Data Generalization

Data Generalization And thought commentary ask forgeing The convalescence of info from informationbases, and the occupation of aggregate functions ( such as summation, counting, etc.) to the information represent an important functionality of infobase systems. However, dubiousness processing is non data mining. Query processing: Retrieves sets of data from databases and can compute aggregate functions on the retrieved data. Data mining: analyzes the data and discovers interesting patterns hidden in the database. What is imagination description? A concept usually refers to a disposition of data such as stereos, frequent buyers, down students, and so on. As a data mining task, concept description is not a simple enumeration of the data. Instead, it generates descriptions for pic and comparison of the data. Concept description is sometimes called class description when the concept to be described refers to a class of objects. portrayal provides a compendious and instruct summarization of the given collection of data. Concept or class comparison (also known as discrimination) provides descriptions comparing two or more collections of data. What is Data installation?

Is a process which abstracts a large set of task-relevant data in a database from a relatively low conceptual level to high conceptual levels. Concept description has reason out ties with data generalization. devoted the large amount of data stored in databases, it is useful to be able to describe concepts in brief terms at extrapolate (rather than low) levels of abstraction. Allowing data sets to be generalized at two-fold level s of abstraction facilitates users in examin! ing the general behavior of the data. exercising: effrontery the All Electronics database, for example, instead of examining individual customer transactions, sales managers may prefer to view the data generalized to high levels, such as summarized by customer groups...If you want to grow a full essay, order it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay