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Teaching Reform and Practice of Statistics Courses in Big Data Management and Applications Major in the Context of New Quality Productivity
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作者 Tinghui Huang Junchao Dong Liang Min 《Journal of Contemporary Educational Research》 2025年第2期23-31,共9页
In the new era,the impact of emerging productive forces has permeated every sector of industry.As the core production factor of these forces,data plays a pivotal role in industrial transformation and social developmen... In the new era,the impact of emerging productive forces has permeated every sector of industry.As the core production factor of these forces,data plays a pivotal role in industrial transformation and social development.Consequently,many domestic universities have introduced majors or courses related to big data.Among these,the Big Data Management and Applications major stands out for its interdisciplinary approach and emphasis on practical skills.However,as an emerging field,it has not yet accumulated a robust foundation in teaching theory and practice.Current instructional practices face issues such as unclear training objectives,inconsistent teaching methods and course content,insufficient integration of practical components,and a shortage of qualified faculty-factors that hinder both the development of the major and the overall quality of education.Taking the statistics course within the Big Data Management and Applications major as an example,this paper examines the challenges faced by statistics education in the context of emerging productive forces and proposes corresponding improvement measures.By introducing innovative teaching concepts and strategies,the teaching system for professional courses is optimized,and authentic classroom scenarios are recreated through illustrative examples.Questionnaire surveys and statistical analyses of data collected before and after the teaching reforms indicate that the curriculum changes effectively enhance instructional outcomes,promote the development of the major,and improve the quality of talent cultivation. 展开更多
关键词 New quality productivity Big data Compound talents statistics course Teaching examples
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Exploration on the Ideological and Political Construction Path of the“Probability Theory and Mathematical Statistics”Course
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作者 Qianlong Dang Xiaofeng Yang Wenliang Wu 《Journal of Contemporary Educational Research》 2025年第10期85-91,共7页
This paper focuses on the ideological and political construction of the course“Probability Theory and Mathematical Statistics.”Aiming at the current situation in teaching where emphasis is placed on knowledge impart... This paper focuses on the ideological and political construction of the course“Probability Theory and Mathematical Statistics.”Aiming at the current situation in teaching where emphasis is placed on knowledge imparting while value guidance is neglected,and combined with the requirements of ideological and political education policies in the new era,this paper explores