Search Results for author: Kareem Amin

Found 12 papers, 1 papers with code

Learning-Augmented Private Algorithms for Multiple Quantile Release

1 code implementation20 Oct 2022 Mikhail Khodak, Kareem Amin, Travis Dick, Sergei Vassilvitskii

When applying differential privacy to sensitive data, we can often improve performance using external information such as other sensitive data, public data, or human priors.

Privacy Preserving

Easy Differentially Private Linear Regression

no code implementations15 Aug 2022 Kareem Amin, Matthew Joseph, Mónica Ribero, Sergei Vassilvitskii

In this paper, we study an algorithm which uses the exponential mechanism to select a model with high Tukey depth from a collection of non-private regression models.

regression

Learning with Labeling Induced Abstentions

no code implementations NeurIPS 2021 Kareem Amin, Giulia Desalvo, Afshin Rostamizadeh

Consider a setting where we wish to automate an expensive task with a machine learning algorithm using a limited labeling resource.

Active Learning BIG-bench Machine Learning +1

Learning with User-Level Privacy

no code implementations NeurIPS 2021 Daniel Levy, Ziteng Sun, Kareem Amin, Satyen Kale, Alex Kulesza, Mehryar Mohri, Ananda Theertha Suresh

We show that for high-dimensional mean estimation, empirical risk minimization with smooth losses, stochastic convex optimization, and learning hypothesis classes with finite metric entropy, the privacy cost decreases as $O(1/\sqrt{m})$ as users provide more samples.

Differentially Private Covariance Estimation

no code implementations NeurIPS 2019 Kareem Amin, Travis Dick, Alex Kulesza, Andres Munoz, Sergei Vassilvitskii

The covariance matrix of a dataset is a fundamental statistic that can be used for calculating optimum regression weights as well as in many other learning and data analysis settings.

Pan-Private Uniformity Testing

no code implementations4 Nov 2019 Kareem Amin, Matthew Joseph, Jieming Mao

We show that the sample complexity of pure pan-private uniformity testing is $\Theta(k^{2/3})$.

Repeated Inverse Reinforcement Learning

no code implementations NeurIPS 2017 Kareem Amin, Nan Jiang, Satinder Singh

We introduce a novel repeated Inverse Reinforcement Learning problem: the agent has to act on behalf of a human in a sequence of tasks and wishes to minimize the number of tasks that it surprises the human by acting suboptimally with respect to how the human would have acted.

Imitation Learning reinforcement-learning +1

Threshold Bandits, With and Without Censored Feedback

no code implementations NeurIPS 2016 Jacob D. Abernethy, Kareem Amin, Ruihao Zhu

The learner selects one of $K$ actions (arms), this action generates a random sample from a fixed distribution, and the action then receives a unit payoff in the event that this sample exceeds the threshold value.

Towards Resolving Unidentifiability in Inverse Reinforcement Learning

no code implementations25 Jan 2016 Kareem Amin, Satinder Singh

We first demonstrate that if the learner can experiment with any transition dynamics on some fixed set of states and actions, then there exists an algorithm that reconstructs the agent's reward function to the fullest extent theoretically possible, and that requires only a small (logarithmic) number of experiments.

reinforcement-learning Reinforcement Learning (RL)

Repeated Contextual Auctions with Strategic Buyers

no code implementations NeurIPS 2014 Kareem Amin, Afshin Rostamizadeh, Umar Syed

Motivated by real-time advertising exchanges, we analyze the problem of pricing inventory in a repeated posted-price auction.

Learning Prices for Repeated Auctions with Strategic Buyers

no code implementations NeurIPS 2013 Kareem Amin, Afshin Rostamizadeh, Umar Syed

Inspired by real-time ad exchanges for online display advertising, we consider the problem of inferring a buyer's value distribution for a good when the buyer is repeatedly interacting with a seller through a posted-price mechanism.

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