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聊天机器人健康建议研究报告指南:CHART声明案例解读 认领 引用
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作者 张梦君 郑卿勇 +3 位作者 时忠丽 杨晓妹 杜莉 贾友超 《中国循证医学杂志》 CSCD 北大核心 2026年第2期210-217,共8页
大语言模型驱动的聊天机器人健康建议(CHA)研究日益增多,但其报告呈现出显著的异质性与不完整性,严重限制了研究结果的科学可信度与可重复性。为促进国际上最新发布的《聊天机器人评估报告工具》(CHART)声明在我国的有效传播与规范应用... 大语言模型驱动的聊天机器人健康建议(CHA)研究日益增多,但其报告呈现出显著的异质性与不完整性,严重限制了研究结果的科学可信度与可重复性。为促进国际上最新发布的《聊天机器人评估报告工具》(CHART)声明在我国的有效传播与规范应用,本文旨在对该指南进行系统性的解读与实例分析。本文逐项剖析了CHART清单的12个主条目和39个子条目,系统阐述了各报告要点背后的方法学内涵,并重点分析了针对生成式人工智能(AI)特性的关键要求,如对提示工程、查询策略及对话安全性的透明披露。为连接理论与实践,本文选取一篇已发表的高质量CHA研究作为范例,具体展示了各报告条目在研究实践中的应用方式。本解读旨在为从事相关研究的科研人员、期刊审稿人及编辑提供一份清晰、实用的指南应用手册,以期共同推动我国CHA领域研究的规范化发展,促进AI技术在医疗健康领域的安全、有效应用。 展开更多
关键词 聊天机器人 大语言模型 医疗人工智能 健康建议 CHART报告指南
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《CHART声明:聊天机器人健康建议研究报告指南》要点解读 认领 引用
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作者 向越 石昊宁 +5 位作者 肖文娜 杨惜琳 鞠明远 李琳 赵庆华 黄欢欢 《军事护理》 CSCD 北大核心 2026年第7期78-81,共4页
生成式人工智能在健康建议领域的研究发展迅速,然而相关研究报告质量参差不齐,严重影响证据的可靠性与可比性。《CHART(Consensus-based Health AI Reporting Template)声明:聊天机器人健康建议研究报告指南》由国际多学科团队于2025年... 生成式人工智能在健康建议领域的研究发展迅速,然而相关研究报告质量参差不齐,严重影响证据的可靠性与可比性。《CHART(Consensus-based Health AI Reporting Template)声明:聊天机器人健康建议研究报告指南》由国际多学科团队于2025年8月发布,为规范此类研究提供了首个国际标准。本文旨在系统解读该指南的核心内容,重点阐述其强制透明化报告原则与结构化清单要求,以期为推动生成式人工智能健康研究的高质量、负责任发展提供参考。 展开更多
关键词 聊天机器人 人工智能 健康建议 CHART声明 研究报告指南
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基于Echarts图表库的国有土地资产数据可视化研究 认领 引用
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作者 代林海 刘雨 +1 位作者 秦荣波 马继承 《科技资讯》 2026年第8期177-179,共3页
国有土地资产专项调查中,数据结果由矢量数据库组成,数据结构表相对简单,无法直观且丰富地表达数据类别、占比、数据之间的关联关系等信息。本文使用Echarts图表可视化包,并选取几种图表和专项调查数据特定字段,构建满足Echarts特定参... 国有土地资产专项调查中,数据结果由矢量数据库组成,数据结构表相对简单,无法直观且丰富地表达数据类别、占比、数据之间的关联关系等信息。本文使用Echarts图表可视化包,并选取几种图表和专项调查数据特定字段,构建满足Echarts特定参数要求且附有国有土地资产专项调查成果属性的数据,实现数据的图表可视化。数据成果的可视化方法实现了大屏可视化和专题统计可视化,使国有土地资产专项调查成果可以按照有无权属、土地利用等要素得以充分呈现。数据成果的可视化方法给自然资源数据的丰富可视化提供参考。 展开更多
关键词 Echarts图表 数据可视化 土地资产 土地利用
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Evaluating the role of the Bristol stool chart in diagnosing functional constipation in pediatric populations 认领 引用
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作者 Kriangsak Ounboontham Thitima Ngoenmak 《World Journal of Clinical Pediatrics》 2026年第2期298-306,共9页
BACKGROUND Functional constipation(FC)is a common condition among children worldwide.Although the Rome IV criteria are diagnostic standard,evaluating infants and toddlers can be challenging.The Bristol stool chart(BSC... BACKGROUND Functional constipation(FC)is a common condition among children worldwide.Although the Rome IV criteria are diagnostic standard,evaluating infants and toddlers can be challenging.The Bristol stool chart(BSC)is a simple tool for describing stool consistency,but its diagnostic accuracy in young children is uncertain.AIM To compare the diagnostic performance of the BSC and Rome IV criteria in children under four years.METHODS A prospective cross-sectional study was conducted from June 2025 to October 2025 among children aged 6 months to 4 years attending well-child visits at the Hospital.Parents completed validated Thai versions of the Rome IV questionnaire and the BSC.FC was diagnosed using the Rome IV criteria.Sensitivity,specificity,positive predictive value(PPV),and negative predictive value(NPV)of the BSC were calculated.RESULTS Among 275 children enrolled,43(15.6%)met the Rome IV criteria for FC.The FC group had a significantly higher mean age than the non-FC group(30.1±11.9 months vs 21.2±12.2 months,P<0.001).A family history of constipation was associated with increased FC prevalence(P=0.017).On the BSC,stool types 1-2 indicated constipation.Compared with the Rome IV criteria,the BSC demonstrated sensitivity of 48.8%,specificity of 98.3%,PPV of 84.0%,and NPV of 91.2%.CONCLUSION The BSC shows high specificity but low sensitivity in young children;stool types 1-2 support FC and are best used to confirm diagnosis alongside the Rome IV criteria. 展开更多
关键词 Children Functional constipation Bristol stool chart Pediatric Prevalence
