A robust and efficient algorithm is presented to build multiresolution models (MRMs) of arbitrary meshes without requirement of subdivision connectivity. To overcome the sampling difficulty of arbitrary meshes, edge c...A robust and efficient algorithm is presented to build multiresolution models (MRMs) of arbitrary meshes without requirement of subdivision connectivity. To overcome the sampling difficulty of arbitrary meshes, edge contraction and vertex expansion are used as downsampling and upsampling methods. Our MRMs of a mesh are composed of a base mesh and a series of edge split operations, which are organized as a directed graph. Each split operation encodes two parts of information. One is the modification to the mesh, and the other is the dependency relation among splits. Such organization ensures the efficiency and robustness of our MRM algorithm. Examples demonstrate the functionality of our method.展开更多
This paper proposes a new computer aided pattern design system(CAPDS)in which a uniformmathematical expression is used to construct different objects. In the geometric model, 3 B-splineis adopted as a line model. The ...This paper proposes a new computer aided pattern design system(CAPDS)in which a uniformmathematical expression is used to construct different objects. In the geometric model, 3 B-splineis adopted as a line model. The new system with uniform mathematical expression has the distin-guishing features: curve smoothness and fidelity, convenience to process graphic data in thedatabase and etc.. This paper presents the data structure, the program structure and also the implementation.展开更多
Data structure is the core course for computer science majors.How to improve their‘computational thinking’ability is crucial and challenging in this course.To optimize the teaching effect,a classroom teaching model ...Data structure is the core course for computer science majors.How to improve their‘computational thinking’ability is crucial and challenging in this course.To optimize the teaching effect,a classroom teaching model is proposed.This model combines Yu Classroom online teaching tools,Chinese university MOOC teaching resources and BOPPPS model.The empirical experiment was implemented and the results showthat the comprehensive application of this teaching model helps to cultivate students’high-level cognitive ability of‘analysis,evaluation and creation’.It is proved the validity of this teaching model improve students’.展开更多
An object oriented data modelling in computer aided design (CAD) databases is focused. Starting with the discussion of data modelling requirements for CAD applications, appropriate data modelling features are introdu...An object oriented data modelling in computer aided design (CAD) databases is focused. Starting with the discussion of data modelling requirements for CAD applications, appropriate data modelling features are introduced herewith. A feasible approach to select the “best” data model for an application is to analyze the data which has to be stored in the database. A data model is appropriate for modelling a given task if the information of the application environment can be easily mapped to the data model. Thus, the involved data are analyzed and then object oriented data model appropriate for CAD applications are derived. Based on the reviewed object oriented techniques applied in CAD, object oriented data modelling in CAD is addressed in details. At last 3D geometrical data models and implementation of their data model using the object oriented method are presented.展开更多
Observability and traceability of developed software are crucial to its success in software engineering.Observability is the ability to comprehend a system’s internal state from the outside.Monitoring is used to dete...Observability and traceability of developed software are crucial to its success in software engineering.Observability is the ability to comprehend a system’s internal state from the outside.Monitoring is used to determine what causes system problems and why.Logs are among the most critical technology to guarantee observability and traceability.Logs are frequently used to investigate software events.In current log technologies,software events are processed independently of each other.Consequently,current logging technologies do not reveal relationships.However,system events do not occur independently of one another.With this perspective,our research has produced a new log design pattern that displays the relationships between events.In the design we have developed,the hash mechanism of blockchain technology enables the display of the logs’relationships.The created design pattern was compared to blockchain technology,demonstrating its performance through scenarios.It has been determined that the recommended log design pattern outperforms blockchain technology in terms of time and space for software engineering observability and traceability.In this context,it is anticipated that the log design pattern we provide will strengthen the methods used to monitor software projects and ensure the traceability of relationships.展开更多
The proliferation of textual data in society currently is overwhelming, in particular, unstructured textual data is being constantly generated via call centre logs, emails, documents on the web, blogs, tweets, custome...The proliferation of textual data in society currently is overwhelming, in particular, unstructured textual data is being constantly generated via call centre logs, emails, documents on the web, blogs, tweets, customer comments, customer reviews, etc.While the amount of textual data is increasing rapidly, users ability to summarise, understand, and make sense of such data for making better business/living decisions remains challenging. This paper studies how to analyse textual data, based on layered software patterns, for extracting insightful user intelligence from a large collection of documents and for using such information to improve user operations and performance.展开更多
目的:探讨针灸治疗帕金森病非运动症状(PD-NMS)患者的辨证取穴规律,为临床治疗PD-NMS患者提供帮助。方法:采用系统性文献检索策略,查询中国知网(CNKI)、中国生物医学文献数据库(CBM)、维普中文期刊服务平台、万方数据知识服务平台(Wanfa...目的:探讨针灸治疗帕金森病非运动症状(PD-NMS)患者的辨证取穴规律,为临床治疗PD-NMS患者提供帮助。方法:采用系统性文献检索策略,查询中国知网(CNKI)、中国生物医学文献数据库(CBM)、维普中文期刊服务平台、万方数据知识服务平台(Wanfang Data)、PubMed、Embase、Web of Science等中英文数据库中有关针灸治疗PD-NMS的相关文献,提取症状、取穴处方信息构建医案数据库,采用隐结构模型、频繁项集分析等方法,分析针灸治疗PD-NMS的辨证取穴规律。检索时限均为建库至2025年2月28日。结果:系统检索中英文数据库,筛选针灸干预PD-NMS的临床文献46篇。在1 366份病历资料中提取71项症状体征、108个精准穴位定位点及114个穴位配伍方案构建结构化数据库,解析PD-NMS中医证型与取穴模式的对应规律。对症状、腧穴、证型进行频繁项集分析,挖掘出症状-腧穴频繁项集5项,包括五心烦热+腰酸+睡眠障碍+太冲等;证型-症状-腧穴频繁项集5项,包括肝肾阴虚证+五心烦热+腰酸+睡眠障碍+太冲+三阴交等。针灸治疗PD-NMS多以太冲、风池、合谷为主穴。结论:针灸治疗帕金森病非运动症状多以太冲、风池、合谷为主穴,配穴依据临床情况辨证取穴,此可为临床治疗帕金森病非运动症状提供参考。展开更多
文摘A robust and efficient algorithm is presented to build multiresolution models (MRMs) of arbitrary meshes without requirement of subdivision connectivity. To overcome the sampling difficulty of arbitrary meshes, edge contraction and vertex expansion are used as downsampling and upsampling methods. Our MRMs of a mesh are composed of a base mesh and a series of edge split operations, which are organized as a directed graph. Each split operation encodes two parts of information. One is the modification to the mesh, and the other is the dependency relation among splits. Such organization ensures the efficiency and robustness of our MRM algorithm. Examples demonstrate the functionality of our method.
