about dataminig

1. DATA MINING:
• It is the process of extraction of useful data from bulk of data
• Data mining is a way to generate new information by combining
multiple number of facts found.
• What and how data mining is performed.

2. Examples
• Google Personalized Search: Google gives your search results according to
your previous search history.
• Microtargeting
• Police can use data mining to get location of different criminal activities
• Banks use data mining to evaluate the riskiness of loan.

3. Opt-in versus opt-out
• Two different polices that the sharing of information by different
companies
• Opt in : it requires the consumer to clearly give permission for the
organization to share the information with another organization.
• Opt out : The opt-out policy requires the consumer to explicitly forbid
an organization from sharing information with other organizations.