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A complementary approach to quantify the basic GSI chart considering scale effect on rock structure 认领 引用
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作者 Harun Sonmez Gulseren Dagdelenler +1 位作者 Yilmaz Ozcelik Murat Ercanoglu 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2025年第1期154-167,共14页
Geological strength index(GSI)has been widely used as an input parameter in predicting the strength and deformation properties of rock masses.This study derived a series of equations to satisfy the original GSI lines ... Geological strength index(GSI)has been widely used as an input parameter in predicting the strength and deformation properties of rock masses.This study derived a series of equations to satisfy the original GSI lines on the basic GSI chart.Two axes ranging from 0 to 100 were employed for surface conditions of the discontinuities and the structure of rock mass,which are independent of the input parameters.The derived equations can analyze GSI values ranging from 0 to 100 within±5%error.The engineering dimensions(EDs)such as the slope height,tunnel width,and foundation width were used together with representative elementary volume(REV)in jointed rock mass to define scale factor(sf)from 0.2 to 1 in evaluating the rock mass structure including joint pattern.The transformation of GSI into a scaledependent parameter based on engineering scale addresses a crucial requirement in various engineering applications.The improvements proposed in this study were applied to a real slope which was close to the time of failure.The results of stability assessments show that the new proposals have sufficient capability to define rock mass quality considering EDs. 展开更多
关键词 Basic GSI chart Engineering dimension(ED) Hoek and Brown failure criterion Quantification of GSI Quantitative GSI chart Scale effect
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Average Run Length in TEWMA Control Charts:Analytical Solutions for AR(p)Processes and Real Data Applications 认领 引用
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作者 Sirawit Makaew Yupaporn Areepong Saowanit Sukparungsee 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第5期1617-1634,共18页
This study aims to examine the explicit solution for calculating the Average Run Length(ARL)on the triple exponentially weighted moving average(TEWMA)control chart applied to autoregressive model(AR(p)),where AR(p)is ... This study aims to examine the explicit solution for calculating the Average Run Length(ARL)on the triple exponentially weighted moving average(TEWMA)control chart applied to autoregressive model(AR(p)),where AR(p)is an autoregressive model of order p,representing a time series with dependencies on its p previous values.Additionally,the study evaluates the accuracy of both explicit and numerical integral equation(NIE)solutions for AR(p)using the TEWMA control chart,focusing on the absolute percentage relative error.The results indicate that the explicit and approximate solutions are in close agreement.Furthermore,the study investigates the performance of exponentially weighted moving average(EWMA)and TEWMA control charts in detecting changes in the process,using the relative mean index(RMI)as a measure.The findings demonstrate that the TEWMA control chart outperforms the EWMA control chart in detecting process changes,especially when the value ofλis sufficiently large.In addition,an analysis using historical data from the SET index between January 2024 and May 2024 and historical data of global annual plastic production,the results of both data sets also emphasize the superior performance of the TEWMA control chart. 展开更多
关键词 EWMA control chart TEWMA control charts average run length shift detection explicit formula Fredholm integral equation Banach’s fixed-point theorem AR(p)process
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Explicit ARL Computational for a Modified EWMA Control Chart in Autocorrelated Statistical Process Control Models 认领 引用 被引量：1
