Two-echelon vehicle routing problem (2E-VRP) is an NP-hard combinatorial optimization problem and a basic mathematical model of modern city logistics. While it is difficult to obtain the optimal ...

Humans struggle to perceive and interpret high-dimensional data. Therefore, high-dimensional data are often projected into two dimensions for visualization. Many applications benefit from complex ...

As US cities heighten security, Iran’s history of reprisal points to murder-for-hire plots No credible threats to the homeland have surfaced publicly in the hours since the stealth American ...