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Harmonization of Heart Disease Dataset for Accurate Diagnosis:A Machine Learning Approach Enhanced by Feature Engineering
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作者 Ruhul Amin Md.Jamil Khan +2 位作者 Tonway Deb Nath Md.Shamim Reza Jungpil Shin 《Computers, Materials & Continua》 2025年第3期3907-3919,共13页
Heart disease includes a multiplicity of medical conditions that affect the structure,blood vessels,and general operation of the heart.Numerous researchers have made progress in correcting and predicting early heart d... Heart disease includes a multiplicity of medical conditions that affect the structure,blood vessels,and general operation of the heart.Numerous researchers have made progress in correcting and predicting early heart disease,but more remains to be accomplished.The diagnostic accuracy of many current studies is inadequate due to the attempt to predict patients with heart disease using traditional approaches.By using data fusion from several regions of the country,we intend to increase the accuracy of heart disease prediction.A statistical approach that promotes insights triggered by feature interactions to reveal the intricate pattern in the data,which cannot be adequately captured by a single feature.We processed the data using techniques including feature scaling,outlier detection and replacement,null and missing value imputation,and more to improve the data quality.Furthermore,the proposed feature engineering method uses the correlation test for numerical features and the chi-square test for categorical features to interact with the feature.To reduce the dimensionality,we subsequently used PCA with 95%variation.To identify patients with heart disease,hyperparameter-based machine learning algorithms like RF,XGBoost,Gradient Boosting,LightGBM,CatBoost,SVM,and MLP are utilized,along with ensemble models.The model’s overall prediction performance ranges from 88%to 92%.In order to attain cutting-edge results,we then used a 1D CNN model,which significantly enhanced the prediction with an accuracy score of 96.36%,precision of 96.45%,recall of 96.36%,specificity score of 99.51%and F1 score of 96.34%.The RF model produces the best results among all the classifiers in the evaluation matrix without feature interaction,with accuracy of 90.21%,precision of 90.40%,recall of 90.86%,specificity of 90.91%,and F1 score of 90.63%.Our proposed 1D CNN model is 7%superior to the one without feature engineering when compared to the suggested approach.This illustrates how interaction-focused feature analysis can produce precise and useful insights for heart disease diagnosis. 展开更多
关键词 Heart disease harmonization feature interaction PCA model hyper tuning machine learning
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ANALYSIS OF REGULATION AND HARMONIZATION IMPLIED IN A-B CLASSIC ON ACUPUNCTURE AND MOXIBUSTION
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作者 姜燕 马新平 《World Journal of Acupuncture-Moxibustion》 2007年第1期46-48,共3页
It aims to draw the conclusion that the ideas of treatment in Zhen Jiu Jia Yi Jing (《针灸甲乙经》, A-B Classic on Acupuncture and Moxibustion ) can be summarized as "regulation" and "harmonization" through the ... It aims to draw the conclusion that the ideas of treatment in Zhen Jiu Jia Yi Jing (《针灸甲乙经》, A-B Classic on Acupuncture and Moxibustion ) can be summarized as "regulation" and "harmonization" through the research of words in the Classic, such as "being normal", "regulation" and "harmonization". The lost of regulation of a normal person shows disharmony. Regulation can make the person-being-sick become harmony and back to "being normal". "Regulation" and "harmonization" right imply the quintessence of traditional Chinese medicine. 展开更多
关键词 A-B Classic on Acupuncture and Moxibustion Rgulation and harmonization Being normal
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Harmonization of Spatial Discrepancies from Land-related Data and Information Using Geospatial Technologies: A Case Study of OI-Kalou Township in Nyandarua County, Kenya
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作者 Paul K. Tower Tubei Patroba Achola Odera 《Journal of Geodesy and Geomatics Engineering》 2016年第2期37-51,共15页
This paper explores potential of Remote Sensing and Geospatial Information Systems as viable tools for data collection, processing, transformation and adjustment of cadastral data discrepancies often noted by geospati... This paper explores potential of Remote Sensing and Geospatial Information Systems as viable tools for data collection, processing, transformation and adjustment of cadastral data discrepancies often noted by geospatial practitioners during rasterization and vectorization of land related data. Necessary datasets were collected employing main approach/procedure of scanning, georeferencing, digitization, transformation and analysis in that order, to amalgamate and harmonize all datasets into one common projection and coordinate system (Universal Transverse Mercator (UTM) on Arc-Datum 1960). Discrepancies in derived areas against recorded values in land registries were noted, smaller parcels exhibited smaller discrepancies and vice versa. Discrepancies were found to be directly proportional to the parcel areas/sizes although large parcels (〉 1000 m2) exhibited abnormally high discrepancies. This procedure yielded systematic discrepancies that could be minimized by use of a fifth order polynomial. Resultant residuals were found to be tolerably low and could be ignored for small parcels (〈 1000 m2). Final outputs included automated GIS geodatabase cadastre, containing cadastral attributes harmonized to one projection and coordinate system that can be overlaid to other datasets from engineering design and construction works, geological and geotechnical investigation surveys, etc. tied to Remote Sensing data without the requirement of further transformations. 展开更多
关键词 Coordinate transformation GEOREFERENCING projection systems cadastre spatial data discrepancies spatial data harmonization.
