8 problems
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The deterministic -server conjecture
The deterministic -server conjecture. There exists a deterministic online algorithm for the -server problem with competitive ratio .
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Randomized metrical task systems conjecture
Randomized metrical task systems conjecture. The asymptotically tight competitive-ratio bound holds in all metric spaces.
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Asymptotic optimality of PID controllers without the real-roots assumption
PID controllers are studied under a real-roots assumption on the transfer function, while the experiments include parameter choices that do not satisfy this assumption and neverthe…
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Incompatibility of vanishing stochastic regret and fixed adversarial competitive ratios
Consider an online allocation problem with stochastic and adversarial input models. An algorithm has vanishing regret under stochastic input when its regret tends to zero, and has…
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Information and generalization in online algorithms
The algorithms considered use different amounts of information about the hitting-cost function: OBD PLUS uses projection onto different level sets, Weighted Greedy queries gradient…
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Conjecture on preserving competitiveness under modified cancellation fees
Consider the proposed offline and online algorithms for the energy plan selection problem, including the 3-competitive deterministic algorithm and the 2-competitive randomized algo…
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Competitive-ratio conjecture for gCHASE_s in the dynamic switching problem
Let be the maximum length of a fixed-rate plan, let denote the dynamic energy plan selection problem with cancellation fees, and let…
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Existence of a competitive online selector for convex body chasing
Let denote the family of convex sets in , let be the set of finite strings with alphabet , and let an online selector be a map sat…