You and your friend may be paying different prices for the same thing. Here's how companies make that happen

CreditNinja reports that companies use surveillance pricing to charge different prices for the same products based on personal data, including behavior and location.
IEEE

Weapon Target Assessment With Dynamic Hit Probabilities and Heterogeneous Targets: A Two-Stage Model and Solving Algorithms

Abstract: As a classic optimization problem, the weapon target assignment (WTA) problem is widely studied. However, existing WTA models are mostly established on single-hit destruction and static hit ...