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作者 Yadpirun Supharakonsakun Yupaporn Areepong Korakoch Silpakob 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第10期699-720,共22页
This study presents an innovative development of the exponentially weighted moving average(EWMA)control chart,explicitly adapted for the examination of time series data distinguished by seasonal autoregressive moving ... This study presents an innovative development of the exponentially weighted moving average(EWMA)control chart,explicitly adapted for the examination of time series data distinguished by seasonal autoregressive moving average behavior—SARMA(1,1)L under exponential white noise.Unlike previous works that rely on simplified models such as AR(1)or assume independence,this research derives for the first time an exact two-sided Average Run Length(ARL)formula for theModified EWMAchart under SARMA(1,1)L conditions,using a mathematically rigorous Fredholm integral approach.The derived formulas are validated against numerical integral equation(NIE)solutions,showing strong agreement and significantly reduced computational burden.Additionally,a performance comparison index(PCI)is introduced to assess the chart’s detection capability.Results demonstrate that the proposed method exhibits superior sensitivity to mean shifts in autocorrelated environments,outperforming existing approaches.The findings offer a new,efficient framework for real-time quality control in complex seasonal processes,with potential applications in environmental monitoring and intelligent manufacturing systems. 展开更多
关键词 Statistical process control average run length modified EWMA control chart autocorrelated data SARMA process computational modeling real-time monitoring
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Effects of herbal medicines containing Paeoniae Radix on patients with restless legs syndrome:A retrospective chart review study 认领 引用
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作者 Young Seon Lee Han-Gyul Lee +6 位作者 Seungwon Kwon Seung-Yeon Cho Woo-Sang Jung Seong-Uk Park Sang-Kwan Moon Jung-Mi Park Chang-Nam Ko 《World Journal of Clinical Cases》 2025年第25期35-45,共11页
BACKGROUND Restless legs syndrome(RLS)is a neurological disorder characterized by an uncontrollable urge to move the legs during rest.Standard treatments may provide short-term relief but are limited by long-term adve... BACKGROUND Restless legs syndrome(RLS)is a neurological disorder characterized by an uncontrollable urge to move the legs during rest.Standard treatments may provide short-term relief but are limited by long-term adverse effects.Herbal medicine containing Paeoniae Radix(HCP)has traditionally been used in Korean medicine to treat RLS symptoms.AIM To investigate the clinical effectiveness and safety of HCP in treating RLS.METHODS This retrospective chart review study included 15 patients with RLS who were treated with HCP between September 2017 and August 2022 at the Kyung Hee University Korean Medicine Hospital.The demographic,disease-related,and treatment-related characteristics,as well as the impressions of each patient,were analyzed.The study also evaluated the changes in the subjective complaints of RLS symptoms,the Korean version of the International Restless Legs Scale(KIRLS)scores before and after treatment,and the adverse events after HCP administration.RESULTS Following HCP administration,14 patients(93.3%)experienced a decrease in the degree of discomfort associated with their symptoms,with an average reduction to 44.7±35.1%compared to their discomfort levels before taking the drug.After treatment,the mean total K-IRLS score decreased significantly from 23.00±9.75 to 13.93±10.9(P=0.005).Among the HCP,a significant reduction in the K-IRLS score was observed in the Gyejibokryeonghwan(26.0±9.7 to 10.0±9.4,P=0.028)and Jakyakgamchotang(23.2±12.6 to 6.6±4.2,P=0.042)groups.Additionally,no adverse events were reported.CONCLUSION HCP improved symptoms in RLS patients.These results suggest that HCP may be an effective and safe alternative for RLS.A randomized controlled trial is required to confirm these findings. 展开更多
