基于Web 2.0的软件工程实践教学平台设计

软件工程实践教学平台在运行过程中,存在没有全方位整合教学资源的问题。为此,提出基于Web 2.0的软件工程实践教学平台设计研究。将恩智浦iMX8MM开发板DB11作为平台硬件装置,构建Web 2.0技术为支撑的软件工程实践教学平台构架,动态整合工程实践教学资源,并引入单参数项目信息函数作为软件工程实践教学资源的属性进行划分。在测试结果中,进程/线程交换率不仅能够结合并行请求规模实现适应性调整,而且调整的幅度较大。

Weighted PageRank Algorithm Search Engine Ranking Model for Web Pages

As data grows in size,search engines face new challenges in extracting more relevant content for users’searches.As a result,a number of retrieval and ranking algorithms have been employed to ensure that the results are relevant to the user’s requirements.Unfortunately,most existing indexes and ranking algo-rithms crawl documents and web pages based on a limited set of criteria designed to meet user expectations,making it impossible to deliver exceptionally accurate results.As a result,this study investigates and analyses how search engines work,as well as the elements that contribute to higher ranks.This paper addresses the issue of bias by proposing a new ranking algorithm based on the PageRank(PR)algorithm,which is one of the most widely used page ranking algorithms We pro-pose weighted PageRank(WPR)algorithms to test the relationship between these various measures.The Weighted Page Rank(WPR)model was used in three dis-tinct trials to compare the rankings of documents and pages based on one or more user preferences criteria.Thefindings of utilizing the Weighted Page Rank model showed that using multiple criteria to rankfinal pages is better than using only one,and that some criteria had a greater impact on ranking results than others.

Assessing a Model-Driven Web-Application Engineering Approach

Model-Driven Engineering (MDE) by reframing software development as the transformation of high-level models, promises lots of gains to Software Engineering in terms of productivity, quality and reusability. Although a number of empirical studies have established the reality of these gains, there are still lots of reluctances toward the adoption of MDE in practice. This resistance can be explained by several technological and social factors among which a natural scepticism toward novel approaches. In this paper we attempt to provide arguments to help alleviate this scepticism by conducting an assessment of a MDE approach. Our goal is to show that although this MDE is novel, it retains similarities with the conventional Software Engineering approach while automating aspects of it.

基于图匹配的Web实体抽取算法研究

现今Web中存在大量缺失、不一致及不精确的数据,而传统的搜索引擎只能根据关键词返回文档片段,无法直接获取目标实体。提出一种新的基于图匹配的实体抽取算法GMEE(Graph Matching Based Entity Extraction),首先将片段按词语分割,进行实体的初步筛选;然后根据各实体之间的结构和语义关系建立“加权语义实体关联图”;最后利用“最大公共子图匹配”策略抽取目标实体。实验结果表明,提出的算法在不需要大量参数训练及传递的情况下,能够对抽取的实体集进行有效的精简,既保证了召回率、准确率,又提高了抽取过程的可解释性。

基于思政元素的软件工程Web课程教学研究

软件工程专业在建设思政课程这一前沿任务中面临新挑战,体现出思政要素融合度较低,教学过程与思政要素结合较为生硬、沉浸感较差等问题。为了提升软件工程课程与思政元素的有机结合,提出一种Web课程教学与思政要素的融合模式。该融合模式从课程特点、知识点、教学案例、扩展材料、课程管理等角度给出了在Web类课程中共性较强的详细设计方案。

新工科背景下基于OBE理念的“Web前端开发”课程教学改革

在新工科背景下,随着Web前端技术的发展,“Web前端开发”课程面临着教学内容快速迭代、学生实践能力无法跟上技术发展等问题。OBE教学理念以学生为本,为解决上述问题提供了新思路。文中分析了OBE理念与“Web前端开发”课程的契合度,提出在教学目标、教学过程、教学方法和教学评价中深度融合OBE理念,构建“以学生为中心”的“Web前端开发”课程,包括重新定位教学目标、重构教学内容和学习任务、建立多维度的评价机制等。研究表明,应用OBE理念,能帮助“Web前端开发”课程有效解决教学内容的动态更新问题,进一步强化和培养学生的实践能力,是提高“Web前端开发”课程教学质量的有益尝试,是“Web前端开发”课程教学改革的有效模式。

新工科背景下Web前端开发课程群的教学改革实践

Web前端开发课程具有显著的实践性,传统的教学模式不利于提高学生的各项能力。针对传统教学模式的不足,结合当前Web前端开发的最新理念,文中在教学目标、教学内容、教学方法和考核方式4个方面提出了具体的教学改革措施,旨在培养具有扎实的科学基础和工程能力的新型工科人才。新工科背景下Web前端开发课程群的教学改革实践,以构建基于项目驱动渐进式的Web前端开发课程群为载体,以提高学生的创新能力、实践能力、协作能力和就业能力为目标,通过修订课程群的教学大纲,实现课程内容的系统性、连贯性和实用性,促进相关知识的模块化、学生学习的场景化、课程实践的项目化和课程评价的过程化,从而探索出一种Web前端开发课程教学改革的有效模式,为学生未来的职业发展打下良好的基础,为新工科背景下Web前端开发课程群的教学改革提供理论参考和实践建议。

