We further show the mismatched sampling paradox: A learner who knows the rewards distributions and samples from the correct posterior distribution can perform exponentially worse than a learner who does not know the rewards and simply samples from a well-chosen Gaussian posterior.

A unifying theme in the design of intelligent agents is to efficiently optimize a policy based on what prior knowledge of the problem is available and what actions can be taken to learn more about it.

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The conditions on the representation that imply global convergence are different between these two algorithms.

Inthiswork,we explore the "offline" case in which one is able to bypass nature and choose the next task to evaluate (e.g. via a simulator). Because some tasks may be easier to optimize and others may be more critical, it is crucial to leverage algorithms that not only consider which configurations to try next, but also which tasks to makeevaluationsfor.

The algorithm [62] consider Algorithm 2 for the stochastic generalized linear bandit problem. Assume thatθ is the true parameter of the reward model. Then we consider the lower bounds. For fj(A) = 12(ej1eTj2 +ej2eTj1),A with j1 j2, fj(Ai) is only 1 wheni = j and 0 otherwise. With Claim D.12 and Claim D.11 we get that g C q To get 1), we writeVl = [v1, vl] Rd l and V l = [vl+1, vk].