Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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[画像:1 Consider the following constraint network of 8 variables. Assume each variable currently has a domain of {1,2,3,4}). Find an equivalent arc-consistent and path-consistent network, and show this equivalent network as a list of unary and binary constraints, e.g. D;={1,2,3,4}, C12={(1,2),(1,3)}, etc. Note the examples of D1 and C12 are NOT the right answers. They are just examples. v1 V2 V4 V8 V3 V5 V6 Answer: D;=Dg=D7=Dg={1,2} D2=D3={2,3} D4=Ds={3,4} C81={(1,1),(2,2)} C72={(1,2),(1,3),(2,3)} C87={(1,1),(2,2)} C67={(1,1),(1,2),(2,2)} C71={(1,1),(2,2)} C83={(1,2),(1,3),(2,3)} C82={(1,2),(1,3),(2,3)} C6a={(1,3),(1,4),(2,4)} C34={(2,3),(2,4),(3,4)} C74={(1,3),(1,4),(2,4)} C24={(2,3),(2,4),(3,4)} C8a={(1,3),(1,4),(2,4)} C13={(1,2),(1,3),(2,3)} C6s={(1,3),(1,4),(2,4)} C14={(1,3),(1,4),(2,4)} C75={(1,3),(1,4),(2,4)} C15={(1,3),(1,4),(2,4)} Cs={(1,3),(1,4),(2,4)} C73={(1,2),(1,3),(2,3)} C68={(1,1),(1,2),(2,2)} C63={(1,2,(1,3),(2,3)} C12={(1,2),(2,3),(1,3)} C61={(1,1),(1,2),(2,2)} C23={(2,2),(3,3)} C25={(2,3),(2,4),(3,4)} Cas={(3,3),(4,4)} C62={(1,2),(1,3),(2,3)} C35={(2,3),(2,4),(3,4)} || VI VI VI VI ]
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Transcribed Image Text:1 Consider the following constraint network of 8 variables. Assume each variable currently has a domain of {1,2,3,4}). Find an equivalent arc-consistent and path-consistent network, and show this equivalent network as a list of unary and binary constraints, e.g. D;={1,2,3,4}, C12={(1,2),(1,3)}, etc. Note the examples of D1 and C12 are NOT the right answers. They are just examples. v1 V2 V4 V8 V3 V5 V6 Answer: D;=Dg=D7=Dg={1,2} D2=D3={2,3} D4=Ds={3,4} C81={(1,1),(2,2)} C72={(1,2),(1,3),(2,3)} C87={(1,1),(2,2)} C67={(1,1),(1,2),(2,2)} C71={(1,1),(2,2)} C83={(1,2),(1,3),(2,3)} C82={(1,2),(1,3),(2,3)} C6a={(1,3),(1,4),(2,4)} C34={(2,3),(2,4),(3,4)} C74={(1,3),(1,4),(2,4)} C24={(2,3),(2,4),(3,4)} C8a={(1,3),(1,4),(2,4)} C13={(1,2),(1,3),(2,3)} C6s={(1,3),(1,4),(2,4)} C14={(1,3),(1,4),(2,4)} C75={(1,3),(1,4),(2,4)} C15={(1,3),(1,4),(2,4)} Cs={(1,3),(1,4),(2,4)} C73={(1,2),(1,3),(2,3)} C68={(1,1),(1,2),(2,2)} C63={(1,2,(1,3),(2,3)} C12={(1,2),(2,3),(1,3)} C61={(1,1),(1,2),(2,2)} C23={(2,2),(3,3)} C25={(2,3),(2,4),(3,4)} Cas={(3,3),(4,4)} C62={(1,2),(1,3),(2,3)} C35={(2,3),(2,4),(3,4)} || VI VI VI VI
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