- By financial institutions, to determine the level of risk that a loan applicant represents.
 - By debt collectors, to predict the likelihood of a debtor to repay their debt.
 - By marketers, to predict the likelihood of a subscriber list member to respond to a campaign.
 - By retailers, to determine the probability of a customer to purchase a product.
 
- Boolean queries—specify a formula
 - Vector space queries—support free text queries (with no query operators necesssarily connecting them)
 - Wildcard queries—match any pattern
 

