Answer the following questions in Artificial Intelligence. Please provide short and understandable answers
1) In informed search algorithms, what determines if an heuristic is admissible?
2) What is the function that is minimized in A* search? Give the equation for the quantity to be minimized and briefly describe what each term is.
3) Name 2 methods of generating heuristics.
4) Suppose we have several admissible heuristics, and none of them clearly dominate the others. How can we achieve the best results in a guided search?