿童康复设备的主要刺激方式。力刺激是物理刺激的主要方式,有17篇文章验证了基于力刺激的设备的临床疗效。
    对小儿脑瘫康复设备的刺激模式的研究很可能集中在模拟称为“推拿手法”的中药的力量上。“当这种方法与人工智能和个性化方向相结合时,我们相信这将为将来开发CP儿童的新型疗法奠定基础。
    UNASSIGNED: This paper summarizes the research progress into stimulation methods used in rehabilitation equipment for pediatric cerebral palsy (CP) for the past 20 years from 2003 to 2023. We also provide ideas for innovative research and development of artificial intelligence-based rehabilitation equipment.
    UNASSIGNED: Through a certain search strategy, Keywords are searched in the China National Knowledge Network Database (CNKI), the Wanfang Database knowledge service platform, the Chongqing VIP information service, PubMed, Web of Science, Cochrane, ScienceDirect, Medline, Embase, and IEEE database. A total of 3,049 relevant articles were retrieved, and 49 articles were included that mentioned research and development of rehabilitation equipment. We excluded articles that were not specific to children with CP, were duplicated or irrelevant literature, were missing data, the full article was not available, the article did not describe the method of stimulation used with the rehabilitation equipment on children with CP, were not Chinese and English, and were the types of reviews and commentaries.
    UNASSIGNED: Physical stimulation is the main stimulation method of rehabilitation equipment for children with CP. Force stimulation is the main mode of physical stimulation, and there are 17 articles that have verified the clinical efficacy of force stimulation-based equipment.
    UNASSIGNED: Research on the stimulation mode of pediatric cerebral palsy rehabilitation equipment is likely to focus on simulating the force of the Chinese medicine called \"tuina manipulation.\" When this method is combined with artificial intelligence and personalized direction we believe this will lay the foundation for future development of a novel therapy for children with CP.
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  • 文章类型: Journal Article
    慢性鼻窦炎(CRS)是累及鼻腔鼻窦的具有不同病理生理机制及临床治疗反应的异质性疾病。近年来,人工智能(AI)技术在医学领域蓬勃发展,基于大数据与AI技术的影像组学、病理组学等研究在CRS的影像识别、辅助诊断、内型鉴定、预后预测等诸多方面有了新的探索和应用,在CRS的精准诊断及个体化治疗方面具有巨大潜力和应用价值。本文按照诊疗环节就AI在CRS中的应用现状进行简要总结,并对其未来发展趋势进行展望。.
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  • 文章类型: Journal Article
    将查询的单个动物或植物分配给其派生种群是与生物谱系相关的各种应用中的首要任务。这样的努力通常依赖于系统发育框架下的短DNA序列。当推断的种群来源是模糊的系统发育结构时,这些方法自然会显示出约束,一种需要更多信息遗传信号的情况。在具有成本效益的全基因组序列生产和人工智能方面的最新进展创造了一个前所未有的机会来追踪基本上任何给定个体的人口起源,只要基因组参考数据是全面和标准化的。这里,我们开发了一种卷积神经网络方法来使用基因组SNP识别种群起源。三个经验数据集(一只亚洲蜜蜂,一只红火蚂蚁,和一个鸡数据集)和两个模拟种群用于概念证明。性能测试表明,该方法能够准确识别查询个体的家谱来源,成功率从>93%到100%不等。我们进一步表明,模型的准确性可以通过FST过滤来改善信息站点来显着提高。我们的方法对于与批次大小和时期相关的配置是稳健的,而模型学习受益于设置适当的预设学习率。此外,我们解释了关键站点对算法可解释性和可信度的重要性评分,这在很大程度上被忽视了。我们预计,通过将基因组学和深度学习相结合,我们的方法将在涉及自然资源的保护和管理应用中看到广泛的潜力,入侵害虫和杂草,和野生动物产品的非法交易。
    Assigning a query individual animal or plant to its derived population is a prime task in diverse applications related to organismal genealogy. Such endeavors have conventionally relied on short DNA sequences under a phylogenetic framework. These methods naturally show constraints when the inferred population sources are ambiguously phylogenetically structured, a scenario demanding substantially more informative genetic signals. Recent advances in cost-effective production of whole-genome sequences and artificial intelligence have created an unprecedented opportunity to trace the population origin for essentially any given individual, as long as the genome reference data are comprehensive and standardized. Here, we developed a convolutional neural network method to identify population origins using genomic SNPs. Three empirical datasets (an Asian honeybee, a red fire ant, and a chicken datasets) and two simulated populations are used for the proof of concepts. The performance tests indicate that our method can accurately identify the genealogy origin of query individuals, with success rates ranging from  93 % to 100 %. We further showed that the accuracy of the model can be significantly increased by refining the informative sites through FST filtering. Our method is robust to configurations related to batch sizes and epochs, whereas model learning benefits from the setting of a proper preset learning rate. Moreover, we explained the importance score of key sites for algorithm interpretability and credibility, which has been largely ignored. We anticipate that by coupling genomics and deep learning, our method will see broad potential in conservation and management applications that involve natural resources, invasive pests and weeds, and illegal trades of wildlife products.
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