关键词 Paeoniae Radix Restless legs syndrome International restless legs scale Herbal medicine Retrospective chart review study
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Rethinking Chart Understanding Using Multimodal Large Language Models 认领 引用
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作者 Andreea-Maria Tanasa Simona-Vasilica Oprea 《Computers, Materials & Continua》 SCIE EI 2025年第8期2905-2933,共29页
Extracting data from visually rich documents and charts using traditional methods that rely on OCR-based parsing poses multiple challenges,including layout complexity in unstructured formats,limitations in recognizing... Extracting data from visually rich documents and charts using traditional methods that rely on OCR-based parsing poses multiple challenges,including layout complexity in unstructured formats,limitations in recognizing visual elements,and the correlation between different parts of the documents,as well as domain-specific semantics.Simply extracting text is not sufficient;advanced reasoning capabilities are proving to be essential to analyze content and answer questions accurately.This paper aims to evaluate the ability of the Large Language Models(LLMs)to correctly answer questions about various types of charts,comparing their performance when using images as input versus directly parsing PDF files.To retrieve the images from the PDF,ColPali,a model leveraging state-of-the-art visual languagemodels,is used to identify the relevant page containing the appropriate chart for each question.Google’s Gemini multimodal models were used to answer a set of questions through two approaches:1)processing images derived from PDF documents and 2)directly utilizing the content of the same PDFs.Our findings underscore the limitations of traditional OCR-based approaches in visual document understanding(VrDU)and demonstrate the advantages of multimodal methods in both data extraction and reasoning tasks.Through structured benchmarking of chart question answering(CQA)across input formats,our work contributes to the advancement of chart understanding(CU)and the broader field of multimodal document analysis.Using two diverse and information-rich sources:the World Health Statistics 2024 report by theWorld Health Organisation and the Global Banking Annual Review 2024 by McKinsey&Company,we examine the performance ofmultimodal LLMs across different input modalities,comparing their effectiveness in processing charts as images versus parsing directly from PDF content.These documents were selected due to their multimodal nature,combining dense textual analysis with varied visual representations,thus presenting realistic challenges for vision-language models.This comparison is aimed at assessing how advanced models perform with different input formats and to determine if an image-based approach enhances chart comprehension in terms of accurate data extraction and reasoning capabilities. 展开更多
关键词 Chart understanding large language models multimodal models PDF extraction
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The role of technical chart patterns in the early Bitcoin market: intraday evidence from the Mt.Gox transaction dataset 认领 引用
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作者 Kevin Rink 《Financial Innovation》 2025年第1期3065-3131,共67页
We use transaction-level data from the Bitcoin exchange Mt.Gox,including over 1.4 million transactions from more than 45,000 traders,to investigate the role of technical chart patterns in the early Bitcoin market from... We use transaction-level data from the Bitcoin exchange Mt.Gox,including over 1.4 million transactions from more than 45,000 traders,to investigate the role of technical chart patterns in the early Bitcoin market from April 2011 to September 2013.Employing a pattern recognition algorithm,we identify hourly trading signals for five major chart patterns.Buy signals of these patterns are associated with an average increase in abnormal trading