no code implementations • 26 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 $\mathcal L$.
no code implementations • 25 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.
no code implementations • 21 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.
no code implementations • 13 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.