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Philips George John

5 accepted papers

2025

Distribution Learning Meets Graph Structure Sampling

NeurIPS 2025poster

This work establishes a novel link between the problem of PAC-learning high-dimensional graphical models and the task of (efficient) counting and sampling of graph structures, using an online learning framework. The problem of efficiently counting and sampling graphical structures, such as spanning…

Cited by 0SourceScholar
2025

Learning multivariate Gaussians with imperfect advice

ICML 2025poster

We revisit the problem of distribution learning within the framework of learning-augmented algorithms. In this setting, we explore the scenario where a probability distribution is provided as potentially inaccurate advice on the true, unknown distribution. Our objective is to develop learning algori…

Cited by 2SourcePDFScholar
2025

Product Distribution Learning with Imperfect Advice

NeurIPS 2025spotlight

Given i.i.d.~samples from an unknown distribution $P$, the goal of distribution learning is to recover the parameters of a distribution that is close to $P$. When $P$ belongs to the class of product distributions on the Boolean hypercube $\{0,1\}^d$, it is known that $\Omega(d/\epsilon^2)$ samples a…

Cited by 0SourceScholar
2025

p-Mean Regret for Stochastic Bandits

AAAI 2025technical

In this work, we extend the concept of the p-mean welfare objective from social choice theory to study p-mean regret in stochastic multi-armed bandit problems. The p-mean regret, defined as the difference between the optimal mean among the arms and the p-mean of the expected rewards, offers a flexib…

2020

Verifying Individual Fairness in Machine Learning Models

UAI 2020poster

We consider the problem of whether a given decision model, working with structured data, has individual fairness. Following the work of Dwork, a model is individually biased (or unfair) if there is a pair of valid inputs which are close to each other (according to an appropriate metric) but are trea…

Cited by 81SourcePDFScholar