Concept explainers
Heuristic system:
The heuristic system considers all the immediate possible conditions that may lead to a solution for the problem. The system proceeds in the same manner until all the possible conditions are achieved. The heuristic system may require a large amount of work but ultimately it approaches towards a solution. The solution is one of the conditions achieved at the last. The conditions achieved at last may be in large numbers. It guarantees to have a solution among many conditions achieved in the end.
Best fit
To eliminate irrelevant moves, the tiles that are out of place should always be adjacent to the hole. The tiles that are already in place should not be moved. The best fit algorithm eliminates the moves having a higher cost, but only for proceeding moves. This algorithm does not consider the overall cost associated with a path.
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EBK COMPUTER SCIENCE: AN OVERVIEW
- *, This is a search problem where A is the start state. The costs of transitions are placed on the edges, but the heuristic estimated value, h, is in the state's node. Assume ties are always broken by choosing the state which comes first alphabetically. State h(state) A 4 4 3 F 1. E [Note!!! When you write the order of the node use gre Capital Letter and a comma to separate between them. Do not use space. For example: A,B,C,D] 1. If the root is state A, Which state represents the goal state? 2. Determine the lower and upper bound for the heuristic value of B, h(B), to make the h admissible?arrow_forwardQ1/ Consider the search graph below where S is the start node and G1, G2, G3 are goal, using A* search algorithm to indicate which of the goal state reach first G10 10 A7 E1 7 3 6 3 G20 $9 D6 6 B 10 3 2 C 10 F7 11 T G3 0arrow_forwardFor straight-line distance heuristic, draw the search tree after expansion of each node until the termination of the algorithm for: a) Greedy best-first search (label all node with their h values). What is the solution (list of visited cities) found by the algorithm? b) A* search (label all nodes with their f values). What is the solution (list of visited cities) found by the algorithm?arrow_forward
- Implement RBFS algorithm and draw the search tree for the following search space. (Assume start state S and goal state G) 150 42 B H 6 2 66 105 A G 10 7 10 E 30 36 100 1 63 1. 2.arrow_forwardQuestion Given a singly linked list, you need to do two tasks. Swap the first node with the last node. Then count the number of nodes and if the number of nodes is an odd number then delete the first node, otherwise delete the last node of the linked list. For example, if the given linked list is 1->2->3->4->5 then the linked list should be modified to 2->3->4->1. Because 1 and 5 will be swapped and 5 will be deleted as the number of nodes in this linked list is 5 which is an odd number, that means the first node which contains 5 has been deleted. If the input linked list is NULL, then it should remain NULL. If the input linked list has 1 node, then this node should be deleted and a new head should be returned. Sample 1: Input: NULL output: NULL. Sample 2: Input: 1 output: NULL Sample 3: Input: 1->2 output: 2 Sample 4: Input: 1->2->3 output: 2->1 Sample 5: Input: 1->2->3->4 _output: 4->2->3 Sample 6: Input: 1->2->3->4->5->6 output: 6->2->3->4->5. Input: The function takes one argument…arrow_forwardSearching Techniques Assume the given representation of a search problem, where S is the start node and G is the goal node. The heuristic values for every node are provided in the adjacent table. 6 B 3 h(n) A D A 6. C B 4 S G 3 12 While you are in the middle of a search and the current frontier is F =(B, C, G), and you are about to choose the next node from F to expand. Which node will be expanded next, assuming that you are using Greedy Best-First-Search with a value Algorithm A with a value Breadth-First-Search with a value Activate Windo 2) 2) 3.arrow_forward
- Write this code exactly but in a different and easier wayarrow_forward49. In splay-tree access paths, zig-zig method is where three nodes of interest form a straight line True False Question 50 50. The running time of an algorithm as input size approaches infinity is called the asymptotic running tim True Falsearrow_forwardYour second function is called “isTree". Its input is a graph G, which is a dictionary whose keys are the vertices, and whose values are lists of vertices that are adjacent to the given vertex. Its output is True if G is a tree and False if G is not a tree. Hint: You may want to make use of your "connected" function from the last coding assignment.arrow_forward
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