the integration path between professional courses and ideological and political education.Through literature analysis,case comparison,and empirical research,the study proposes a systematic implementation plan covering the design of teaching objectives,the reconstruction of teaching content,and the optimization of the evaluation system.The purpose is to cultivate students’sense of social responsibility and innovative awareness by excavating the ideological and political elements in mathematics.The research results provide practical reference for colleges and universities to deepen the reform of ideological and political education in courses,and promote the implementation of the fundamental task of fostering virtue through education in STEM education. 展开更多
关键词 Probability theory Mathematical statistics Ideological and political education in courses Fostering virtue through education Construction path
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Effect Evaluation of CBL Combined with Rain Classroom Teaching Method in Medical Statistics 被引量:3
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作者 Man Luo Xiaofang Zhang Wei Liu 《Open Journal of Applied Sciences》 2024年第5期1204-1213,共10页
Objective: To explore the application effect of CBL combined with rain classroom teaching method in medical statistics courses. Methods: The undergraduate students of medical imaging technology in 2019 and 2020 in a u... Objective: To explore the application effect of CBL combined with rain classroom teaching method in medical statistics courses. Methods: The undergraduate students of medical imaging technology in 2019 and 2020 in a university were selected as the research objects. A cluster sampling method was used to select 79 undergraduate students from 2019 in the control group and 75 undergraduate students from 2020 in the experimental group. Traditional teaching method and CBL combined with rain classroom teaching method was used in the control group and experimental group respectively. The final examination scores of the two groups were compared. In experimental group, the correlation between the average score in the rain classroom and the final examination score was tested, and the teaching effect was evaluated. Results: The average score of final examination in experimental group and control group was 79.13 ± 10.32 points and 71.54 ± 14.752 points, respectively, which had a statistically significant difference (Z = 2.586, P = 0.012);the final examination scores of the students in the experimental group were positively correlated with the average scores of the rain classroom (r = 0.372, P = 0.001), and the proportion of satisfaction in the experimental group was 94.7%. Conclusion: The CBL combined with rain classroom teaching method can improve the teaching effectiveness of medical statistics courses. 展开更多
关键词 Rain Classroom CBL Medical statistics
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Load Statistics Priority Random Access Technology Based on Air-Space-Ground Integrated Network
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作者 Enze Li Hao Huan +1 位作者 Jingyu Wang Kunshan Yang 《Journal of Beijing Institute of Technology》 EI CAS 2024年第6期493-506,共14页
