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基于VB的一种可视化数据采集系统 总被引:2,自引:0,他引:2
本文利用VB语言环境建立了一种可视化数据采集系统,结合VB中的插件用自制插件,在设计状态下形成了一种可视化、可随意设计采集框图及信号流线,在此基础上用插件自动形成程序代码,将复杂的采集程序装起来,从而形成高效的数据采集系统。 相似文献
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提出一种环境温度自动测量和分析系统。测量系统以K189CS2单片机为核心,外围采用Dallas公司的单线器件作为温度传感器和存储器,测量系统能对环境温度进行定时自动测量并存储测量结果。分析系统设置在PC机中,分析软件用Visual Basic语言编写。通过RS-232接口,分析系统可将存储在单片机中的温度数据提取到PC机中进行分析。详细介绍了系统的工作原理,并给出了一组温度数据的分析结果。 相似文献
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COBOL 语言是一种适合于商业及数据处理的程序设计语言;C 语言是一种通用的程序设计语言。CCTS 系统能够将用 COBOL 语言书写的程序自动地转换成用 C 语言表示的功能等价的程序。本文讨论了 COBOL 语言与 C 语言的差别,转换的意义,转换的可能性及 CCTS 系统的设计思想及实现策略。 相似文献
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提出一种应用于体育节目音频分析中的关键词检索系统框架,并利用关键词检索结果对比赛实现了体育类别的自动判断.采用一种基于距离测算和基于模型选择融合的前端音频处理模块,实现了对复杂音频流中语音的高效提取;采用基于LVCSR系统的关键词系统框架,利用少量体育节目语音数据,对声学模型进行了自适应,构建体育类语言模型同时提出一种针对特定关键词词频分布的语言模型自适应,较大幅度提高了关键词系统的检出性能;针对不同体育比赛选择特征关键词,并利用关键词系统检索结果实现了比赛类别的自动判定,在由七种体育共15场比赛构成的测试集中,判定正确率达到100%. 相似文献
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LS SIMD C编译器的数据通信优化算法 总被引:1,自引:1,他引:0
1 引言当前理想的程序自动并行化系统的实现存在许多难于解决的问题,因此较为流行的并行计算方法是利用并行语言编写并行程序,编译器对并行程序进行编译生成相应的节点程序执行。并行语言按并行执行的粒度分为基于任务的并行语言(主要面向一般应用领域的计算)和数据并行语言(主要应用于科学数值计算),典型的数据并行语言如HPF。对于数据并行语言而言,程序执行的并行性已由程序设计人员根据程序中的数据相关性给出。因此,如何确定数据的分布、优化数据的通信是影响并行程序执行效率的重要问题。数据分布大致可以分为两个阶段:首先对源程序中数据的相关性分析得到数据在抽象处理机上的分布,然后将抽象处理机上的数据分布映射到物理处理机上。数据分布的确定通常有以下几种实现方式:一种是由程序员给出抽象数据分布,编译 相似文献
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C语言它作为计算机程序中的一种语言,它不仅具有高级语言的特点,同时还兼具低级汇编语言的特点。数据库作为一种利用计算机进行辅助处理和管理数据的方法,它的主要工作范畴就是研究与探讨如何能更好的存储和组织数据,又如何能够更高效的处理数据。本文就通过介绍C语言在数据库中的应用,从而说明C语言的重要性。 相似文献
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针对车间级生产过程的自动控制,我们研制了小型的分布式计算机控制系统MiniDCS,为了便于应用软件的设计,为该系统设计了一种工程技术人员易于掌握的组态语言,称BPC语言(Block Process Control Language)。本文介绍BPC语言的设计及实现。 相似文献
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We b中蕴藏着大量有价值的数据,过去十几年中,针对We b信息抽取技术已有较多的研究。而现有的研究和系统多集中在数据抽取处理阶段,忽略或简化了完整的We b信息抽取过程需要的网页自动浏览导航和集成处理。为克服这些不足,提出了包含浏览导航、数据抽取和集成过程的三阶段We b信息抽取处理模型,基于此进一步研究提出了自动浏览导航模型,并设计实现了网页自动浏览导航规则语言。研究提出了一种We b数据抽取、转换和集成(extraction-transformation-integration,ETI)模型,设计实现了一套灵活有效的数据集成和流程控制规则语言,能有效地维护跨网页数据记录的复杂关系,并提供灵活的流程控制能力。抽取实例的结果表明,该规则语言和系统可有效完成全过程化的We b信息抽取集成处理功能。 相似文献
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XBRL is a specification used to exchange financial/economic information. It is actively used by many international institutions and agencies. In the USA, Canada, Europe, China, etc. all financial entities and companies quoted on the stock market have to report compulsorily to the supervisory and regulatory authority using the XBRL specification. XBRL consists of a set of taxonomies defining different accounting regulations for a specific statement and the statement itself. Reports are generated from various sources and are validated at origin. XBRL displays business information which is multidimensional and whose logical destination for storage is a data warehouse. The proposal presented here focuses on the automation of the mapping between XBRL and the multidimensional data model (MDM) and includes a formalization of the validation rules in the MDM. The approach is designed in accordance with the Model Driven Architecture (MDA) paradigm which consists of a new way to validate XBRL reports through an RDBMS, and offers a proof-of-concept. Additionally, the study aims to provide more clarity about XBRL, a highly complex language made by and for expert users, and to improve interoperability between applications. The proposal also analyses certain semantic questions associated with the XBRL formula specification and its performance. 相似文献
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Danilo Horta 《Theoretical computer science》2011,412(42):5854-5870
