Financial trade auditing and compliance 

Examine a stream of stock transactions and find any transactions that are suspicious. Check whether any traders involved in a suspicious transaction also appear in a database table that contains the names of persons of interest. 

Network monitoring and traffic engineering 

Receive an undifferentiated stream of alerts from various hardware devices, group them by the device, and sort them by the unique ID. For each device, detect any missing alerts and request them to be re-sent. 

IT security event correlation 

Examine the password changes that have been made to a web-based application. If the number of password changes in a given hour is more than twice the average, then generate a security alert. 

Asset management and tracking using RFID

Examine the RFID signals that are regularly emitted by all of the products in a store. Determine whether a product is moving through the exit area without having been purchased. Determine whether a product's RFID emitter is no longer working.