In today's world where everything is interconnected, air-space-ground integrated networks have become a current research hotspot due to their characteristics of high, long and wide area coverage. Given the constan... In today's world where everything is interconnected, air-space-ground integrated networks have become a current research hotspot due to their characteristics of high, long and wide area coverage. Given the constantly changing and dynamic characteristics of air and space networks, along with the sheer number and complexity of access nodes involved, the process of rapid networking presents substantial challenges. In order to achieve rapid and dynamic networking of air-space-ground integrated networks, this paper focuses on the study of methods for large-scale nodes to randomly access satellites. This paper utilizes a cross-layer design methodology to enhance the access success probability by jointly optimizing the physical layer and medium access control(MAC) layer aspects. Load statistics priority random access(LSPRA) technology is proposed.Experiments show that when the number of nodes is greater than 1 000, this method can also ensure stable access performance, providing ideas for the design of air-space-ground integrated network access systems. 展开更多
关键词 air-space-ground integrated network random access satellite-to-ground statistics priority access success probability
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Lottery Numbers and Ordered Statistics
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作者 Kung-Kuen Tse 《Applied Mathematics》 2024年第4期287-291,共5页
The lottery has long captivated the imagination of players worldwide, offering the tantalizing possibility of life-changing wins. While winning the lottery is largely a matter of chance, as lottery drawings are typica... The lottery has long captivated the imagination of players worldwide, offering the tantalizing possibility of life-changing wins. While winning the lottery is largely a matter of chance, as lottery drawings are typically random and unpredictable. Some people use the lottery terminal randomly generates numbers for them, some players choose numbers that hold personal significance to them, such as birthdays, anniversaries, or other important dates, some enthusiasts have turned to statistical analysis as a means to analyze past winning numbers identify patterns or frequencies. In this paper, we use order statistics to estimate the probability of specific order of numbers or number combinations being drawn in future drawings. 展开更多
关键词 LOTTERY Order statistics Hypergeometric Distribution EXPECTATION UNIFORM
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Innovations and Challenges in Economic Census Methodology:A Study by the Bureau of Statistics
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作者 Suqing Li 《Proceedings of Business and Economic Studies》 2024年第5期145-150,共6页
