path-finding - Read For Learn

PacMan: what kinds of heuristics are mainly used?

You comment says you are looking for shortest path. This problem is a variation of TSP on a planar graph, and thus is NP-Hard. Possible heuristics function for A* that can solve the problem but is not admissible [thus the path found is not guaranteed to be optimal]: Sum of manhattan distances from all fruits to the agent. You can also use an … Read more

Difference and advantages between dijkstra & A star

It says A* is faster than using dijkstra and uses best-first-search to speed things up. A* is basically an informed variation of Dijkstra.A* is considered a “best first search” because it greedily chooses which vertex to explore next, according to the value of f(v) [f(v) = h(v) + g(v)] – where h is the heuristic and g is the cost so … Read more