What is data mining?
Data mining is an interdisciplinary subfield of computer science that analyzes data from various perspectives and summarizes it into useful information. It is a process of extracting the hidden predictive information from the extensive database. Data mining is required to determine anomalies, patterns, and correlations in a large data set, and with the help of these data, we can predict the outcomes. Data mining can be performed on various types of databases including text databases, object-oriented databases, object-relational databases, data warehouses, spatial databases, streaming and multimedia databases, etc. There are mainly two types of tasks that are performed with the help of data mining, first is describing the general properties of existing data and the second one is predicting data outcomes.
5 steps of data mining
- Identifying the source of information
At the beginning of the data mining method, you need to investigate different data models and different datasets then merge them to establish the required dataset. Identifying information sources is important to determine which data set you should be analyzing to retrieve information.
- Choosing data
In a huge data set, there are different types of data that exist but all of those are not required for analysis, so we need to pick specific types of data. There are massive uses of Bayesian data analysis to choose relevant data from an existing dataset. When someone gets a failure to choose the proper data then they also fail to execute the required information form the existing data set.
- Extracting the relevant information.
After deciding which type of data is required from the existing dataset, we need to extract data for further analysis. We needed to transform data as per requirement and this transformation included several steps such as smoothing, aggregation, generalization, normalization, and attributes construction.
- Identify key values
Identifying key values is the next step of data mining. This step is important because if anyone chooses some uncertain value as key-value then the required outcomes changes to the other outcomes.
- Interpreting and recording outcomes
This is the final stage and it includes resolving the information in more qualifiable values by using basic numerical counts, group comparison, direct value comparison to determine specific elements. It involves modeling where there are some mathematical models that are used to determine patterns of data, evaluation where identified patterns are evaluated against the objectives, and lastly deployment that involves shipping the data mining outcomes to regular operations.
Data mining techniques
There are seven data mining techniques that include;
- Association Rules
- Other detection
- Sequential patterns
Statistical, machine learning and neural networks are the three analytical software or tools that are used to seek relationships be it classes, clusters, sequential patterns, or associations.
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