The Bureau of Statistics has demonstrated a forward-looking strategic approach in its economic census.By leveraging dual innovations in technology and management,and incorporating modern technologies such as big data,... The Bureau of Statistics has demonstrated a forward-looking strategic approach in its economic census.By leveraging dual innovations in technology and management,and incorporating modern technologies such as big data,cloud computing,and the Internet of Things,it has deepened the reform of the census methodology.Additionally,the Bureau has built a multi-dimensional collaborative network that enhances international cooperation,departmental coordination,and public participation.This approach not only addresses the limitations of traditional statistical methods in a complex economic environment but also improves data quality and census efficiency,providing an accurate and reliable foundation for national economic decision-making. 展开更多
关键词 Economic census METHODOLOGY Bureau of statistics
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Research on the Application of PBL+SPOC Blended Teaching Model in Probability and Statistics Course
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作者 Hairong Li 《Journal of Contemporary Educational Research》 2024年第9期63-68,共6页
To cultivate talents with an exploratory spirit and practical skills in the era of information technology,it is imperative to reform teaching methods and approaches.In the teaching process of the Probability and Stati... To cultivate talents with an exploratory spirit and practical skills in the era of information technology,it is imperative to reform teaching methods and approaches.In the teaching process of the Probability and Statistics course,an application-oriented blended teaching model combining problem-based learning and small private online course was explored.By organizing and implementing online and offline teaching activities based on problem-based learning,a multidimensional process-oriented learning assessment system was established.Practice has shown that this model can effectively enhance classroom teaching effectiveness,benefiting the improvement of students’overall skills and mathematical literacy. 展开更多
关键词 Problem-based learning teaching method Blended learning Probability and statistics
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Integration of Ideological and Political Education into the Probability Theory and Mathematical Statistics Course:A Teaching Design Based on Estimation and Hypothesis Testing
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作者 Guangyu Li 《Journal of Contemporary Educational Research》 2024年第9期248-254,共7页
With the rapid development of higher education in China,colleges and universities are facing new challenges and impacts in talent training.Probability Theory and Mathematical Statistics is one of the important courses... With the rapid development of higher education in China,colleges and universities are facing new challenges and impacts in talent training.Probability Theory and Mathematical Statistics is one of the important courses in higher education for science and engineering majors and economics and management majors.Its critical role in cultivating students’thinking skills and improving their problem-solving skills is self-evident.Course ideological and political education