基于CWM的ODS元模型设计技术的研究与实践

在数据仓库系统的DB-ODS-DW三层体系结构中,ODS充当了承上启下的重要角色,但传统的ODS构建技术和元数据管理方法成本较高,而且在不同厂商的数据仓库和业务分析工具之间的互操作困难.以特种设备检验机构为背景,以特种设备事故分析需求为驱动,提出了一种基于公共仓库元模型的ODS元模型构建技术,进而使用JMI对元模型予以实现.该方法可提高模型的重用性,并对各工具间提供了公共的交换机制,降低了开发成本.     

支持Portlet互操作的企业信息集成平台研究

在Portlet1.0的基础上,提出一个支持Portlet互操作的企业信息集成框架,并对框架的层次结构、核心模块、互操作流程及关键技术进行详细论述.     

数据仓库集成框架MI-DAWA的设计与实现

在对数据仓库集成技术研究的基础上,结合一些有代表性的商用高端数据仓库产品,设计了一个基于数据仓库的集成框架MI-DAWA,并且实现了MI-DAWA对元数据管理工具、ETL工具,OLAP SERVER等商用高端数据仓库产品的集成,能有效提高数据仓库建设的效率,非专业人员也可快速实现一个数据仓库过程.MI-DAWA已经在本地某行业数据仓库及辅助决策系统中投入了实际应用.最终实现业务分析人员驱动的、程序化的数据仓库过程是MI_DAWA正待解决的问题.     

空间信息框架研究

空间信息呆是空间信息基础设施建设的主要目标。空间信息框架是建立在分布式网络基础上的，有共同的几何参考坐标，有公共的基础框架信息，可支持空间数据的集成、融合和互操作，包括分布式异构的空间数据库、数据仓库和信息系统，它不量个集中式的系统，是由分布在互联网上的节点组成，在物理上是分散的，在逻辑上是一个整体，向用户提供统一的视图。     

数据仓库ETL元模型设计

针对传统的ETL(Extract/Transform/Load)开发方法难以满足企业的决策需求,复杂性和高效性是ETL开发面临的两大主要问题.为此,在数据仓库系统统一集成建模框架下,为提高管理质量和快速性,提出一种数据仓库ETL元模型设计方法,取代了以往在特定的数据仓库中对ETL建模的方法,使得ETL过程较早地进入数据仓库设计阶段,实现了ETL与数据仓库在概念层上的无缝融合,减少了开发时间和成本代价.最后通过模型实际应用,验证了方法的可行性和高效性.     

基于元数据模型的数据仓库集成

信息供应链中拥有的大量元数据需要在数据仓库中集成,介绍了元数据集成发展过程,并根据公共元数据模型（CWM）的标准提出基于元数据模型的数据仓库集成方法,能有效解决以往元数据互操作的复杂性问题。     

互操作人行为建模体系研究

目前人行为建模在虚拟人内部之间的交互交互方式,虚拟人与环境交互的方式方面存在一定的局限.基于互操作建模理论,构建了互操作总体框架,重点分析了"人引擎",多层次语言模块特点和功能.理论上以此为基础建立的总体框架可以实现虚拟人相互之间的信息,行动、目的等的交互,同时也可以实现虚拟人与环境的交互.对于互操作人行为建模研究具有一定的指导意义.     

基于数据仓库与数据挖掘技术的决策支持系统

本文提出了一种基于数据仓库的数据挖掘系统的决策支持系统的框架。该系统把数据仓库、数据挖掘工具和知识库结合在一起,提高了数据挖掘的效率。     

基于Multi-Agent的主动实时数据仓库研究

传统的数据仓库不能提供实时查询,并且当前的主动实时数据仓库在实时性方面和分布式环境下存在许多不足,针对当前主动实时数据仓库存在的不足,提出基于Multi-Agent的主动实时数据仓库的基本框架,一方面借助了Agent的基本特性提高了数据仓库的主动性和实时性,另一方面采用方案Agent和集成Agent解决了分布式环境下数据仓库集成问题。     

基于IF理论的分布式系统语义互操作研究

信息流理论是关于分布式系统中信息流动的数学模型,它关注信息中的语义,可作为语义信息理论的基础.本文主要介绍在异构的分布式数字博物馆语义互操作的研究和应用中,信息流作为一种分析和实现语义互操作的理论框架,为研究分布式系统的语义互操作问题提供了理论基础.     

