Search Results for author: Ashok Chandrashekar

Found 5 papers, 1 papers with code

On Negative Sampling for Audio-Visual Contrastive Learning from Movies

no code implementations29 Apr 2022 Mahdi M. Kalayeh, Shervin Ardeshir, Lingyi Liu, Nagendra Kamath, Ashok Chandrashekar

The abundance and ease of utilizing sound, along with the fact that auditory clues reveal a plethora of information about what happens in a scene, make the audio-visual space an intuitive choice for representation learning.

Action Recognition Audio Classification +3

Watching Too Much Television is Good: Self-Supervised Audio-Visual Representation Learning from Movies and TV Shows

no code implementations NeurIPS 2021 Mahdi M. Kalayeh, Nagendra Kamath, Lingyi Liu, Ashok Chandrashekar

The abundance and ease of utilizing sound, along with the fact that auditory clues reveal so much about what happens in the scene, make the audio-visual space a perfectly intuitive choice for self-supervised representation learning.

Contrastive Learning Representation Learning +1

Control Variates for Slate Off-Policy Evaluation

1 code implementation NeurIPS 2021 Nikos Vlassis, Ashok Chandrashekar, Fernando Amat Gil, Nathan Kallus

We study the problem of off-policy evaluation from batched contextual bandit data with multidimensional actions, often termed slates.

Off-policy evaluation Recommendation Systems

Off-Policy Evaluation of Slate Policies under Bayes Risk

no code implementations5 Jan 2021 Nikos Vlassis, Fernando Amat Gil, Ashok Chandrashekar

We study the problem of off-policy evaluation for slate bandits, for the typical case in which the logging policy factorizes over the slots of the slate.

Off-policy evaluation

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