Search Results for author: Stefani Karp

Found 5 papers, 1 papers with code

Applying statistical learning theory to deep learning

no code implementations26 Nov 2023 Cédric Gerbelot, Avetik Karagulyan, Stefani Karp, Kavya Ravichandran, Menachem Stern, Nathan Srebro

Although statistical learning theory provides a robust framework to understand supervised learning, many theoretical aspects of deep learning remain unclear, in particular how different architectures may lead to inductive bias when trained using gradient based methods.

Inductive Bias Learning Theory +1

Agnostic Learnability of Halfspaces via Logistic Loss

no code implementations31 Jan 2022 Ziwei Ji, Kwangjun Ahn, Pranjal Awasthi, Satyen Kale, Stefani Karp

In this paper, we close this gap by constructing a well-behaved distribution such that the global minimizer of the logistic risk over this distribution only achieves $\Omega(\sqrt{\textrm{OPT}})$ misclassification risk, matching the upper bound in (Frei et al., 2021).

regression

Local Signal Adaptivity: Provable Feature Learning in Neural Networks Beyond Kernels

1 code implementation NeurIPS 2021 Stefani Karp, Ezra Winston, Yuanzhi Li, Aarti Singh

We therefore propose the "local signal adaptivity" (LSA) phenomenon as one explanation for the superiority of neural networks over kernel methods.

Image Classification

PAC-Bayes Learning Bounds for Sample-Dependent Priors

no code implementations NeurIPS 2020 Pranjal Awasthi, Satyen Kale, Stefani Karp, Mehryar Mohri

We present a series of new PAC-Bayes learning guarantees for randomized algorithms with sample-dependent priors.

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