Search Results for author: Vinod Raman

Found 10 papers, 1 papers with code

The Complexity of Sequential Prediction in Dynamical Systems

no code implementations9 Feb 2024 Vinod Raman, Unique Subedi, Ambuj Tewari

We study the problem of learning to predict the next state of a dynamical system when the underlying evolution function is unknown.

Learning Theory

Apple Tasting: Combinatorial Dimensions and Minimax Rates

no code implementations29 Oct 2023 Vinod Raman, Unique Subedi, Ananth Raman, Ambuj Tewari

In particular, we show that in the realizable setting, the expected number of mistakes of any learner, under apple tasting feedback, can be $\Theta(1), \Theta(\sqrt{T})$, or $\Theta(T)$.

Binary Classification

Online Infinite-Dimensional Regression: Learning Linear Operators

no code implementations8 Sep 2023 Vinod Raman, Unique Subedi, Ambuj Tewari

Finally, we prove that the impossibility result and the separation between uniform convergence and learnability also hold in the batch setting.

regression

A Combinatorial Characterization of Supervised Online Learnability

no code implementations7 Jul 2023 Vinod Raman, Unique Subedi, Ambuj Tewari

We study the online learnability of hypothesis classes with respect to arbitrary, but bounded loss functions.

Learning Theory regression

Online Learning with Set-Valued Feedback

no code implementations9 Jun 2023 Vinod Raman, Unique Subedi, Ambuj Tewari

We study a variant of online multiclass classification where the learner predicts a single label but receives a \textit{set of labels} as feedback.

Multiclass Online Learning and Uniform Convergence

no code implementations30 Mar 2023 Steve Hanneke, Shay Moran, Vinod Raman, Unique Subedi, Ambuj Tewari

We argue that the best expert has regret at most Littlestone dimension relative to the best concept in the class.

Binary Classification

A Characterization of Multioutput Learnability

no code implementations6 Jan 2023 Vinod Raman, Unique Subedi, Ambuj Tewari

This provides a complete characterization of the learnability of multilabel classification and multioutput regression in both batch and online settings.

regression

Online Agnostic Multiclass Boosting

1 code implementation30 May 2022 Vinod Raman, Ambuj Tewari

In this way, boosting algorithms convert weak learners into strong ones.

Binary Classification

Online Boosting for Multilabel Ranking with Top-k Feedback

no code implementations24 Oct 2019 Vinod Raman, Daniel T. Zhang, Young Hun Jung, Ambuj Tewari

We present online boosting algorithms for multilabel ranking with top-k feedback, where the learner only receives information about the top k items from the ranking it provides.

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