NETWORK THEORY;
DISTANCE ALGORITHMS;
HEURISTICS;
TREE ALGORITHMS;
D O I:
10.1016/0167-6377(92)90053-6
中图分类号:
C93 [管理学];
O22 [运筹学];
学科分类号:
070105 ;
12 ;
1201 ;
1202 ;
120202 ;
摘要:
The rectilinear Steiner ratio is the worst-case ratio of the length of a rectilinear minimum spanning tree to the length of a rectilinear Steiner minimal tree. Hwang proved that the ratio for point sets in the plane is 3/2. We provide a simple proof of the 3/2-bound.
机构:
N China Univ Water Conservancy & Elect Power, Coll Math & Informat Sci, Zhengzhou 450011, Peoples R ChinaN China Univ Water Conservancy & Elect Power, Coll Math & Informat Sci, Zhengzhou 450011, Peoples R China
Shang, Song Pu
Jing, Tong
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机构:N China Univ Water Conservancy & Elect Power, Coll Math & Informat Sci, Zhengzhou 450011, Peoples R China