文摘This paper proposes a new computer aided pattern design system(CAPDS)in which a uniformmathematical expression is used to construct different objects. In the geometric model, 3 B-splineis adopted as a line model. The new system with uniform mathematical expression has the distin-guishing features: curve smoothness and fidelity, convenience to process graphic data in thedatabase and etc.. This paper presents the data structure, the program structure and also the implementation.
文摘Data structure is the core course for computer science majors.How to improve their‘computational thinking’ability is crucial and challenging in this course.To optimize the teaching effect,a classroom teaching model is proposed.This model combines Yu Classroom online teaching tools,Chinese university MOOC teaching resources and BOPPPS model.The empirical experiment was implemented and the results showthat the comprehensive application of this teaching model helps to cultivate students’high-level cognitive ability of‘analysis,evaluation and creation’.It is proved the validity of this teaching model improve students’.
文摘An object oriented data modelling in computer aided design (CAD) databases is focused. Starting with the discussion of data modelling requirements for CAD applications, appropriate data modelling features are introduced herewith. A feasible approach to select the “best” data model for an application is to analyze the data which has to be stored in the database. A data model is appropriate for modelling a given task if the information of the application environment can be easily mapped to the data model. Thus, the involved data are analyzed and then object oriented data model appropriate for CAD applications are derived. Based on the reviewed object oriented techniques applied in CAD, object oriented data modelling in CAD is addressed in details. At last 3D geometrical data models and implementation of their data model using the object oriented method are presented.
文摘Observability and traceability of developed software are crucial to its success in software engineering.Observability is the ability to comprehend a system’s internal state from the outside.Monitoring is used to determine what causes system problems and why.Logs are among the most critical technology to guarantee observability and traceability.Logs are frequently used to investigate software events.In current log technologies,software events are processed independently of each other.Consequently,current logging technologies do not reveal relationships.However,system events do not occur independently of one another.With this perspective,our research has produced a new log design pattern that displays the relationships between events.In the design we have developed,the hash mechanism of blockchain technology enables the display of the logs’relationships.The created design pattern was compared to blockchain technology,demonstrating its performance through scenarios.It has been determined that the recommended log design pattern outperforms blockchain technology in terms of time and space for software engineering observability and traceability.In this context,it is anticipated that the log design pattern we provide will strengthen the methods used to monitor software projects and ensure the traceability of relationships.
文摘The proliferation of textual data in society currently is overwhelming, in particular, unstructured textual data is being constantly generated via call centre logs, emails, documents on the web, blogs, tweets, customer comments, customer reviews, etc.While the amount of textual data is increasing rapidly, users ability to summarise, understand, and make sense of such data for making better business/living decisions remains challenging. This paper studies how to analyse textual data, based on layered software patterns, for extracting insightful user intelligence from a large collection of documents and for using such information to improve user operations and performance.
文摘目的:探讨针灸治疗帕金森病非运动症状(PD-NMS)患者的辨证取穴规律,为临床治疗PD-NMS患者提供帮助。方法:采用系统性文献检索策略,查询中国知网(CNKI)、中国生物医学文献数据库(CBM)、维普中文期刊服务平台、万方数据知识服务平台(Wanfang Data)、PubMed、Embase、Web of Science等中英文数据库中有关针灸治疗PD-NMS的相关文献,提取症状、取穴处方信息构建医案数据库,采用隐结构模型、频繁项集分析等方法,分析针灸治疗PD-NMS的辨证取穴规律。检索时限均为建库至2025年2月28日。结果:系统检索中英文数据库,筛选针灸干预PD-NMS的临床文献46篇。在1 366份病历资料中提取71项症状体征、108个精准穴位定位点及114个穴位配伍方案构建结构化数据库,解析PD-NMS中医证型与取穴模式的对应规律。对症状、腧穴、证型进行频繁项集分析,挖掘出症状-腧穴频繁项集5项,包括五心烦热+腰酸+睡眠障碍+太冲等;证型-症状-腧穴频繁项集5项,包括肝肾阴虚证+五心烦热+腰酸+睡眠障碍+太冲+三阴交等。针灸治疗PD-NMS多以太冲、风池、合谷为主穴。结论:针灸治疗帕金森病非运动症状多以太冲、风池、合谷为主穴,配穴依据临床情况辨证取穴,此可为临床治疗帕金森病非运动症状提供参考。