This paper is concerned with the computational efficiency of fuzzy clustering algorithms when the data set to be clustered is described by a proximity matrix only (relational data) and the number of clusters must be automatically estimated from such data. A fuzzy variant of an evolutionary algorithm for relational clustering is derived and compared against two systematic (pseudo-exhaustive) approaches that can also be used to automatically estimate the number of fuzzy clusters in relational data. An extensive collection of experiments involving 18 artificial and two real data sets is reported and analyzed. 相似文献
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Developing common standards, such as eXtensible Business Reporting Language (XBRL), to smoothen information sharing in the value chain is considered the leading issue for releasing the potential of e-business. Data standards such as XBRL play a critical role in an increasingly networked environment. Despite promises of XBRL to improve data accuracy, few empirical studies have tested the impact of early XBRL adoption on the quality of information. Theories explaining information technology (IT) productivity paradox indicate that value realization from IT innovations may experience time lag due to the need for technology refinement and diffusion. This study examines the impact of early adoption of XBRL on analysts’ forecast accuracy with empirical data of Chinese firms. The uncertainty related to the unproven technology, such as information errors, has decreased analysts’ forecast accuracy during the early adoption period among firms in an economy with little public information on listed firms. Our findings have practical implications that will facilitate the quality improvement of financial information in a networked business environment. Our findings highlight the importance of quality assurance and policy enforcement for value realization from XBRL adoption to regulators, filers, information consumers, the accounting profession and other stakeholders. 相似文献
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介绍通用业务报告语言XBRL中的技术规范、分类标准和实例文档的相关概念,对其在财务报表处理过程中的核心思想进行分析,通过实例描述财务报表映射为XML文档、XML解析生成标准XBRL实例文档和XSLT展示XBRL文档的3个步骤和财务报表实现网络共享的全过程。 相似文献
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The eXtensible Business Reporting Language, or XBRL, is a royalty-free language based on XML that provides for a standardization of method and content in the exchange of business information. XBRL aims to reduce inefficiencies in data exchange and analysis, coupled with an improved comparability of information. The first taxonomies based on XBRL have:
- identified opportunities for significant improvement in the efficiency of data exchange and automated analysis.
- shown that comparisons between and the compatibility of information within business reports have not improved due to XBRL.
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关系数据库是行业中广泛使用的数据存储和管理方案,根据自定义的本体模型从关系型数据中进行知识抽取并转换成RDF是构建行业知识图谱的关键步骤。但是当前关系数据的知识抽取方案,需要进行大量的查询语句和映射的编辑工作,映射语句编码的工作量和映射的维护是关系型数据的知识抽取的主要障碍。针对以上问题提出一种能够自动解析关系数据和本体模型并生成对应关系,支持可视化调整和修正的关系型知识抽取转换框架。该框架简化了映射编辑和维护工作,提供了更自动化和简单易用的关系型数据的知识抽取的解决方案。最后应用该框架进行知识图谱的构建的实验表明,该框架能够较为高效地对关系数据进行知识抽取并转换成RDF。 相似文献
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The paper examines the current state of research as regards the eXtensible Business Reporting Language (XBRL) by using the literature review methodology. The results show that an empirical-quantitative research design is used most of the time. The contributions vary in substance in terms of research on XBRL and research with XBRL. Research with XBRL focuses on the development of conceptual XBRL extensions. Work on XBRL considers, for example, the changes in reporting as a result of XBRL as well as the acceptance and enforcement of financial reporting standards. The results point to open issues and are relevant for research and practice. 相似文献
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