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液压蓄能竖向隔震系统力学特性研究
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作者 汪磊 鲁亮 夏婉秋 《哈尔滨工业大学学报》 北大核心 2026年第1期151-160,共10页
为解决现有隔震装置普遍侧重水平向而竖向控制薄弱的问题,本文提出一种新型液压蓄能竖向隔震体系,以有效抑制结构的竖向地震响应。首先,分析了系统的刚度特性,通过静力试验验证了隔震系统的力学性能和阻尼耗能能力。其次,建立了隔震系... 为解决现有隔震装置普遍侧重水平向而竖向控制薄弱的问题,本文提出一种新型液压蓄能竖向隔震体系,以有效抑制结构的竖向地震响应。首先,分析了系统的刚度特性,通过静力试验验证了隔震系统的力学性能和阻尼耗能能力。其次,建立了隔震系统动力学模型,采用谐波平衡法求解系统的幅频响应和位移传递率,分析了振动幅值、阻尼比和蓄能器体积压缩系数对位移传递率的影响。最后,建立了液压蓄能竖向隔震混凝土框架结构和未隔震框架结构的有限元模型,对上述模型进行了地震动动力时程分析,对比分析了两种框架的地震响应结果。研究结果表明:液压蓄能竖向隔震混凝土框架结构的竖向加速度响应与地面输入相比平均降低了59%,竖向隔震效果明显。 展开更多
关键词 竖向隔震 液压系统 谐波平衡法 数值分析 位移传递率
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彭培初基于“邪蕴三焦,枢机不利”论治黏膜病变经验
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作者 王名杨 徐新宇 +4 位作者 杨路宗 贾默然 盛东亚 囤荣梁 彭煜 《山东中医杂志》 2026年第1期72-77,共6页
彭培初教授基于“邪蕴三焦,枢机不利”论治黏膜病变,认为黏膜在分布、对机体的保护以及代谢过程的维持方面与三焦功能相似,在保护机体、沟通内外方面与少阳功能相似,一旦饮食不节致三焦蕴邪、湿热内阻,或情志不遂致肝胆郁滞、少阳枢机不... 彭培初教授基于“邪蕴三焦,枢机不利”论治黏膜病变,认为黏膜在分布、对机体的保护以及代谢过程的维持方面与三焦功能相似,在保护机体、沟通内外方面与少阳功能相似,一旦饮食不节致三焦蕴邪、湿热内阻,或情志不遂致肝胆郁滞、少阳枢机不利,皆可导致黏膜病变产生。据此将黏膜病变基本病机概括为“邪蕴三焦,枢机不利”,治疗上遵循“清热利湿通三焦,疏肝利胆和枢机”的原则,创制黏膜方以达和解少阳、清热利湿、通腑泄浊之功,在慢性萎缩性胃炎、口腔溃疡、膀胱癌等黏膜病变的治疗中有显著效果,为黏膜病变的辨治提供启发。 展开更多
关键词 黏膜病变 黏膜方 枢机不利 和解少阳 名医经验 彭培初
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二维自适应笛卡尔网格方法及其波浪水池应用
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作者 吴铖毓 李超凡 +1 位作者 石凯元 朱仁传 《哈尔滨工程大学学报》 北大核心 2026年第1期54-61,共8页
为提升非线性波浪模拟的计算精度与效率,本文建立一种高效、低存储的自适应网格方法。基于调和多项式单元法和体积分数法构建非线性时域波浪水池,并采用四叉树与哈希表结构,开发自由面网格实时自动化加密的算法。数值结果表明,该算法网... 为提升非线性波浪模拟的计算精度与效率,本文建立一种高效、低存储的自适应网格方法。基于调和多项式单元法和体积分数法构建非线性时域波浪水池,并采用四叉树与哈希表结构,开发自由面网格实时自动化加密的算法。数值结果表明,该算法网格重构效率高、动态内存使用量呈线性增长,且应用在波浪水池中能够稳定、高效地模拟非线性规则波与畸形波的演化过程,适用于海洋工程领域复杂波浪的数值模拟。 展开更多
关键词 自适应笛卡尔网格 调和多项式单元法 体积分数法 波浪水池 非线性波浪模拟
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聚焦波群作用下并联双箱的窄缝内流体共振
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作者 鲁执晟 姜胜超 魏丹丹 《哈尔滨工程大学学报》 北大核心 2026年第1期62-69,共8页
针对聚焦波作用于并联双箱的窄缝内流体共振问题,本文采用OpenFOAM的数值波浪水槽进行研究。分别考虑了聚焦波频率与窄缝流体共振频率相等、聚焦波频率为窄缝流体共振频率的1/2与1/3时,聚焦波作用下窄缝内流体的运动响应,可以分解为波... 针对聚焦波作用于并联双箱的窄缝内流体共振问题,本文采用OpenFOAM的数值波浪水槽进行研究。分别考虑了聚焦波频率与窄缝流体共振频率相等、聚焦波频率为窄缝流体共振频率的1/2与1/3时,聚焦波作用下窄缝内流体的运动响应,可以分解为波浪聚焦作用时的瞬态运动与聚焦波作用后的持续运动2个阶段。研究发现,在聚焦波作用时的第1阶段,各组成波列波峰在聚焦点叠加作用于双箱系统,导致双箱内窄缝流体波面迅速升高,窄缝内流体运动周期与聚焦波周期接近,说明该阶段窄缝流体运动主要由波频作用产生。进一步,在3种入射聚焦波频率条件下,窄缝流体共振分别被线性谐波、二阶谐波与三阶谐波所激发,窄缝流体运动周期迅速接近于自振周期。最后,在聚焦波作用后的第2阶段,在3种聚焦波频率作用下,窄缝流体运动均呈现依照其自振周期运动的特征。 展开更多
关键词 聚焦波浪 窄缝共振 入射波浪频率 聚焦波幅 瞬态运动 持续运动 高阶谐波 自振周期
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Unification and Harmonization in True Color Image City Map 被引量:3
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作者 ZHAO Xi PANG Xiaoping +1 位作者 ZHANG Shengli ZHANG Xiang 《Geo-Spatial Information Science》 2007年第1期75-78,共4页
True color image city map is a sort of new-style map which combines the high resolution image and map symbols and shows both advantages in visualization. At the same time, the map unification and harmonization should ... True color image city map is a sort of new-style map which combines the high resolution image and map symbols and shows both advantages in visualization. At the same time, the map unification and harmonization should be taken into account dur-ing the design process, since some visual conflicts appear when map symbols overlaid on the true color image. The objective of this research is to explore the rules in the process of true color image city map design based on chromatic and aesthetic knowledge. At the end, taking the Image Atlas of Guangzhou as an example, image color adjustment, road network presentation, and symbol de-signing issues will be discussed in the application. 展开更多