volume of more than 53%.Trades executed during buy signal periods yield significantly higher average returns than those made during non-signal periods.Traders who use chart patterns more frequently are more likely to generate right-skewed return distributions,engage in more active trading,and achieve higher average roundtrip returns.Our research suggests that chart pattern trading was a crucial tool for Mt.Gox clients,highlighting the importance of technical heuristics in shaping the dynamics in a less efficient and unregulated market environment.By leveraging a comprehensive transaction dataset from a major cryptocurrency exchange,we provide unique insights into the actual trading behavior of the first Bitcoin adopters.This sets our work apart from previous studies that mainly rely on backtesting technical strategies using publicly available price data. 展开更多
关键词 Technical analysis Bitcoin Cryptocurrencies Chart pattern recognition Trading volume Skewness preference
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Application of Fructo-oligosaccharides Quality Control Chart in Milk Powder 认领 引用
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作者 Guoxia DUAN Lijun LIU +5 位作者 Ruilong XIE Xue HU Lunwei WU Jing CHEN Huili GONG Chunxia LIU 《Asian Agricultural Research》 2025年第1期35-37,共3页
The quality control chart of fructo-oligosaccharides in milk powder was established to determine whether the detection process and results are in control state.The content of fructo-oligosaccharides in milk powder con... The quality control chart of fructo-oligosaccharides in milk powder was established to determine whether the detection process and results are in control state.The content of fructo-oligosaccharides in milk powder control samples was determined by ion chromatography,and the quality control chart of fructo-oligosaccharides was established to analyze the controlled state.The results indicate that the median of the quality control chart is 1613.14 mg/100 g,and the standard deviation is 85.57 mg/100 g.The new quality control points were evaluated and analyzed,and the precision changed,but the mean value did not change.Further F test was conducted to determine that the precision did not change significantly,indicating that the test was in a statistical control state,and the detection process,method and results were controlled. 展开更多
关键词 Quality control chart fructo-oligosaccharides Milk powder
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Towards automated validation of charted soundings:Existing tests and limitations 认领 引用 被引量：1
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作者 Christos Kastrisios Brian Calder +1 位作者 Giuseppe Masetti Peter Holmberg 《Geo-Spatial Information Science》 SCIE EI CSCD 2019年第4期290-303,I0006,共14页
The nautical chart is one of the fundamental tools in navigation used by mariners to plan and safely execute voyages.Its compilation follows strict cartographic constraints with the most prominent being that of the sa... The nautical chart is one of the fundamental tools in navigation used by mariners to plan and safely execute voyages.Its compilation follows strict cartographic constraints with the most prominent being that of the safety.Thereby,the cartographer is called to make the selection of the bathymetric information for portrayal on charts in a way that,at any location,the expected water depth is not deeper than the source information.To validate the shoal-biased pattern of selection two standard tests are used,i.e.the triangle and edge tests.To date,some efforts have been made towards the automation of the triangle test,but the edge test has been largely ignored.In the context of research on a fully automated solution for the compilation of charts at different scales from the source information,this paper presents an algorithmic implementation of the two tests for the validation of selected soundings.Through a case study with real-world data,it presents the improved performance of the implementation near and within depth curves and coastlines and points out the importance of the edge test in the validation process.It also presents the,by definition,intrinsic limitation of the two tests as part of a fully automated solution and discusses the need for a new test that will complement or supersede the existing ones. 展开更多