基于Web的建筑装饰工程数据集成管理平台

为提高数据集成管理综合水平,文章开展基于Web的数据集成管理平台的开发与设计研究。首先,引进Web技术设计针对工程数据的集成管理平台架构,选用S3C-44B0X型号的Web服务器作为平台的主要硬件设备;其次,在硬件设备支撑下,将数据录入平台的中间层,在中间层中进行工程数据的处理;再次,使用MySQL Server2018,建立建筑装饰工程数据仓库;最后,在数据仓库中建立不同工程数据的索引,设计建筑装饰工程数据空间的集成和管理,完成平台开发。实验证明,设计的集成管理平台在实际应用中效果良好,可在确保平台集成管理节点数量被限制的条件下提高集成管理响应速度。

Fuzzy Approach to the Selection of Material Data in Concurrent Engineering Environment

The selection of proper materials for a structural component is critical in engineering design. Existing design procedures may currently be sufficient, especially where experience exists, but fierce industrial competition is spurring the search for improved methods and tools. The main drivers are quality, life-cycle cost, and time-to-market. Improved design efficiency and accuracy may have an enormous impact on the economic viability of the final product. The use of computer-aided systems can assist the designer in selecting the ap- propriate material these may potentially reduce product cost and time-to-market while assisting the concur- rent engineering activities, thereby resolving problems related to materials presented during the initial phase of design. This paper focuses on specific issues such as material selection at early design stage. In this paper material selection algorithm is developed using fuzzy logic technique for selection of proper material from database as per design engineers’ criteria. The information obtained from the selection algorithm is ex- changed through a properly secured web page through pure internet communication to different users in the enterprise so that it can create concurrent engineering environment throughout the product life cycle.

Sina App Engine架构——云计算时代的分布式Web服务解决方案

今天,人类社会的信息基础设施可以说完全建立在互联网之上,从老百姓的日常生活,到企业内部的管理系统,从电子商务、媒体到政府的运作,都已经离不开互联网。互联网从诞生到现在,网站的规模不断扩大,存储和处理的数据量也远远超出了人们的想象,近年来又出现了对信息实时性、多媒体需求大幅增长的现象,互联网架构面临越来越大的挑战。为了应对这些困难,互联网架构领域也出现了许多新动向:LAM户等开源技术成为主流并开始承担关键任务,越来越多的网站开始采用NoSQL为代表的分布式存储和MapReduce为代表的分布式计算,Restful架构风格、消息队列、数据仓库、负载均衡等技术得到了更多关注。本期封面报道,我们特邀请了来自知名互联网企业和技术厂商的众多资深架构师,为您吹响互联网架构的集结号,全方位分析互联网架构方面的热门技术和实战经验。

Incremental View Computation Model for Object-Oriented Information

We introduce a model to implement incremental update of views. The principle is that unless a view is accessed, the modification related to the view is not computed. This modification information is used only when views are updated. Modification information is embodied in the classes (including inheritance classes and nesting classes) that derive the view. We establish a modify list consisted of tuples (one tuple for each view which is related to the class) to implement view update. A method is used to keep views from re-update. Key words object-oriented database - incremental computation - view-computation - engineering information system CLC number TP 391 Foundation item: Supported by the National Natural Science Foundation of China(60235025)Biography: Guo Hai-ying (1971-), female, Ph. D, research direction: CAD and engineering information system.

Product Development Process Simulation for Concurrent Engineering

The simulation of a product development process for concurrent engineering has beenmotivated by the desire to increase productivity by improving the product development pro-cess.In this paper,the IDEF3 process description capture method is discussed.On the basisof IDEF3 method,a simulation system of the product development process for concurrent en-gineering is developed.The architecture of the simulation system is proposed.The simula-tion model is built using object-oriented approach.It employs an event scheduling approachto emulate the product development process.The simulation mechanism based on messagepassing:is also presented.

