Search Results for author: Sepehr Assadi

Found 4 papers, 1 papers with code

The Best Arm Evades: Near-optimal Multi-pass Streaming Lower Bounds for Pure Exploration in Multi-armed Bandits

no code implementations6 Sep 2023 Sepehr Assadi, Chen Wang

Here, $n$ is the number of arms and $\Delta$ is the reward gap between the best and the second-best arms.

Multi-Armed Bandits

Sublinear Time and Space Algorithms for Correlation Clustering via Sparse-Dense Decompositions

no code implementations29 Sep 2021 Sepehr Assadi, Chen Wang

We present a new approach for solving (minimum disagreement) correlation clustering that results in sublinear algorithms with highly efficient time and space complexity for this problem.

Clustering

Exploration with Limited Memory: Streaming Algorithms for Coin Tossing, Noisy Comparisons, and Multi-Armed Bandits

no code implementations9 Apr 2020 Sepehr Assadi, Chen Wang

In particular, algorithms with optimal sample complexity (number of coin tosses) have been known for this problem for quite some time.

Multi-Armed Bandits

Sublinear Algorithms for $(Δ+ 1)$ Vertex Coloring

2 code implementations24 Jul 2018 Sepehr Assadi, Yu Chen, Sanjeev Khanna

Any graph with maximum degree $\Delta$ admits a proper vertex coloring with $\Delta + 1$ colors that can be found via a simple sequential greedy algorithm in linear time and space.

Data Structures and Algorithms

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