关键词 Automated nautical cartography nautical chart generalization chart safety constraint sounding generalization nautical surface test sounding selection category zone of confidence
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CHARTS项目对四川省艾滋病防治政策环境的影响分析 认领 引用 被引量：3
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作者 文凤梅 明平勇 +3 位作者 李娜 左海燕 苏维 张建新 《现代预防医学》 CAS 北大核心 2012年第18期4729-4731,4735,共3页
目的了解中英艾滋病策略支持项目(CHARTS)对四川省艾滋病防治政策环境变化的作用和影响,为改进艾滋病防治工作提供参考。方法采用问卷调查与关键人物访谈相结合的方法。结果省级多部门艾滋病战略规划数量显著增加,规划针对的目标人群明... 目的了解中英艾滋病策略支持项目(CHARTS)对四川省艾滋病防治政策环境变化的作用和影响,为改进艾滋病防治工作提供参考。方法采用问卷调查与关键人物访谈相结合的方法。结果省级多部门艾滋病战略规划数量显著增加,规划针对的目标人群明显扩大;政府部门的关注度和社会力量参与度不断提高,并呈现出合作的趋势;艾滋病预防政策和策略更加完善,受益人群面不断扩大;对艾滋病受害者的治疗、关怀和支持的政策和策略进一步完善,尤其是对艾滋病孤儿和脆弱儿童的关怀支持力度进一步加大;项目督导评估系列工作基本实现了从无到有。结论在CHARTS项目支持下,四川省艾滋病防治政策环境得到显著改善,但仍然面临诸多挑战。 展开更多
关键词 CHARTS 四川省 艾滋病 政策环境 影响
A comparison of visual acuity measured by ETDRS chart and Standard Logarithmic Visual Acuity chart among outpatients 认领 引用 被引量：4
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作者 Tao Wang Pei—Jie Huang +2 位作者 Chen Chen Ding-Wei Liu Jing-Lin Yi 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2021年第4期536-540,共5页
AIM:To compare the results of visual acuity(VA)measured by Early Treatment Diabetic Retinopathy Study(ETDRS)chart,5 m Standard Logarithm Visual Acuity(5 SL)chart,and 2.5 m Standard Logarithm Visual Acuity(2.5 SL)chart... AIM:To compare the results of visual acuity(VA)measured by Early Treatment Diabetic Retinopathy Study(ETDRS)chart,5 m Standard Logarithm Visual Acuity(5 SL)chart,and 2.5 m Standard Logarithm Visual Acuity(2.5 SL)chart in outpatients of age 12-80 y.METHODS:Each patient(totally 2000 outpatients)had both eyes tested with ETDRS chart at 4 m,5 SL chart at 5 m,and 2.5 SL chart at 2.5 m in random order.The VA values of outpatients were categorized by ages.VA values were expressed by log MAR recording method.RESULTS:The mean VA results of ETDRS charts,5 SL,and 2.5 SL chart were 0.52±0.28,0.50±0.30,and 0.46±0.28 log MAR,respectively.There was a statistically significant difference in the three eye charts in the whole group(P<0.001).For all subjects,the correlation of VA tested with three charts was statistically significant(Spearman correlation coefficient=0.944,0.937,0.946,all P<0.001).Bland–Altman analysis shows the 95%limits of agreement between the 5 SL and 2.5 SL chart were-0.182 to 0.210,-0.139 to 0.251,and-0.151 to 0.235 log MAR,respectively.CONCLUSION:The agreement between the three eye charts is not high.The VA measured by 5 SL chart is slightly better than that by ETDRS chart and 5 SL chart would be a suitable alternative when ETDRS chart are not available in the clinical situation.The VA measured by 2.5 SL chart is about 0.5 line better than VA tested with ETDRS chart,which may overestimate VA. 展开更多
关键词 visual acuity log MAR ETDRS Standard Logarithmic Visual Acuity Chart
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New Hybrid EWMA Charts for Efficient Process Dispersion Monitoring with Application in Automobile Industry 认领 引用 被引量：3
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作者 Xuechen Liu Majid Khan +2 位作者 Zahid Rasheed Syed Masroor Anwar Muhammad Arslan 《Computer Modeling in Engineering & Sciences》 SCIE EI 2022年第5期1171-1195,共25页
