课程文献中心 更多>>

关键词： 专利   Teradata   Reduce   Aster   数据仓库   营销管理   数据分析   SQL  

摘要： 专注于数据仓库，大数据分析和整合营销管理解决方案的厂商Teradata天睿公司（Teradata Corporation）的子公司Aster Data日前宣布，其SQL Map Reduce技术获得了美国第7966340号专利。

关键词： 农产品   数据仓库   价格预测   RBF神经网络  

摘要： 根据农业价格指数构建了农产品价格数据仓库,充分利用长期积累的大量反映价格指标的历史和现在数据资源,并结合径向基函数(RBF)人工神经网络建模,揭示农产品价格与畜牧业、林业与渔业等相关因素价格的动态关系模型。结果表明该模型能够很好地预测以白菜为例的农产品价格,实现农产品区域供求平衡,并为政府和农户提供结构调整的依据。

关键词： 数据库   分布式数据库   知识库   主动数据库   数据仓库   特种数据库  

摘要： 介绍了数据库系统设计过程的六个阶段,即需求分析阶段、概念结构设计阶段、逻辑结构设计阶段、物理结构设计阶段、实施阶段、运行与维护阶段;以分布式数据库系统、知识库系统和主动数据库系统为例,阐述了当前数据库系统研究的现状;结合数据仓库、工程数据库、统计数据库、空间数据库等多种数据库,指出了当前数据库技术的研究热点和发展趋势。

关键词： assembly point   Data warehousing   Electronic Health Records   Patient Care   Individual Characteristics   behavior management   WAREHOUSE  

摘要： Much has been said lately about the inefficiencies and cost of medical care. Improving efficiency can reduce costs and improve outcomes. Industry has used technology for more than 100 years to determine and reevaluate the best way of performing tasks and producing products in an efficient manner. If a problem occurs, technology can be used not only to correct the problem, but also to find ways to identify the best solutions to prevent the problem from happening again. Production is coordinated to the last degree so that, for example, cars with individual characteristics can be produced in a standardized production line. The parts are delivered to the assembly point using on time delivery concepts that reduce need for warehousing.

关键词： PEPTIDE IDENTIFICATION   LIBRARIES   RESOURCE  

摘要： A method for clustering billions of unidentified tandem mass spectra from shotgun proteomics experiments offers new ways of storing, organizing and analyzing proteomics data, with potential benefits to the entire proteomics community.

关键词： Data warehouse   ETL processes   Database   Data mart   OLAP   Conceptual modeling  

摘要： Extraction-transformation-loading (ETL) tools are pieces of software responsible for the extraction of data from several sources, its cleansing, customization, reformatting, integration, and insertion into a data warehouse. Building the ETL process is potentially one of the biggest tasks of building a warehouse; it is complex, time consuming, and consume most of data warehouse project's implementation efforts, costs, and resources. Building a data warehouse requires focusing closely on understanding three main areas: the source area, the destination area, and the mapping area (ETL processes). The source area has standard models such as entity relationship diagram, and the destination area has standard models such as star schema, but the mapping area has not a standard model till now. In spite of the importance of ETL processes, little research has been done in this area due to its complexity. There is a clear lack of a standard model that can be used to represent the ETL scenarios. In this paper we will try to navigate through the efforts done to conceptualize the ETL processes. Research in the field of modeling ETL processes can be categorized into three main approaches: Modeling based on mapping expressions and guidelines, modeling based on conceptual constructs, and modeling based on UML environment. These projects try to represent the main mapping activities at the conceptual level. Due to the variation and differences between the proposed solutions for the conceptual design of ETL processes and due to their limitations, this paper also will propose a model for conceptual design of ETL processes. The proposed model is built upon the enhancement of the models in the previous models to support some missing mapping features. (C) 2011 King Saud University. Production and hosting by Elsevier B.V. All rights reserved.

关键词： 数据仓库   ETL   决策支持   超市  

摘要： 该文介绍了ETL的概念,分析了ETL在数据仓库中的应用,并介绍了一个ETL工具及其应用实例。通过利用ETL工具,可以将数据提取、清理、转换再加载到数据仓库。

关键词： Risk Communication   Data Warehouse   Herd Size   Meat Inspection   Welfare Issue  

摘要： The objective of this paper is to give an overview of existing databases in Denmark and describe some of the most important of these in relation to establishment of the Danish Veterinary and Food Administrations' veterinary data warehouse. The purpose of the data warehouse and possible use of the data are described. Finally, sharing of data and validity of data is discussed. There are databases in other countries describing animal husbandry and veterinary antimicrobial consumption, but Denmark will be the first country relating all data concerning animal husbandry, -health and -welfare in Danish production animals to each other in a data warehouse. Moreover, creating access to these data for researchers and authorities will hopefully result in easier and more substantial risk based control, risk management and risk communication by the authorities and access to data for researchers for epidemiological studies in animal health and welfare.

关键词： 银行数据仓库   治理体系   数据质量   资源优势   金融行业   响应能力   信息化  

摘要： 在信息化应用不断深入的背景下,数据资源优势挖掘,基于数据治理提升业务响应能力等问题已经成为金融行业关注的焦点。本文主要讨论在大型银行数据仓库中构建数据质量治理体系的方法。