Which is used to improve the performance of heuristic search?Question 9Answera. Quality of heuristic functionb.Quality of nodesc.Simple form of nodesd.None of the mentioned

What is a heuristic function, and why is it important in A* search?

Heuristic optimization transforms the query-tree by using a set of rules that typically (but not in all cases) improve execution performance .It uses which rules to do soSelect one:a.Perform selection early (reduces the number of tuples)b.Perform most restrictive selection and join operations (i.e., with smallest result size) before other similar operations.c. All of the aboved.Perform projection early (reduces the number of attributes)

what is Heuristic Evaluation ?

What is the difference between algorithms and heuristics?Group of answer choicesAlgorithms may require too much time or storage to be practical; heuristics often get a 'good enough' answer, and do it quicklyHeuristics can't be coded onto a computer, algorithms can.None; they're different terms for the same thingAlgorithms are always inefficient, heuristics are always effiicient

Suppose you were applying the Graph Search version of A* Search to a search problem. Using an admissible heuristic would guarantee that:Group of answer choicesAll nodes expanded by the search algorithm will have the same value of f(n).The first solution found is an optimal solution.The heuristic is also consistent.None of the above.