The cleaned-up data is then converted from a database format to a warehouse format. Once stored in the warehouse, the data goes through sorting, consolidating, and summarizing, so that it will be easier to use. Over time, more data is added to the warehouse as the various data sources a...
网络释义 1. 数据仓库与数据挖掘 DB2... ... 相关标签:DB2 errorcode数据仓库与数据挖掘Data Warehouse and Data Mining所属类别:数据库 DB2 ... www.chinaprj.cn|基于18个网页 2. 资料仓储与资料探勘 ... 作业研究( Operations Research)资料仓储与资料探勘(Data Warehouse and Data Mining) 资讯检索( In...
DataWarehouseandDataMining.ppt,数据仓库与数据挖掘综述;提纲;数据仓库概念;基本概念—数据仓库;基本概念—数据仓库特征 [Inmon,1996];基本概念—Data Mart, ODS;基本概念—ETL, 元数据,粒度,分割;对数据仓库的一些误解;提纲;数据仓库体系结构及组件;体系结构 [Pieter ,1
4) multi-database mining 多数据库挖掘 1. This paper proposed synthesis correlation to resolve conflicts and a new algorithm PNAR_MDB for mining NARs in multi-database on base of previous work on multi-database mining. 论文的研究成果如下:(1)当同时挖掘多数据库中的正负关联规则时,有可能会...
A data warehouse is a subject- oriented, integrated, time-variant and non-volatile collection of data that is required for decision making process. Data mining involves the use of various data analysis tools to discover new facts, valid patterns and relationships in large data sets. The data ...
Data Mining --- DataWareHouse 一、数据仓库 定义:面向主题、集成的、时变的、非易失的数据集合,并支持管理决策。 数据仓库(联机分析处理OLAP)VS 数据库系统(联机事务处理OLTP):OLTP面向顾客用于查询处理,OLAP面向分析员用于数据分析;OLTP管理当前数据,OLAP管理大量历史数据;OLTP采用ER模型,OLAP采用星形或雪花模型。
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DataWarehouse Task-relevantData Selection DataMining PatternEvaluation DataMining:OnWhatKindofData? Relationaldatabases Datawarehouses Transactionaldatabases AdvancedDBsystemsandinformationrepositories Object-orientedandobject-relationaldatabases Spatialdatabases
Data Mining in Data WarehouseRatings: (4)Views: 845Share this blog:What is Data Mining? Data Mining is a set of processes related to analyzing and discovering useful, actionable knowledge buried deep beneath large volumes of data stores or data sets. This knowledge discovery involves finding patt...
Data warehouse refers to the process of compiling and organizing data into one common database, whereas data mining refers to the process of extracting useful data from the databases. The data mining process depends on the data compiled in the data warehousing phase to recognize meaningful patterns...