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Nikhil Karamchandani

3 accepted papers

2025

On the Asymptotic Optimality of Confidence Interval Based Algorithms for Fixed Confidence MABs

AAAI 2025technical

In this work, we address the challenge of identifying the optimal arm in a stochastic multi-armed bandit scenario with the minimum number of arm pulls, given a predefined error probability in a fixed confidence setting. Our focus is on examining the asymptotic behavior of sample complexity and the d…

Cited by 0SourcePDFScholar
2025

Representative Arm Identification: A fixed confidence approach to identify cluster representatives

ICASSP 2025accepted

We study the representative arm identification (RAI) problem in the multi-armed bandits (MAB) framework, wherein we have a collection of arms, each associated with an unknown reward distribution. An underlying instance is defined by a partitioning of the arms into clusters of predefined sizes, such…

Cited by 0SourceScholar