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《计算机科学与探索》2017,(1):114-123
互联网上大量论坛使用开源软件生成,针对这类论坛,提出了针对论坛网页信息抽取的基于模板的信息抽取方法。首先给出了基于网页结构相似度的簇划分策略,并通过实验证明了该策略优于直接基于软件版本号等直观类别的划分策略;其次提出了基于开源软件特征的聚类算法,能够根据网页相似度将大规模开源软件生成的论坛网页进行有效的自动划分,形成可标注类别。实验表明,该方法不仅保持了基于模板的抽取方法所具有的高准确率的优点,同时弥补了其模板配置与维护代价高的缺点。 相似文献
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在舰艇综合训练仿真系统的研究中,针对舰艇综合训练仿真系统在多种使用模式下的多类系统组分训练问题,分析了其问题域和基本特征,确定了系统的基本组成和用途.采用面向对象分析和多元组描述方法,设计了一种柔性组合式系统结构模型(FCSAM),并建立了基于作战信息流的系统结构映射关系.采用HLA标准接口和订制的系统信息交互协议,通过生成的系统使用模式结构关系配置文件,实现了舰艇综合训练模拟系统的应用集成,并给出了系统结构组配与工作流程.经实际应用表明,FCSAM的适应性强、集成性和可扩展性好,能够灵活地满足新型舰艇综合训练模拟系统的多层次多用途的使用要求,有效地提高了系统的训练效率. 相似文献
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肖寒 《数字社区&智能家居》2009,(20)
采用代码自动生成技术能为软件开发带来代码质量的提高、开发风险的降低等优点,提高了软件开发的速度和质量。该文描述了一种基于模板的代码自动生成系统的设计和实现,并利用它完成了基于J2EE-Web应用系统的代码自动生成工作。 相似文献
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一种基于抽象模板的语义Web服务组合框架 总被引:2,自引:0,他引:2
提出一个基于抽象模板的语义Web服务组合框架,并详细分析了基于该框架的抽象模板检索、数据预处理以及模板修正的实现方法.为了提高模板检索的精确度,框架采用特征匹配和图匹配相结合的方法,实现了抽象模板和用户请求之间的相似度计算.同时利用数据预处理过程构建服务之间的依赖关系图,除去了冗余的服务,并事先验证了用户请求的可满足性.根据服务依赖关系图,框架使用启发式规划修改算法(HPAA)实现了模板的自动修正,并提供了对启发式策略的灵活配置,提高了服务组合的适应性和扩展性.最后对HPAA算法中所使用的启发式策略进行了实验,验证了算法在解决大规模问题上的适应性和可靠性. 相似文献
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一种ERP环境下综合财务管理系统的设计与实现 总被引:13,自引:1,他引:13
财务管理是ERP系统中的核心环节。文章以大型制造业企业的实际运行情况为背景,为解决成本核算的准确性以及管理结构的复杂性设计了一种外延功能、面向业务流程、三层垂直组织结构的综合财务管理系统。并详细介绍了基于RUP的开发过程,C/S与B/S结构结合的系统结构,以及使用通用模板的系统实现方法。 相似文献
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张涛 《计算机测量与控制》2015,23(1):86-89
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值. 相似文献
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In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times. 相似文献
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《Information & Management》2016,53(6):787-802
Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice. 相似文献
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Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs. 相似文献
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Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel. 相似文献
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《浙江大学学报:C卷英文版》2014,(11)
正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and 相似文献
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Zhao-hui WU 《浙江大学学报:C卷英文版》2014,(10)
正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control 相似文献
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《浙江大学学报:C卷英文版》2014,(10)
正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate 相似文献
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《浙江大学学报:C卷英文版》2014,(8)
正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate 相似文献