Unit 5 Data warehousing and data Mining
Unit 5 Data warehousing and data Mining (Data Visualization and Overall Perspective) Aggregation Data aggregation refers to a process of collecting information from different sources and presenting it in a summarized format so that business analysts can perform statistical analyses of business schemes. The collected information may be gathered from various data sources to summarize these data sources into a draft for data analysis. Data aggregation plays a vital role in finance, product, operations, and marketing strategies in any business organization. Aggregated data is present in the data warehouse that can enable one to solve various issues, which helps solve queries from data sets. Data aggregation work Data aggregation is needed if a dataset has useless information that can not be used for analysis. In data aggregation, the datasets are summarized into significant information, which helps attain desirable outcomes and increases the user experien...