关键词 true color image city map map design unification harmonization
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增设电容C_(3)的新型CVT的误差性能优化设计
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作者 王玲 冯宇 +1 位作者 顾风彪 杨柳 《高压电器》 北大核心 2026年第1期112-119,共8页
在常规电容式电压互感器(CVT)的分压器低压端串接电容C_(3)实现谐波数据准确测量已被证实是一种可行技术,探求其误差特性并提出优化控制措施,对其工程应用具有重要意义。文中针对此类新型CVT,开展了其结构和误差特性分析。首先明确了二... 在常规电容式电压互感器(CVT)的分压器低压端串接电容C_(3)实现谐波数据准确测量已被证实是一种可行技术,探求其误差特性并提出优化控制措施,对其工程应用具有重要意义。文中针对此类新型CVT,开展了其结构和误差特性分析。首先明确了二次绕组与谐波测量部分间的相互影响,由此获知分压器电容量偏差和谐波测量端负荷为影响其谐波测量端误差特性的关键参量,在此基础之上提出了谐波测量端的误差控制方法,最后通过试验验证了新型CVT的性能满足电网谐波监测要求、所提误差改进措施有效。在衡水110 kV怀甫站进行的挂网运行情况表明,该新型CVT运行平稳、获取的谐波监测数据准确有效。文中的研究结果为今后开展该类CVT的设计和使用奠定了技术基础。 展开更多
关键词 电容式电压互感器 谐波测量 误差性能 分压比 影响系数
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庞鹤治疗淤积性皮炎的用药规律与辨治思想探析
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作者 郭彦每 周春宇 +4 位作者 陈小均 曹建春 金潇 张凡帆 张少辉 《广州中医药大学学报》 2026年第1期221-226,共6页
【目的】运用数据挖掘技术探析庞鹤教授治疗淤积性皮炎的用药规律。【方法】收集2019年6月至2024年6月期间庞鹤教授在北京中医药大学东方医院门诊治疗淤积性皮炎的有效病例的处方数据,运用Excel表创建数据库,采用SPSS 25.0统计软件和SPS... 【目的】运用数据挖掘技术探析庞鹤教授治疗淤积性皮炎的用药规律。【方法】收集2019年6月至2024年6月期间庞鹤教授在北京中医药大学东方医院门诊治疗淤积性皮炎的有效病例的处方数据,运用Excel表创建数据库,采用SPSS 25.0统计软件和SPSS Modeler 18.0软件进行药物的用药频次、性味归经分析和关联规则分析以及高频药物的聚类分析。【结果】共纳入中药处方107首,涉及中药140味。使用频次居前10位的药物分别为当归、苍术、桂枝、丹参、黄芪、川芎、赤芍、地龙、土鳖虫、黄柏;使用频次≥20次的高频药物共38味。药物的四气以温性为主,五味以辛味为主,主要归肝经、脾经。关联规则分析得到关联性较高的药对为当归-川芎、丹参-赤芍、当归-赤芍,聚类分析得到4个聚类方。【结论】庞鹤教授认为淤积性皮炎以气虚水停、血虚生风、肌肤失养为本,辨证以气血为要,治疗以益气养血、和营通脉、祛风除湿之法,随症兼用化瘀养阴、化浊解毒之法,体现其基于整体观而调和阴阳的临证思路。 展开更多
关键词 淤积性皮炎 气虚水停 血虚生风 益气养血 和营通脉 数据挖掘 庞鹤
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带调和振荡算子热方程的适定性研究
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作者 王涛 田媛媛 李浩光 《中南民族大学学报(自然科学版)》 2026年第1期106-109,共4页
带调和振荡算子非线性热方程的适定性问题是当前的一个热门课题.在低正则Sobolev空间下,利用磨光算子估计、Hahn-Banach延拓定理、Riesz表示定理、压缩映射原理等方法,证明了带调和振荡算子的非线性热方程柯西问题解的全局存在唯一性.
关键词 调和振荡算子 热方程 低正则Sobolev空间 全局适定性
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浅析分期序贯疗法治疗小儿反复呼吸道感染
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作者 曹美珠 罗嘉敏 何胜尧 《新中医》 2026年第1期134-138,共5页
小儿反复呼吸道感染(RRTIs)以肺脾肾亏虚为本,痰湿、食积、瘀血等病理产物为标。该文从“虚、痰、瘀、滞”的动态病机演变切入,提出分期论治策略,强调发作期祛邪扶正、恢复期调和肝脾、间歇期固本培元,并结合临床医案验证“健脾消积-调... 小儿反复呼吸道感染(RRTIs)以肺脾肾亏虚为本,痰湿、食积、瘀血等病理产物为标。该文从“虚、痰、瘀、滞”的动态病机演变切入,提出分期论治策略,强调发作期祛邪扶正、恢复期调和肝脾、间歇期固本培元,并结合临床医案验证“健脾消积-调和肝脾-补益脾肾”的三步序贯疗法,为临床提供诊疗路径。 展开更多
关键词 反复呼吸道感染 肺脾肾虚证 调和肝脾 序贯疗法 动态治疗
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The promotion of international certification harmonization of welding fabrication industries
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作者 解应龙 陈宇 +1 位作者 钱强 戴万福 《China Welding》 EI CAS 2005年第1期6-8,共3页
