Data mining is the process of analyzing data from different perspectives and summarizing it into useful information. A crime analyst, using data mining, can extract useful information from very large and complex data sets. In Chapter 10, we further explore practical intelligence applications.
Questions for Discussion
- 1 What might be some new and unique applications of data mining in police work?
- 2 What might be some of the challenges of data mining for the intelligence analyst?
Association rules: In data mining, association rules are useful for analyzing and predicting the behavior of individuals.
Clustering: Process of grouping data into a set of meaningful subclasses, called clusters.
Data mining: Process of analyzing data from different perspectives and summarizing them into useful information. Data mining systematically searches information to identify relationships and patterns.
Entity extraction: Data mining approach that identifies particular patterns from data, such as text, images, or audio materials. In criminal justice, it has been used to identify a persons addresses, vehicles, and personal characteristics.
Information technology: Use of any computers, storage, networking, and other physical devices, infrastructure, and processes to create, process, store, secure, and exchange all forms of electronic data.
Machine learning: Type of Al that provides computers with the ability to learn without being explicitly programmed. Machine learning generally focuses on the development of computer programs that can teach themselves to grow and change when exposed to new data.
Sequential mining: Data mining approach that is concerned with finding statistically relevant patterns within databases.
Transaction processing system: Supports the processing of a company’s or organizations business transactions.
Study Guide Questions
For questions 1—3, indicate whether the statement is true or false.
- 1 Data mining is essential in criminal justice because trying to determine relationships and patterns within databases is often too complex to figure out in other ways.
- 2 One strategy for extracting meaning from large amounts of investigative information is the use of video game applications.
- 3 To find out information about almost any suspect, an intelligence analyst need only “Google” that person s name.
4 To comb through many large databases to find useful information in an investigation, the crime analyst may find similarities through
a Entity extraction
d Sequential pattern mining
5 In criminal justice, frequent sequence mining could help determine the
interval between certain types of crimes and the of criminal
d Economic variables
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