Titlebook: Computational Science and Its Applications - ICCSA 2011; International Confer Beniamino Murgante,Osvaldo Gervasi,Bernady O. Apdu Conference

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An Improved Approximation Algorithm for the Terminal Steiner Tree Problemaper, we present an approximation algorithm with performance ratio . for the terminal Steiner tree problem, where . is the best-known performance ratio for the Steiner tree problem with any .?≥?2. When we let .?=?3.87?≈?4, this result improves the previous performance ratio of 2.515 to 2.458.

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