Enterprises and their products require corresponding international qualification when they participate in international market competition after China joined WTO. At present, the number of certified welding fabricatio... Enterprises and their products require corresponding international qualification when they participate in international market competition after China joined WTO. At present, the number of certified welding fabrication companies is still small. However, more and more enterprises are getting to realize the importance, and we have already had the following basic conditions: welding personnel qualification according to the international guidelines and rules, welding standards equivalent to ISO and EN standards, as well as full successful experiences of company certification gained through cooperation between China and Germany. So with additional industries’ support and government’s attention, company certification according to international rules will provide qualification guarantee for welding fabrication companies to participate in international market competition. 展开更多
关键词 COMPANY CERTIFICATION international harmonization
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Harmonization of Political and Administrative Boundaries in Kenya Using GIS: A Case Study of Mavoko Constituency
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作者 Kyatu Irene Godfrey Makokha Moses Ngigi 《Journal of Geographic Information System》 2017年第2期141-157,共17页
The objective of this research was to harmonize political and administrative boundaries in Mavoko Constituency, Machakos County, Kenya, using geo-spatial technology and public consultation in order to address the nume... The objective of this research was to harmonize political and administrative boundaries in Mavoko Constituency, Machakos County, Kenya, using geo-spatial technology and public consultation in order to address the numerous disputes that exist. Specifically, the project focused on analyzing the existing electoral and administrative boundaries in the area of study by identifying all existing gaps and overlaps, rectifying the identified gaps and overlaps and created a web based geo-portal of the harmonized sub location boundaries to enable sharing. This was achieved through first putting the various datasets on the same Spatial Reference System and comparing them in order to identify and rectify them using various geospatial operations, public consultation and field work. The result was a single harmonized layer for the sub location data set for the study area. The project finally developed a customized GIS web based portal for sharing the harmonized Sub location boundary. This was uploaded on an open source platform, which has the capability for offline use in the field. The project worked on a hypothesis that if the sub location boundaries adopted by the various Government and Public organizations and individuals doing any kind of mapping in Kenya was a single harmonized data set, the emerging issues on boundary disputes between Counties, Constituencies and County Assembly Wards (CAW’s) would not occur. This is because there would be authentic, consisted and authoritative geo-information which maintains a harmonized, consistent, reusable and readily available data. The development of the geo portal ensured that the results of the research are easily accessible on www.msc2015boundariesmavoko.info.ke/mavoko. 展开更多
关键词 Boundaries Data SHARING Geo PORTAL GIS harmonization
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Minutes of the Second WHO Consultation Meeting on Harmonization of Traditional and Modern Medicine
