Search Results for author: Princewill Okoroafor

Found 4 papers, 0 papers with code

Omnipredictors for Regression and the Approximate Rank of Convex Functions

no code implementations26 Jan 2024 Parikshit Gopalan, Princewill Okoroafor, Prasad Raghavendra, Abhishek Shetty, Mihir Singhal

An \textit{omnipredictor} for a class $\mathcal L$ of loss functions and a class $\mathcal C$ of hypotheses is a predictor whose predictions incur less expected loss than the best hypothesis in $\mathcal C$ for every loss in $\mathcal L$.

regression

Faster Recalibration of an Online Predictor via Approachability

no code implementations25 Oct 2023 Princewill Okoroafor, Robert Kleinberg, Wen Sun

Predictive models in ML need to be trustworthy and reliable, which often at the very least means outputting calibrated probabilities.

On the Vulnerability of Fairness Constrained Learning to Malicious Noise

no code implementations21 Jul 2023 Avrim Blum, Princewill Okoroafor, Aadirupa Saha, Kevin Stangl

For example, for Demographic Parity we show we can incur only a $\Theta(\alpha)$ loss in accuracy, where $\alpha$ is the malicious noise rate, matching the best possible even without fairness constraints.

Fairness

Non-Stochastic CDF Estimation Using Threshold Queries

no code implementations13 Jan 2023 Princewill Okoroafor, Vaishnavi Gupta, Robert Kleinberg, Eleanor Goh

Along the way to designing our algorithm, we consider a more general model in which the algorithm is allowed to make a limited number of simultaneous threshold queries on each sample.

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