Search Results for author: Mingchen Ma

Found 3 papers, 0 papers with code

Active Learning with Simple Questions

no code implementations13 May 2024 Vasilis Kontonis, Mingchen Ma, Christos Tzamos

We measure the complexity of the region queries via the VC dimension of the family of regions.

Active Learning

Buying Information for Stochastic Optimization

no code implementations6 Jun 2023 Mingchen Ma, Christos Tzamos

In this paper, we study how to buy information for stochastic optimization and formulate this question as an online learning problem.

Stochastic Optimization

Clustering with Queries under Semi-Random Noise

no code implementations9 Jun 2022 Alberto Del Pia, Mingchen Ma, Christos Tzamos

Our main result is a computationally efficient algorithm that can identify large clusters with $O\left(\frac{nk \log n} {(1-2p)^2}\right) + \text{poly}\left(\log n, k, \frac{1}{1-2p} \right)$ queries, matching the guarantees of the best known algorithms in the fully-random model.

Clustering Open-Ended Question Answering

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