construction is an important link in college talent training work.Combining ideological and political education with course teaching can help students establish correct value concepts and play a certain role in improving their comprehensive ability and quality.At present,the construction of ideological and political education in the Probability Theory and Mathematical Statistics course still faces some problems,mainly manifested in the lack of attention paid by teachers to course ideological and political education,insufficient exploitation of ideological and political elements,and the simplification of ideological and political education implementation methods.In order to comprehensively deepen the construction of course ideological and political education in line with the actual needs of Probability Theory and Mathematical Statistics course teaching,we should strengthen the construction of teacher teams,improve teachers’ability to carry out course ideological and political education,integrate educational resources,develop educational resources for ideological and political education,and innovate teaching methods to improve the overall effect of ideological and political education integration. 展开更多
关键词 Probability Theory and Mathematical statistics Course education Teaching strategy
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基于k-means算法的聚类个数确定方法改进 被引量:2
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作者 王丙参 王国长 魏艳华 《统计与决策》 北大核心 2025年第7期59-64,共6页
文章基于k-means算法探讨了最优聚类个数k*的确定方法:第一类是统计量方法;第二类是聚类算法不稳定性方法,即基于两次聚类结果间的距离,利用交叉验证、随机抽样取交集、自助法来构建聚类算法估计不稳定性指标,并根据投票、最小化均值方... 文章基于k-means算法探讨了最优聚类个数k*的确定方法:第一类是统计量方法;第二类是聚类算法不稳定性方法,即基于两次聚类结果间的距离,利用交叉验证、随机抽样取交集、自助法来构建聚类算法估计不稳定性指标,并根据投票、最小化均值方法确定k^(*)。数值模拟结果显示:在给定k^(*)的情况下,聚类结果与标签的距离或相似度可作为评价聚类结果的指标,为聚类算法评价提供了新的借鉴;基于k-means算法确定k^(*)的前提是数据集根据欧氏距离可明显分为几簇,相对而言,聚类算法不稳定性方法优于统计量方法;对于不稳定性指标,交叉验证估计方法与随机抽样取交集估计方法对抽样个数稳健,抽样个数依次建议略少于样本容量的1/3、80%;自助抽样估计方法由于利用了全部样本,因此效率更高;4种不稳定性指标没有显著差异,投票与最小化均值方法也没有显著差异。 展开更多
关键词 K-MEANS算法 聚类个数 统计量 不稳定性
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2024年世界城市轨道交通运营统计与分析综述 被引量:9
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作者 韩宝明 李卓一 +8 位作者 靳雨馨 鲁放 胡江枫 黄思齐 王丁宁 张植 高婕 封方威 桑雁翎 《都市快轨交通》 北大核心 2025年第1期1-12,共12页
参考国际上较为通行的统计标准,将城市轨道交通分为服务于城市的通勤铁路(市域(郊)铁路)和传统城市轨道交通,传统城市轨道交通分为地铁、轻轨和有轨电车三大类,对世界城轨交通运营现状进行统计。结果表明:截至2024年底,全球共有79个国... 参考国际上较为通行的统计标准,将城市轨道交通分为服务于城市的通勤铁路(市域(郊)铁路)和传统城市轨道交通,传统城市轨道交通分为地铁、轻轨和有轨电车三大类,对世界城轨交通运营现状进行统计。结果表明:截至2024年底,全球共有79个国家和地区的562座城市开通城市轨道交通,运营里程达到44730.14 km,其中地铁、轻轨和有轨电车分别占51.24%、10.43%和38.34%。截至2024年12月31日,中国(含港澳台)累计有65座城市开通运营轨道交通,运营里程达12844.57 km,其中中国内地运营里程12168.77 km。2023年,全球59个国家共188座城市累计运送客流713.78亿人次,平均负荷强度0.85万人次/(d·km),其中中国(含港澳台)地铁年客流量为318.10亿人次。我国城市轨道交通持续稳步发展,线网规模和客流规模继续居全球第一。全球共有54个国家和地区的233座城市开通通勤铁路,总里程达64195.23 km,中国(含港澳台)共有21座城市开通通勤铁路,运营里程达2974.40 km。通过分析国内外重点国家的线网规模及发展状况可推测,中国通勤铁路的建设以及不同网络之间的互联互通有着广阔的前景。 展开更多
关键词 世界城市轨道交通 线网规模 客流量 统计分析 通勤铁路
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利奈唑胺血液系统不良反应发生率及危险因素分析: 一项多中心队列研究 被引量:1
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作者 李雪莲 朱庆东 +9 位作者 马怡静 吐送江·买托合提 米日古丽·买托合提 王庆枫 马丽萍 初乃惠 聂文娟 林艳荣 李纬 王敬 《中国防痨杂志》 北大核心 2025年第6期719-726,共8页