The EWMAcharts are thewell-knownmemory-type charts used formonitoring the small-to-intermediate shifts in the process parameters(location and/or dispersion).The hybrid EWMA(HEWMA)charts are enhanced version of the EWM... The EWMAcharts are thewell-knownmemory-type charts used formonitoring the small-to-intermediate shifts in the process parameters(location and/or dispersion).The hybrid EWMA(HEWMA)charts are enhanced version of the EWMA charts,which effectivelymonitor the process parameters.This paper aims to develop two new uppersided HEWMAcharts for monitoring shifts in process variance,i.e.,HEWMA1 and HEWMA2 charts.The design structures of the proposed HEWMA1 and HEWMA2 charts are based on the concept of integrating the features of two EWMAcharts.TheHEWMA1 and HEWMA2charts plotting statistics are developed using one EWMAstatistic as input for the other EWMAstatistic.AMonte Carlo simulations method is used as a computational technique to determine the numerical results for the performance characteristics,such as average run length(ARL),median run length,and standard deviation run length(SDRL)for assessing the performance of the proposed HEWMA1 and HEWMA2 charts.In addition,to evaluate the overall performance of the proposed HEWMA1 and HEWMA2 charts,other numerical measures consisting of the extra quadratic loss(EQL),relative average run length(RARL),and performance comparison index(PCI)are also computed.The proposed HEWMA1 and HEWMA2 charts are compared to some existing charts,such as CH,CEWMA,HEWMA,AEWMAHHW1,HHW2,AIB-EWMA-I,and AIB-EWMA-II charts,on the basis aforementioned numerical measures.The comparison reveals that the proposed HEWMA1 and HEWMA2 charts achieve better detection ability against the existing charts.In the end,a real-life data application is also provided to enhance the implementation of the proposed HEWMA1 and HEWMA2 charts practically. 展开更多
关键词 Average run length extra quadratic loss memory-type charts Monte Carlo simulations smoothing parameter
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CHARTS项目对中国艾滋病防治政策环境变化的影响 认领 引用 被引量：4
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作者 石凯 胡志 +2 位作者 胡虹 王歆 韩孟杰 《中国预防医学杂志》 CAS 2011年第1期17-20,共4页
中英艾滋病策略支持项目(CHARTS项目)是我国惟一专门从事艾滋病防治政策开发和落实的战略性国际合作项目,项目办设在国务院艾滋病防治工作委员会办公室(国艾办),项目自2005年1月启动,将于2011年3月底结束。项目支持20个相关部委、12个省... 中英艾滋病策略支持项目(CHARTS项目)是我国惟一专门从事艾滋病防治政策开发和落实的战略性国际合作项目,项目办设在国务院艾滋病防治工作委员会办公室(国艾办),项目自2005年1月启动,将于2011年3月底结束。项目支持20个相关部委、12个省,80多家大学和研究机构,20多家社团和民间组织参与。为全面评价CHARTS项目对我国艾滋病防治政策环境变化的作用及影响,项目聘请专家利用项目数据库,国家艾滋病防治综合政策指数(NCPI)调查问卷,访谈三种方法收集数据。运用"前-后"对比、关联分析、对象评定法、文本分析法四种策略进行分析和论证。结果显示自2005年以来中国艾滋病防治政策环境发生了变化,归因于中国政府对艾滋病防治工作的高度重视,并始终坚持"政府组织领导部门各负其责、全社会共同参与"的结果。CHARTS项目与国家艾滋病防治政策环境变化密切相关,主要在"战略规划、政治支持、预防、治疗关怀与支持、督导与评估五个领域"起到了积极推动作用。 展开更多
关键词 CHARTS项目 艾滋病 政策环境 影响研究
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Charting Normative Brain Variability Across the Human Lifespan 认领 引用 被引量：2
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作者 Yongbin Wei Han Zhang Yong Liu 《Neuroscience Bulletin》 SCIE CAS CSCD 2023年第2期362-364,共3页
Introduction Since De Montbeillard characterized the first curve of his son's height in the late 18th century,growth charts have become increasingly essential for pediatricians to describe group-level variability ... Introduction Since De Montbeillard characterized the first curve of his son's height in the late 18th century,growth charts have become increasingly essential for pediatricians to describe group-level variability and monitor the over-development of individual-level growth[1].Growth charts can provide a standardized statistical reference to estimate deviations in a child's physiological measurements(e.g.,height and weight). 展开更多
关键词 charts height variability
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Ranked-Set Sampling Based Distribution Free Control Chart with Application in CSTR Process 认领 引用 被引量：1
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作者 Ibrahim M.Almanjahie Zahid Rasheed +2 位作者 Majid Khan Syed Masroor Anwar Ammara Nawaz Cheema 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第6期2091-2118,共28页