Website Search Engine Optimization: Geographical and Cultural Point of View

The concept of Webpage visibility is usually linked to search engine optimization (SEO), and it is based on global in-link metric [1]. SEO is the process of designing Webpages to optimize its potential to rank high on search engines, preferably on the first page of the results page. The purpose of this research study is to analyze the influence of local geographical area, in terms of cultural values, and the effect of local society keywords in increasing Website visibility. Websites were analyzed by accessing the source code of their homepages through Google Chrome browser. Statistical analysis methods were selected to assess and analyze the results of the SEO and search engine visibility (SEV). The results obtained suggest that the development of Web indicators to be included should consider a local idea of visibility, and consider a certain geographical context. The geographical region that the researchers are considering in this research is the Hashemite kingdom of Jordan (HKJ). The results obtained also suggest that the use of social culture keywords leads to increase the Website visibility in search engines as well as localizes the search area such as google.jo, which localizes the search for HKJ.

NDT-Suite: A Methodological Tool Solution in the Model-Driven Engineering Paradigm

Although the Model-Driven paradigm is being accepted in the research environment as a very useful and powerful option for effective software development, its real application in the enterprise context is still a challenge for software engineering. Several causes can be stacked out, but one of them can be the lack of tool support for the efficient application of this paradigm. This paper presents a set of tools, grouped in a suite named NDT-Suite, which under the Model-Driven paradigm offer a suitable solution for software development. These tools explore different options that this paradigm can improve such as, development, quality assurance or requirement treatment. Besides, this paper analyses how they are being successfully applied in the industry.

Application of a Web Search Engine in Translating Business Terms in English-Chinese Dictionaries

Web search engines are important tools for lexicography.This paper takes translation of business terms("e-commerce"and"e-business")as an example to illustrate the application of web search engines in English-Chinese dictionary translation,including the methods of(1)finding the potential Chinese equivalents of the English business terms,and(2)selecting typical and proper Chinese equivalents in accordance with the frequencies and the meanings of the English business terms respectively.

基于Web的医学图像处理系统的设计

为了更方便地集成医学图像处理算法,通过分析医学图像处理的特点和结合临床应用的基本需求,文中设计了一套基于Web的医学图像处理系统。该系统主要基于Python语言、Kotlin语言、TypeScript语言、Spring Boot框架、Celery框架和DICOMWeb规范开发,通过将处理任务分解为计算作业实现人工介入操作,并通过对计算作业进行合理的分组实现算法运行环境的隔离。该系统具有易扩展、易部署、易维护和可伸缩的优点,可以方便地构建需要人工介入的医学图像处理任务,在算法足够成熟的时候也能够快速将该流程完全自动化。

基于Web的新工科实训教学信息管理系统

针对传统实训教学安排与管理模式无法满足现有新工科教学需求的问题,设计基于Web的新工科实训教学信息管理系统。系统采用Web Services体系结构,应用数据挖掘技术设计实训教学信息管理内容,应用信息检索技术设计实训教学信息查询模块。测试结果表明,该系统能够满足用户使用需求,在性能上达到了预期设计要求。

Automatic Clustering of User Behaviour Profiles for Web Recommendation System

Web usage mining,content mining,and structure mining comprise the web mining process.Web-Page Recommendation(WPR)development by incor-porating Data Mining Techniques(DMT)did not include end-users with improved performance in the obtainedfiltering results.The cluster user profile-based clustering process is delayed when it has a low precision rate.Markov Chain Monte Carlo-Dynamic Clustering(MC2-DC)is based on the User Behavior Profile(UBP)model group’s similar user behavior on a dynamic update of UBP.The Reversible-Jump Concept(RJC)reviews the history with updated UBP and moves to appropriate clusters.Hamilton’s Filtering Framework(HFF)is designed tofilter user data based on personalised information on automatically updated UBP through the Search Engine(SE).The Hamilton Filtered Regime Switching User Query Probability(HFRSUQP)works forward the updated UBP for easy and accuratefiltering of users’interests and improves WPR.A Probabilistic User Result Feature Ranking based on Gaussian Distribution(PURFR-GD)has been developed to user rank results in a web mining process.PURFR-GD decreases the delay time in the end-to-end workflow for SE personalization in various meth-ods by using the Gaussian Distribution Function(GDF).The theoretical analysis and experiment results of the proposed MC2-DC method automatically increase the updated UBP accuracy by 18.78%.HFRSUQP enabled extensive Maximize Log-Likelihood(ML-L)increases to 15.28%of User Personalized Information Search Retrieval Rate(UPISRT).For feature ranking,the PURFR-GD model defines higher Classification Accuracy(CA)and Precision Ratio(PR)while uti-lising minimum Execution Time(ET).Furthermore,UPISRT's ranking perfor-mance has improved by 20%.

软件工程中Web开发技术的应用研究

我国现代科技迅速发展,Web技术得到越来越多的关注和重视。Web开发技术在实际应用过程中,需要更好地掌握其性质和特点,不断积累实践经验,全面提高开发质量和效率。文章主要阐述Web开发技术在软件工程中的特点,分析Web开发工作常用的方法技术,同时探讨软件工程中Web开发技术应用流程,旨在进一步明确软件工程中Web开发技术的具体应用。