目的:研究含利奈唑胺方案治疗耐多药/利福平耐药肺结核患者时血液系统不良反应的发生情况,探讨可能的危险因素。方法:研究纳入2023年5月至2024年5月就诊于我国三家不同地区医疗机构的耐多药/利福平耐药肺结核患者的研究队列,收集所有患... 目的:研究含利奈唑胺方案治疗耐多药/利福平耐药肺结核患者时血液系统不良反应的发生情况,探讨可能的危险因素。方法:研究纳入2023年5月至2024年5月就诊于我国三家不同地区医疗机构的耐多药/利福平耐药肺结核患者的研究队列,收集所有患者的人口学特征(年龄、性别、体质量等)、血液学检测结果(白细胞计数、血红蛋白、血小板计数等)、出现不良反应的时间及严重程度、抗结核治疗方案、治疗转归等信息。通过单因素分析和多因素logistic回归分析筛选高危因素。结果:利奈唑胺相关血液系统不良反应的发生率为45.5%(122/268),男性多于女性[59.8%(73/122)和40.2%(49/122)],40~59岁年龄组所占比例最高,为35.3%(43/122)。发生利奈唑胺相关血液系统不良反应的患者出现不良反应的时间为1~29周,中位数(四分位数)为13(12,24)周。16例(13.1%,16/122)患者出现白细胞减少,其中1级7例,2级8例,3级1例。111例(91.0%,111/122)患者出现贫血,其中1级45例,2级54例,3级12例。6例(4.9%,6/122)患者出现血小板减少,其中1级4例,2级1例,3级1例。11例(9.0%,11/122)患者同时出现贫血和白细胞减少;6例(4.9%,6/122)患者同时出现贫血和血小板减少;1例(0.8%,1/122)患者同时出现白细胞减少、贫血和血小板减少。所有患者均未发生出血性疾病。多因素logistic回归分析结果显示,治疗前血清白蛋白水平<35 g/L的耐多药/利福平耐药肺结核患者出现利奈唑胺相关血液系统不良反应是血清白蛋白水平≥35 g/L者的20.136倍(95%CI:4.843~83.714)。结论:利奈唑胺相关血液系统不良反应的发生率较高,多见于40~59岁中年人,男性多于女性,不良反应以贫血最为常见,治疗前血清白蛋白水平低者易发生利奈唑胺相关血液系统不良反应。 展开更多
关键词 利奈唑胺 结核 抗药性 毒性作用 因素分析 统计学 多中心研究
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义务教育数学课程“统计与概率”内容设置的国际比较研究——基于6个国家和地区义务教育数学课程标准 被引量:1
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作者 斯海霞 邵天添 时爱荣 《数学教育学报》 北大核心 2025年第1期57-63,共7页
选取6个国家和地区的义务教育数学课程标准为研究对象,从课程内容学习目标、课程内容选择与课程内容组织3方面比较分析“统计与概率”内容设置特征.研究发现该领域的素养发展目标分为侧重数据分析与信息技术运用两类;中国香港、中国台... 选取6个国家和地区的义务教育数学课程标准为研究对象,从课程内容学习目标、课程内容选择与课程内容组织3方面比较分析“统计与概率”内容设置特征.研究发现该领域的素养发展目标分为侧重数据分析与信息技术运用两类;中国香港、中国台湾以及新加坡的课程内容强调“数据描述”,中国内地则更重视“数据分析”;课程深度整体介于理解与掌握之间,中国内地深度最浅趋近理解水平;课程内容组织遵循儿童思维发展与学习路径,不仅重视统计意识的早期培养,亦注重在直观感知、定性理解的基础上定量认知概率.建议教学中借助媒体信息丰富统计图表,为学生创设经历现实情境下数据分析全过程机会,并融信息技术于数据分析过程,以提高学生数据解读与表达力,真实决策与推断力,全面发展信息素养. 展开更多
关键词 统计与概率 数学课程标准 比较研究
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多模型自适应统计迭代重建算法在高原地区儿童超低剂量胸部CT检查中的应用 被引量:2
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作者 王先涛 白瑞婷 +3 位作者 次旦旺久 索朗尼玛 尼玛卓嘎 苏佰燕 《中国医学科学院学报》 北大核心 2025年第1期29-34,共6页
目的探讨多模型自适应统计迭代重建(ASiR-Ⅴ)算法在高原地区儿童超低剂量胸部CT检查中的应用价值。方法收集西藏自治区人民医院行胸部CT检查的儿童患者,根据扫描条件分为两组:A组采用管电压100 kV,并进行ASiR-Ⅴ50%重建;B组采用管电压80... 目的探讨多模型自适应统计迭代重建(ASiR-Ⅴ)算法在高原地区儿童超低剂量胸部CT检查中的应用价值。方法收集西藏自治区人民医院行胸部CT检查的儿童患者,根据扫描条件分为两组:A组采用管电压100 kV,并进行ASiR-Ⅴ50%重建;B组采用管电压80 kV,分别进行ASiR-Ⅴ0(B1组)和ASiR-Ⅴ50%(B2组)重建,对各组图像质量进行主观及客观评分,比较各组的辐射剂量及图像质量。结果A组和B组容积CT剂量指数分别为(2.33±0.62)、(0.86±0.01)mGy,两组比较差异有统计学意义(P<0.001),剂量长度乘积分别为(65.01±25.12)、(23.55±3.38)mGy·cm,两组比较差异有统计学意义(P<0.001)。肺窗B2组双上肺、双中肺噪声值低于B1组,但均高于A组(P均<0.001);各组肺窗图像质量评分比较差异无统计学意义(P均>0.05)。纵隔窗A组、B1组和B2组升主动脉(P=0.538)和肝脏CT值(P=0.175)比较差异无统计学意义,B2组升主动脉和肝脏信噪比(P均<0.001)、对比噪声比(P均<0.001)均高于B1组,且低于A组(P均<0.05);纵隔窗图像质量评分A组高于B2组,且均高于B1组(P均<0.001)。结论ASiR-Ⅴ联合低管电压在有效降低辐射剂量的同时,能够保障高原地区儿童胸部CT的图像质量。 展开更多
关键词 自适应统计迭代重建算法 儿童 低剂量 多层螺旋CT
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基于地理加权建模技术的武汉市土地资源承载力评价研究 被引量:3
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作者 卢宾宾 田小溪 +2 位作者 秦思娴 史祎琳 李建松 《武汉大学学报(信息科学版)》 北大核心 2025年第3期430-438,共9页
在中国全面推进生态文明建设的背景下,资源环境承载力监测评价研究具有重要的理论和实践意义。随着城镇化进程的高速推进,城市土地资源逐步成为城市发展的核心资源要素,吸引了众多学者的关注。但在以往研究中,评价分析方法多以宏观的全... 在中国全面推进生态文明建设的背景下,资源环境承载力监测评价研究具有重要的理论和实践意义。随着城镇化进程的高速推进,城市土地资源逐步成为城市发展的核心资源要素,吸引了众多学者的关注。但在以往研究中,评价分析方法多以宏观的全局统计为主,难以满足城市尺度下进行精细尺度分析评价的需求,也无法体现评价指标及其关系所呈现的空间异质性或非平稳性特征。以武汉市土地资源承载力评价为例,采用地理加权汇总统计、地理加权主成分分析和地理加权回归分析等基础地理加权建模技术实现了集成评价、影响要素和成因分析,更加合理地阐释了武汉市建成区土地承载压力分布及其影响要素。结果证明,地理加权建模技术框架能够实现城市土地资源承载力精细化评价,从全新的视角实现单项指标分析与综合评价,而随着地理加权建模技术的拓展与演化,分析层次更加丰富,为更多场景与领域的应用提供可行的技术方案。 展开更多