Nonparametric(distribution-free)control charts have been introduced in recent years when quality characteristics do not follow a specific distribution.When the sample selection is prohibitively expensive,we prefer ran... Nonparametric(distribution-free)control charts have been introduced in recent years when quality characteristics do not follow a specific distribution.When the sample selection is prohibitively expensive,we prefer ranked-set sampling over simple random sampling because ranked set sampling-based control charts outperform simple random sampling-based control charts.In this study,we proposed a nonparametric homogeneously weighted moving average based on theWilcoxon signed-rank test with ranked set sampling(NPHWMARSS)control chart for detecting shifts in the process location of a continuous and symmetric distribution.Monte Carlo simulations are used to obtain the run length characteristics to evaluate the performance of the proposed NPHWMARSS control chart.The proposed NPHWMARSS control chart’s performance is compared to that of parametric and nonparametric control charts.These control charts include the exponentially weighted moving average(EWMA)control chart,Wilcoxon signed-rank with simple random sampling based the nonparametric EWMA control chart,the nonparametric EWMA sign control chart,Wilcoxon signed-rank with ranked set sampling-based the nonparametric EWMA control chart,and the homogeneously weighted moving average control charts.The findings show that the proposed NPHWMARSS control chart performs better than its competitors,particularly for the small shifts.Finally,an example is presented to demonstrate how the proposed scheme can be implemented practically. 展开更多
关键词 Nonparametric control charts run-length ranked set sampling Wilcoxon signed-rank
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CHARTS项目促进我国艾滋病防治督导与评估体系建设的分析 认领 引用 被引量：1
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作者 胡虹 王震 +5 位作者 石凯 何伟 吕柯 董世存 王歆 韩孟杰 《实用预防医学》 CAS 2011年第3期397-399,共3页
目的分析中英艾滋病防治策略项目（CHARTS）促进艾滋病防治督导与评估体系建设情况。方法利用CHARTS项目战略管理能力评估工具,通过深入访谈和小组讨论收集数据,并通过查阅项目计划和进展报告以及有关工作报告、研究报告和文件等资料收... 目的分析中英艾滋病防治策略项目（CHARTS）促进艾滋病防治督导与评估体系建设情况。方法利用CHARTS项目战略管理能力评估工具,通过深入访谈和小组讨论收集数据,并通过查阅项目计划和进展报告以及有关工作报告、研究报告和文件等资料收集相关信息,采取定量和定性相结合的分析方法。结果国家和省级的艾滋病防治督导与评估系统建设目标实现程度在CHARTS项目基期、中期和终期的中位数分别是20%（1%-53.8%）、37.1%（29.5%-71%）和74.9%（56.7%-83.2%）,表明达到了＂系统地实现＂目标的阶段。CHARTS项目通过技术和资金支持了涵盖国家级和省级督导与评估体系的八个方面。结论国家和省级的艾滋病防治督导与评估系统建设具有明显进步,CHARTS项目通过技术和资金支持,发挥了促进督导与评估体系建设的作用。 展开更多
关键词 CHARTS项目 监督与评估 艾滋病
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A structural VAR and VECM modeling method for open-high-low-close data contained in candlestick chart 认领 引用 被引量：1
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作者 Wenyang Huang Huiwen Wang Shanshan Wang 《Financial Innovation》 2024年第1期2017-2045,共29页
The structural modeling of open-high-low-close(OHLC)data contained within the candlestick chart is crucial to financial practice.However,the inherent constraints in OHLC data pose immense challenges to its structural ... The structural modeling of open-high-low-close(OHLC)data contained within the candlestick chart is crucial to financial practice.However,the inherent constraints in OHLC data pose immense challenges to its structural modeling.Models that fail to process these constraints may yield results deviating from those of the original OHLC data structure.To address this issue,a novel unconstrained transformation method,along with its explicit inverse transformation,is proposed to properly handle the inherent constraints of OHLC data.A flexible and effective framework for structurally modeling OHLC data is designed,and the detailed procedure for modeling OHLC data through the vector autoregression and vector error correction model are provided as an example of multivariate time-series analysis.Extensive simulations and three authentic financial datasets from the Kweichow Moutai,CSI 100 index,and 50 ETF of the Chinese stock market demonstrate the effectiveness and stability of the proposed modeling approach.The modeling results of support vector regression provide further evidence that the proposed unconstrained transformation not only ensures structural forecasting of OHLC data but also is an effective feature-extraction method that can effectively improve the forecasting accuracy of machine-learning models for close prices. 展开更多
关键词 OHLC data Structural modeling Unconstrained transformation Candlestick chart VAR VECM
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