Search Results for author: Gregory Canal

Found 7 papers, 5 papers with code

Feed Two Birds with One Scone: Exploiting Wild Data for Both Out-of-Distribution Generalization and Detection

no code implementations15 Jun 2023 Haoyue Bai, Gregory Canal, Xuefeng Du, Jeongyeol Kwon, Robert Nowak, Yixuan Li

Modern machine learning models deployed in the wild can encounter both covariate and semantic shifts, giving rise to the problems of out-of-distribution (OOD) generalization and OOD detection respectively.

Out-of-Distribution Generalization

A Low-complexity Brain-computer Interface for High-complexity Robot Swarm Control

no code implementations27 May 2022 Gregory Canal, Yancy Diaz-Mercado, Magnus Egerstedt, Christopher Rozell

We construct a scalable dictionary of robotic behaviors that can be searched simply and efficiently by a BCI user, as we demonstrate through a large-scale user study testing the feasibility of our interaction algorithm, a user test of the full BCI system on (virtual and real) robot swarms, and simulations that verify our results against theoretical models.

Brain Computer Interface

Feedback Coding for Active Learning

1 code implementation28 Feb 2021 Gregory Canal, Matthieu Bloch, Christopher Rozell

The iterative selection of examples for labeling in active machine learning is conceptually similar to feedback channel coding in information theory: in both tasks, the objective is to seek a minimal sequence of actions to encode information in the presence of noise.

Active Learning

Generative causal explanations of black-box classifiers

2 code implementations NeurIPS 2020 Matthew O'Shaughnessy, Gregory Canal, Marissa Connor, Mark Davenport, Christopher Rozell

Our objective function encourages both the generative model to faithfully represent the data distribution and the latent factors to have a large causal influence on the classifier output.

Active Ordinal Querying for Tuplewise Similarity Learning

1 code implementation9 Oct 2019 Gregory Canal, Stefano Fenu, Christopher Rozell

Many machine learning tasks such as clustering, classification, and dataset search benefit from embedding data points in a space where distances reflect notions of relative similarity as perceived by humans.

Clustering

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