作者: René A. Sitters , Leen Stougie , Willem E. de Paepe
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摘要: We consider the general on-line two server problem in which at each step both servers receive a request, is point metric space. One of has to be moved its request. The special case where requests are points on real line known as CNN-problem. It been well-known open question if an algorithm with constant competitive ratio exists for this problem. answer affirmative sense by providing first two-server any