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Randomized Competitive Analysis for Two Server Problems
oleh: Jun Kawahara, Kazuo Iwama, Wolfgang Bein
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2008-09-01 |
Deskripsi
We prove that there exists a randomized online algorithm for the 2-server 3-point problem whose expected competitive ratio is at most 1.5897. This is the first nontrivial upper bound for randomized k-server algorithms in a general metric space whose competitive ratio is well below the corresponding deterministic lower bound (= 2 in the 2-server case).