数据仓库中的元数据管理

本文首先介绍了典型的元数据管理结构;然后讨论了元数据的互操作和集成问题;最后,提出了一种多级邦联的元数据管理结构,并探讨了数据仓库与信息门户之间的元数据共享与交换问题。     

Interoperability issues in heterogeneous network management

The presence of dissimilar network models and standards necessitates interoperability as a means of achieving ubiquitous connectivity and management. The primary focus of this paper is to identify interoperability issues, independent of the network management model, which form the basis for developing interworking paradigms. Network Management and Interoperability related concepts and terminology are introduced and a generic network management framework is presented. Based on the generic framework, interoperability issues for developing paradigms are identified systematically. Different paradigms for interoperability are described and compared. The techniques used by these paradigms in addressing the issues identified are discussed.     

城市轨道交通线网数据中心与评估决策平台

在分析网络化运营条件下大规模数据特征的基础上,根据业务系统的数据融合需求,提出城市轨道交通数据中心平台的分层框架和功能定位。探讨了线网管理的数据结构体系、数据仓库的递阶逻辑建模、面向运营业务决策的应用集市等构建方法,并以线网客流特征识别的业务应用为对象,提出了数据集市的关联规则挖掘原理、预测立方体在贯通多类运营评估应用的计算方法。结合某城市轨道交通数据中心建设案例,描述了基于数据仓库的搭建过程及相关业务的调用逻辑,表明了线网数据管理对跨业务系统融合数据的意义,有效地提高了运营管理效率。     

A formal framework for query decomposition and knowledge integration in data warehouse federations

A federation of data warehouses is understood as a set of data warehouses, which can be processed as a whole in the logic level. Physically, the federation does not gather data into one place. This paper presents a formal framework for data and knowledge processing in data warehouse federations. The management system for a data warehouse federation consists of an user interface enabling presentation of user queries, a program for query decomposition and a program for integrating knowledge coming from different data warehouses as the answers to a user query. We propose a model for query decomposition process and knowledge integration. It contains also the algorithm for knowledge inconstancy processing. This kind of inconsistency often occurs since very often the knowledge extracted from different data warehouses refers to the same subject, but is not consistent.     

基于RDF多代理网络管理模型的设计与实现

网络管理是典型的需要数据共享和互操作的分布式环境。利用强大的语义支撑工具资源描述框架RDF及其扩展，提出了一个新型的多代理网络管理知识模型。该知识模型能有效地进行数据共享和互操作，其中采用了本体方法论。     

基于光纤传感技术的油库监测系统的设计

国内发生的几起油库爆炸事故,使人们逐渐认识到油库实时监测以及信息及时反馈的重要性和迫切性。本文根据我国目前的实际情况,在对影响油库安全的部分物理参数分析的基础上,提出了通过光纤传感器以及profibus和Internet网络作为传输介质进行油库监测的解决方案,可实现对油库状态的实时远程自动监测,并通过互联网及时反馈油库安全的重要参数。     

Industrial blockchain based framework for product lifecycle management in industry 4.0

