h tree after expansion of each node until the termination of the algorithm for: a)   Greedy best-first search (label all node with their h val

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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For 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?

Straight-line distance
to Bucharest
Oradea
51,
Neamt
Arad
326
Bucharest
85
PZerind
55
151
Craiova
Dobreta
120
O lasi
202
Arad O
120
Eforie
121
92
Fagaras
Giurgiu
Hirsova
Iasi
138
Sibiu
90
Fagaras
37
118
Ó Vaslui
111
80
186
Rimnicu Vilcea
Lugoj
Mehadia
Timisoara
244
142
201
111
211
Neamt
95
204
340
Pitesti
O Lugoj
50
Oradea
98
Pitesti
Rimnicu Vilcea
58
136
101
85
Hirsova
O Mehadia
Urziceni
153
55
138
86
Sibiu
213
Bucharest
Timisoara
319
120
Dobreta O
90,
Urziceni
40
Craiova
Eforie
Vaslui
159
Giurgiu
Zerind
334
Transcribed Image Text:Straight-line distance to Bucharest Oradea 51, Neamt Arad 326 Bucharest 85 PZerind 55 151 Craiova Dobreta 120 O lasi 202 Arad O 120 Eforie 121 92 Fagaras Giurgiu Hirsova Iasi 138 Sibiu 90 Fagaras 37 118 Ó Vaslui 111 80 186 Rimnicu Vilcea Lugoj Mehadia Timisoara 244 142 201 111 211 Neamt 95 204 340 Pitesti O Lugoj 50 Oradea 98 Pitesti Rimnicu Vilcea 58 136 101 85 Hirsova O Mehadia Urziceni 153 55 138 86 Sibiu 213 Bucharest Timisoara 319 120 Dobreta O 90, Urziceni 40 Craiova Eforie Vaslui 159 Giurgiu Zerind 334
The map below shows the routes through various town in Romani. The route distances are labelled
on the edges between towns. The table on the right gives the straight-line distances to Bucharest
from the other towns.
Consider the rout-finding problem of computing the shortest path from Zerind to Bucharest.
Note: The values mentioned in the question are different than those in textbook
Transcribed Image Text:The map below shows the routes through various town in Romani. The route distances are labelled on the edges between towns. The table on the right gives the straight-line distances to Bucharest from the other towns. Consider the rout-finding problem of computing the shortest path from Zerind to Bucharest. Note: The values mentioned in the question are different than those in textbook
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