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作者 Prof.XIEZhufan 《Chinese Journal of Integrated Traditional and Western Medicine》 2003年第4期313-314,共2页
关键词 WHO Minutes of the Second WHO Consultation Meeting on harmonization of Traditional and Modern Medicine of on
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Wave Harmonization in Hierarchic Quasicrystals by the Analytic Metric
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作者 Antony J. Bourdillon 《Journal of Modern Physics》 2019年第11期1364-1373,共10页
Thirty seven years after the discovery of quasicrystals, their diffraction is completely described by harmonization between the sine wave probe with hierarchic translational symmetry in a structure that is often calle... Thirty seven years after the discovery of quasicrystals, their diffraction is completely described by harmonization between the sine wave probe with hierarchic translational symmetry in a structure that is often called quasiperiodic. The diffraction occurs in geometric series that is a special case of the Fibonacci sequence. Its members are irrational. When substitution is made for the golden section τ by the semi-integral value 1.5, a coherent set of rational numbers maps the sequence. Then the square of corresponding ratios is a metric that harmonizes the sine wave probe with the hierarchic structure, and the quasi-Bragg angle adjusts accordingly. From this fact follows a consistent description of structure, diffraction and measurement. 展开更多
关键词 QUASICRYSTAL ICOSAHEDRA Hierarchic harmonization METRIC Geometric Series
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A Ship of Fools Failing Harmonization and the Disregard of Principles of Finance
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作者 Tomas Hulko 《Cultural and Religious Studies》 2017年第1期30-40,共11页
The development of the EU according to the strategy Europe 2020 has encountered significant difficulties. It was caused in great part by the underestimation and in some cases total ignorance towards the principles of ... The development of the EU according to the strategy Europe 2020 has encountered significant difficulties. It was caused in great part by the underestimation and in some cases total ignorance towards the principles of financial science. The paper discusses the absence of financial-law based point of view regarding the future development scenarios until 2020. Then the five goals set out by the strategy are examined. The critical state of finance in the EU shows the fruitlessness of all the harmonization efforts lately. The authors of fake statistics and fake misleading prognoses have not been brought to justice. The causes of the crisis have been wrongly identified. We are losing our wealth, which generations had labored to accumulate. We are actively giving up our civil rights and the security of our citizens to create a more pleasant environment for Saudi Arabia. During this effort we have contributed to the destruction of millions of lives in the Middle East. We are the only ones in the world still lending our trust to rating agencies that deliberately derailed the global economy in the pursuit of extra profit. 展开更多
关键词 Europe 2020 strategy evaluation harmonization financial law growth scenarios headline targets crisis management synergles
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