Search Results for author: Nick Gravin

Found 3 papers, 0 papers with code

Testing Symmetric Markov Chains from a Single Trajectory

no code implementations22 Apr 2017 Constantinos Daskalakis, Nishanth Dikkala, Nick Gravin

We initiate the study of Markov chain testing, assuming access to a single trajectory of a Markov Chain.

Tight Lower Bounds for Multiplicative Weights Algorithmic Families

no code implementations11 Jul 2016 Nick Gravin, Yuval Peres, Balasubramanian Sivan

We study the fundamental problem of prediction with expert advice and develop regret lower bounds for a large family of algorithms for this problem.

Towards Optimal Algorithms for Prediction with Expert Advice

no code implementations10 Sep 2014 Nick Gravin, Yuval Peres, Balasubramanian Sivan

Further, we show that the optimal algorithm for $2$ and $3$ experts is a probability matching algorithm (analogous to Thompson sampling) against a particular randomized adversary.

Thompson Sampling

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