Product lifecycle management (PLM) aims to seamlessly manage all products and information and knowledge generated throughout the product lifecycle for achieving business competitiveness. Conventionally, PLM is implemented based on standalone and centralized systems provided by software vendors. The information of PLM is hardly to be integrated and shared among the cooperating parties. It is difficult to meet the requirements of the openness, interoperability and decentralization of the Industry 4.0 era. To address these challenges, this paper proposed an industrial blockchain-based PLM framework to facilitate the data exchange and service sharing in the product lifecycle. Firstly, we proposed the concept of industrial blockchain as the use of blockchain technology in the industry with the integration of IoT, M2M, and efficient consensus algorithms. It provided an open but secured information storage and exchange platform for the multiple stakeholders to achieve the openness, interoperability and decentralization in era of industry 4.0. Secondly, we proposed and developed customized blockchain information service to fulfill the connection between a single node with the blockchain network. As a middleware, it can not only process the multi-source and heterogeneous data from varied stages in the product lifecycle, but also broadcast the processed data to the blockchain network. Moreover, smart contract is used to automate the alert services in the product lifecycles. Finally, we illustrated the blockchain-based application between the cooperating partners in four emerging product lifecycle stages, including co-design and co-creation, quick and accurate tracking and tracing, proactive maintenance, and regulated recycling. A simulation experiment demonstrated the effectiveness and efficiency of the proposed framework. The results showed that the proposed framework is scalable and efficient, and hence it is feasible to be adopted in industry. With the successful development of the proposed platform, it is promising to provide an effective PLM for improving interoperability and cooperation between stakeholders in the entire product lifecycle.     

A semantic interoperability framework for software as a service systems in cloud computing environments

In cloud computing environments in software as a service (SaaS) level, interoperability refers to the ability of SaaS systems on one cloud provider to communicate with SaaS systems on another cloud provider. One of the most important barriers to the adoption of SaaS systems in cloud computing environments is interoperability. A common tactic for enabling interoperability is the use of an interoperability framework or model. During the past few years, in cloud SaaS level, various interoperability frameworks and models have been developed to provide interoperability between systems. The syntactic interoperability of SaaS systems have already been intensively researched. However, not enough consideration has been given to semantic interoperability issues. Achieving semantic interoperability is a challenge within the world of SaaS in cloud computing environments. Therefore, a semantic interoperability framework for SaaS systems in cloud computing environments is needed. We develop a semantic interoperability framework for cloud SaaS systems. The capabilities and value of service oriented architecture for semantic interoperability within cloud SaaS systems have been studied and demonstrated. This paper is accomplished through a number of steps (research methodology). It begins with a study on related works in the literature. Then, problem statement and research objectives are explained. In the next step, semantic interoperability requirements for SaaS systems in cloud computing environments that are needed to support are analyzed. The details of the proposed semantic interoperability framework for SaaS systems in cloud computing environments are presented. It includes the design of the proposed semantic interoperability framework. Finally, the evaluation methods of the semantic interoperability framework are elaborated. In order to evaluate the effectiveness of the proposed semantic interoperability framework for SaaS systems in cloud computing environments, extensive experimentation and statistical analysis have been performed. The experiments and statistical analysis specify that the proposed semantic interoperability framework for cloud SaaS systems is able to establish semantic interoperability between cloud SaaS systems in a more efficient way. It is concluded that using the proposed framework, there is a significant improvement in the effectiveness of semantic interoperability of SaaS systems in cloud computing environments.     

An OSCA™ architecture characterization of network functionality and data

This article demonstrates that the Bellcore OSCA architecture can serve as a basis for the metaarchitecture for software architectures that must support interoperability among functionality that traditionally has resided in operation systems and functionality that traditionally has resided in network elements (NE) (i.e., interoperability among operations functionality and network functionality). The need for this interoperability is driven by such telephone company business needs, as the need for customers to access operations capabilities spanning operations systems and NEs, the need for new service offerings to span operations systems and NEs, the need for a flexible environment for service development, and the need to manage all corporate data as a company resource. As a result, it is becoming beneficial to apply interoperability requirements to the network functionality that interfaces with operations systems. Therefore, it is reasonable to apply the OSCA architecture to network functionality. This article applies the OSCA architecture interoperability principles of separation of concerns to current and emerging network functionality. It demonstrates that this functionality can be partitioned among the three OSCA architecture layers of corporate data, processing, and user, and that there are a number of benefits to applying the OSCA interoperability principles to network functionality.