关键词 土地资源 土地承载力 空间统计 空间异质性 地理加权建模
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统计学、数据科学、人工智能关系辨析 被引量:1
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作者 李金昌 《浙江社会科学》 北大核心 2025年第9期14-23,155,共11页
在数字化时代,统计学、数据科学、人工智能紧密交织在一起,共同推动各领域发展。本文从研究对象、研究思维与方法、研究应用及发展趋势等方面初步剖析了三者的关系。三者都聚焦于数据,但侧重点有所不同。统计学着重于研究如何收集、分... 在数字化时代,统计学、数据科学、人工智能紧密交织在一起,共同推动各领域发展。本文从研究对象、研究思维与方法、研究应用及发展趋势等方面初步剖析了三者的关系。三者都聚焦于数据,但侧重点有所不同。统计学着重于研究如何收集、分析与推断数据,为数据分析提供方法论;数据科学以数据全生命周期为对象,研究如何建立系统性的数据分析框架以支持决策;人工智能则聚焦于通过数据处理去模拟人类智能,研究如何将数据转化为行为规则。三者在未来将持续融合创新,推动数据要素发挥更大作用,共同应对复杂问题,为人类社会发展创造更多价值。 展开更多
关键词 统计学 数据科学 人工智能
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我国粉末涂料与涂装行业运行分析 被引量:4
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作者 吴向平 宁波 +3 位作者 李馨 邓凯 王婉婧 徐萍 《涂层与防护》 2025年第2期36-38,39-43,62,共9页
以中国化工学会涂料涂装专业委员会和全国涂料工业信息中心的行业统计数据、国家统计局发布的数据及行业调研为基础,阐述了2023年我国粉末涂料及其原料、制粉设备以及涂装领域运行概况,提出了行业未来发展建议。
关键词 粉末涂料 行业调研 统计数据 固体体系 涂装工艺 专利
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关于我国兽医器械质量安全风险监测工作的思考 被引量:1
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作者 于遵波 张旭 +6 位作者 王谷怡 张晶声 张志轩 杨晶 兰莹 周贺 刘燕 《中国兽药杂志》 2025年第7期30-34,共5页
兽医器械产品质量安全风险监测是国务院兽医行政管理部门掌握兽医器械整体质量状况,进行科学决策的前提和重要手段。文章总结了该项工作多年来取得的成果,对监测数据进行了统计分析,为行业立法工作提供主要参考。
关键词 兽医器械 风险监测 监测数据 统计分析 立法
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2024年美国FDA新批准兽药汇总与统计分析 被引量:1
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作者 孙雷 王亦琳 +3 位作者 叶妮 李丹 徐倩 汪霞 《中国兽药杂志》 2025年第4期32-39,共8页
本文汇总了2024年美国FDA新批准(原始批准和补充批准)的兽药,并从批准动物和批准用途等方面进行统计分析,对部分新兽药进行简单介绍,希望能对我国新兽药研发和评审工作有一定的指导意义。
关键词 2024年 FDA 新批准兽药 汇总 统计分析
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河道治理工程潜在生命效益量化方法 被引量:1
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作者 葛巍 李浩东 +3 位作者 张亚东 孙向鹏 周延卫 李宗坤 《郑州大学学报(工学版)》 北大核心 2025年第4期114-120,共7页
针对生命价值难量化导致河道治理工程潜在生命效益被忽略的问题,提出了河道治理工程防洪效益中潜在生命效益量化方法。结合洪水生命损失,引入收入弹性系数法计算统计生命价值,构建洪水生命损失货币价值量化函数;对水利工程防洪效益计算... 针对生命价值难量化导致河道治理工程潜在生命效益被忽略的问题,提出了河道治理工程防洪效益中潜在生命效益量化方法。结合洪水生命损失,引入收入弹性系数法计算统计生命价值,构建洪水生命损失货币价值量化函数;对水利工程防洪效益计算的频率法进行简化,提出了基于统计生命价值的河道治理工程潜在生命效益量化方法。将该方法应用于贾鲁河综合治理工程,结果表明:工程多年平均潜在生命效益为3073.54万元/a,其中中牟县占比39.5%,周口市川汇区、西华县、扶沟县和尉氏县城区共占比38.7%,沿线非城镇区域占比21.8%,河道治理工程的潜在生命效益主要在城区和人口密集区域。通过量化防洪效益中潜在生命效益,完善了水利工程防洪效益计算理论及方法。 展开更多
关键词 河道治理工程 统计生命价值 潜在生命效益 生命损失 频率法
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不同教学模式在“医学统计学”课程中的应用及评价 被引量:1
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作者 苏春娟 陈冯梅 《教育教学论坛》 2025年第16期129-132,共4页
通过传统授课、线上授课和线上线下混合式授课的方法,对医学检验专业学生“医学统计学”课程学习效果进行比较,以评价三种授课模式的教学效果和学生满意度。以苏州卫生职业技术学院2019级160名、2020级155名和2021级166名医学检验专科... 通过传统授课、线上授课和线上线下混合式授课的方法,对医学检验专业学生“医学统计学”课程学习效果进行比较,以评价三种授课模式的教学效果和学生满意度。以苏州卫生职业技术学院2019级160名、2020级155名和2021级166名医学检验专科生为研究对象,分别安排传统授课、线上授课和线上线下混合式授课,三组学生采用相同教材、相同课时、相同的教学标准,并且由同一位资深教师授课,授课全部完成后依据试卷得分和问卷调查的结果对三种教学效果进行评价。线上线下混合式教学效果学生总体满意度高于传统授课模式和线上授课模式,且差异有统计学意义(p<0.05),卷面总得分、单选题、案例分析题线上线下混合式教学高于传统授课和线上授课,且差异有统计学意义(p<0.01);传统授课模式在名词解释方面得分高于线上授课模式和线上线下混合授课模式,且差异有统计学意义(p<0.01)。学生普遍认可线上线下混合教学模式,混合教学模式有利于培养学生的创新思维、统计思维、分析问题和解决问题的能力,达成教学目标。 展开更多
关键词 线上线下 混合式教学 医学统计学
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