# Questions tagged [competitive-ratio]

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### Prove: Self-organizing list that uses Move-to-Front is 2-Competitive

Preparing for my finals in my "advances algorithms" course. Usually there is a question to prove one of the theorems that was given over the course. I'm currently trying to write a full ...
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### difference between using cost vs expectation in competitive ratio

The standard definition defines the ratio as the "cost" for the worst-case input for online algorithm divided by the cost of an offline algorithm that knew the entire input sequence in ...
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### Deterministic Algorithm for searching for object $d$ units down one road in a $k$ road intersection

Suppose we are at the centre of a $k$ road intersection (i.e, there are $k$ different roads radiating out from where we are standing, infinitely). Suppose along one of these roads is a treasure. This ...
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### How to define the potential function method for an online maximization problem?

From Online Computation and Competitive Analysis By Allan Borodin, Ran El-Yaniv, to prove that an online algorithm $\text{ALG}$ is $c$-competitive for a minimization problem (i.e., there exists a ...
### Lower bound on competitive ratio of $m$-machine scheduling
Given a sequence of positive reals $a_1, a_2, \dots, a_n$ and an integer $m$, for each $j$ assign $a_j$ to a machine $i$, $1< i < m$, so as to minimize the maximum, over $i$, of the sum of all ...