approximation algorithm: Operations research, Optimization problem, algorithm, Heuristic (computer science), Constant factor Vertex cover problem

Greedy algorithm: Algorithm, Problem solving, Metaheuristic, Traveling salesman problem, Mathematical Dynamic programming

Dijkstra's algorithm: Computer scientist, Edsger Dijkstra, Graph search algorithm, Shortest path problem,...

Artificial Ants: Multi agent, Optimization (computer science), Ant colony optimization, colony, AntOptima,...

Pseudorandom Generator: Theoretical Computer Science, Deterministic Algorithm, Pseudorandomness