data mining

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data mining

[′dad·ə ‚mīn·iŋ or dād·ə ‚mīn·iŋ]
(computer science)
The identification or extraction of relationships and patterns from data using computational algorithms to reduce, model, understand, or analyze data.
The automated process of turning raw data into useful information by which intelligent computer systems sift and sort through data, with little or no help from humans, to look for patterns or to predict trends.

Data mining

The development of computational algorithms for the identification or extraction of structure from data. This is done in order to help reduce, model, understand, or analyze the data. Tasks supported by data mining include prediction, segmentation, dependency modeling, summarization, and change and deviation detection. Database systems have brought digital data capture and storage to the mainstream of data processing, leading to the creation of large data warehouses. These are databases whose primary purpose is to gain access to data for analysis and decision support. Traditional manual data analysis and exploration requires highly trained data analysts and is ineffective for high dimensionality (large numbers of variables) and massive data sets. See Database management system

A data set can be viewed abstractly as a set of records, each consisting of values for a set of dimensions (variables). While data records may exist physically in a database system in a schema that spans many tables, the logical view is of concern here. Databases with many dimensions pose fundamental problems that transcend query execution and optimization. A fundamental problem is query formulation: How is it possible to provide data access when a user cannot specify the target set exactly, as is required by a conventional database query language such as SQL (Structured Query Language)? Decision support queries are difficult to state. For example, which records are likely to represent fraud in credit card, banking, or telecommunications transactions? Which records are most similar to records in table A but dissimilar to those in table B? How many clusters (segments) are in a database and how are they characterized? Data mining techniques allow for computer-driven exploration of the data, hence admitting a more abstract model of interaction than SQL permits.

Data mining techniques are fundamentally data reduction and visualization techniques. As the number of dimensions grows, the number of possible combinations of choices for dimensionality reduction explodes. For an analyst exploring models, it is infeasible to go through the various ways of projecting the dimensions or selecting the right subsamples (reduction along columns and rows). Data mining is based on machine-based exploration of many of the possibilities before a selected reduced set is presented to the analyst for feedback.

data mining

Analysis of data in a database using tools which look for trends or anomalies without knowledge of the meaning of the data. Data mining was invented by IBM who hold some related patents.

Data mining may well be done on a data warehouse.

ShowCase STRATEGY is an example of a data mining tool.

data mining

Exploring and analyzing detailed business transactions. It implies "digging through tons of data" to uncover patterns and relationships contained within the business activity and history. Data mining can be done manually by slicing and dicing the data until a pattern becomes obvious. Or, it can be done with programs that analyze the data automatically. Data mining has become an important part of customer relationship management (CRM). In order to better understand customer behavior and preferences, businesses use data mining to wade through the huge amounts of information gathered via the Web. See data miner, Web mining, text mining, OLAP, decision support system, EIS, data warehouse and slice and dice.

Doing It Automatically
This BusinessMiner analysis determined that the most influential factor common to non-profitable customers was their credit limit. (Image courtesy of SAP.)
References in periodicals archive ?
Congress gave RMA five years' worth of funding for the data-mining program beginning in 2000, funding that expired in 2005 and since has been extended via an annual appropriation.
5) Law enforcement agencies, when collecting information from different sources, must decide how they will address the issue of cleaning the data, or preparing data for data-mining activities.
Extended Predictive Model Markup Language - Teradata has extended support of the XML-based Predictive Model Markup Language (PMML) to additional data-mining vendors.
Model Management - With Teradata Model Manager, Teradata has simplified the complex data-mining execution process by making it faster and easier for technical as well as nontechnical business users to convert massive amounts of detail data into analytic intelligence.
SAS Institute's data-mining expertise is supported by more than two decades as a recognized leader in data-analysis R&D.
Enterprise Miner software offers the widest range of algorithms in a single package - decision trees, clustering, neural networks, data-mining regression, associations, and others.
Each seminar showcased Enterprise Miner software on HP hardware as the data-mining tool driving a selection of CRM solutions such as campaign marketing, customer analysis and customer retention.
Enterprise Miner is the first to offer such a wide range of algorithms in a single package - decision trees, clustering, neural networks, data-mining regression, associations, and others.
The most important data-mining business applications, such as classification and predictive modeling, can be accomplished using just CART," says Dan Steinberg, president of Salford Systems.
NEW YORK--(BUSINESS WIRE)--April 30, 1998--SAS Institute today announced the production version of its highly anticipated data-mining product, Enterprise Miner(TM) software.
that will allow Data General to add Datasage production data-mining management software to its suite of data warehousing solutions, helping customers turn raw data into useful business information.
BUSINESS WIRE)--July 10, 1997 --Hewlett-Packard Company and SAS Institute -- selected as data-mining leaders in a recent META Group survey -- today announced a collaborative effort to offer enterprisewide data-mining solutions.