A Comparison of Tree Search Schemes for Decision Networks
A Comparison of Tree Search Schemes for Decision Networks
Wallace B S Crowston
The book A Comparison of Tree Search Schemes for Decision Networks was written by author Wallace B S Crowston Here you can read free online of A Comparison of Tree Search Schemes for Decision Networks book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Comparison of Tree Search Schemes for Decision Networks a good or bad book?
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4 (1. 8) 2. 2 (14. 3) 18. 5 2B (2. 7) 5. 3 (5. 8) 9. 4 (40. 8) 73. 2 2C (0. 8) 1. 4 (2. 0) 2. 4 (2. 2) 5. 6 2D (0. 8) 1. 0 (2. 2) 2. 4 (T97) 2E (0. 2) 0. 4 (1. 2) 1. 6 (81. 0) T95 All timies are in seconds. The times enclosed by parentheses are those required to find the optimal solution. The other times are those required to find and prove optima lity. Terminated. T indicates that the solution was prematurely PARTITIONING ALGORITHM k k Define the cheapest alternative completion Q of p to be th...e set of decisions d. . , i = a(m), m = n + 1, . . k '"" N with p such that S, C^ / ». Is minimum ^n m=n+I a(m)3 . , N feasible in conjunction • If *F °^ Pn' = Pn '-' ^n '^ equal to w of p, then Q is clearly the best completion of p, and all n "n n' - 16 - «■ i \ 1^ other completions of p need not be evaluated. The partitioning algorithm incorporates this consideration as follows: Partition the decision nodes of a problem into two sets: B, the Branch and Bound set; and Q, the cheapest alternative set.
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