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Sachin Ravi

dblp:172/1360 · DBLP profile ↗
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4ranked-venue papers
2as first author
1since 2021 · last 2023
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 4 · 2 first-author · 1 since 2021Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
4 papers
Transfer learning and domain adaptation · 44% Vision and language · 27% Segmentation and scene understanding · 14%

Topics — the 10 heaviest of 10, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Transfer learning and domain adaptation
meta-learning
1.032019
Amortized Bayesian Meta-Learning · ICLR (Poster) 2019
Meta-Learning for Semi-Supervised Few-Shot Classification · ICLR (Poster) 2018
Optimization as a Model for Few-Shot Learning · ICLR 2017
Computer vision › Vision and language › vision-language model
contrastive vision-language model
0.712023
Perceptual Grouping in Contrastive Vision-Language Models · ICCV 2023
Computer vision › Segmentation and scene understanding › image segmentation
unsupervised segmentation
0.712023
Perceptual Grouping in Contrastive Vision-Language Models · ICCV 2023
Computer vision › Vision and language
vision-language model
0.712023
Perceptual Grouping in Contrastive Vision-Language Models · ICCV 2023
Machine learning › Transfer learning and domain adaptation
few-shot learning
0.622018
Meta-Learning for Semi-Supervised Few-Shot Classification · ICLR (Poster) 2018
Optimization as a Model for Few-Shot Learning · ICLR 2017
Machine learning › Probabilistic and Bayesian machine learning
bayesian meta-learning
0.412019
Amortized Bayesian Meta-Learning · ICLR (Poster) 2019
Machine learning › Transfer learning and domain adaptation › meta-learning
few-shot meta-learning
0.312018
Meta-Learning for Semi-Supervised Few-Shot Classification · ICLR (Poster) 2018
Machine learning › Optimization for machine learning
learned optimizer
0.312017
Optimization as a Model for Few-Shot Learning · ICLR 2017
Machine learning › Transfer learning and domain adaptation › zero-shot learning
zero-shot classification
0.212023
Perceptual Grouping in Contrastive Vision-Language Models · ICCV 2023
Machine learning › Probabilistic and Bayesian machine learning › probabilistic inference › approximate inference › variational inference
amortized inference
0.112019
Amortized Bayesian Meta-Learning · ICLR (Poster) 2019

Methods — techniques the papers use, named apart from their topics

perceptual grouping · 0.7contrastive learning · 0.7meta-learning · 0.6amortized variational inference · 0.4optimization as a model · 0.3
YearPublicationVenuePosition
2023 Perceptual Grouping in Contrastive Vision-Language Models
abstract
Recent advances in zero-shot image recognition suggest that vision-language models learn generic visual representations with a high degree of semantic information that may be arbitrarily probed with natural language phrases. Understanding an image, however, is not just about understanding what content resides within an image, but importantly, where that content resides. In this work we examine how well vision-language models are able to understand where objects reside within an image and group together visually related parts of the imagery. We demonstrate how contemporary vision and language representation learning models based on contrastive losses and large web-based data capture limited object localization information. We propose a minimal set of modifications that results in models that uniquely learn both semantic and spatial information. We measure this performance in terms of zero-shot image recognition, unsupervised bottom-up and top-down semantic segmentations, as well as robustness analyses. We find that the resulting model achieves state-of-the-art results in terms of unsupervised segmentation, and demonstrate that the learned representations are uniquely robust to spurious correlations in datasets designed to probe the causal behavior of vision models.
Kanchana Ranasinghe, Brandon McKinzie, Sachin Ravi, Yinfei Yang, Alexander Toshev, Jonathon Shlens
ICCV3
2019 Amortized Bayesian Meta-Learning
Sachin Ravi, Alex Beatson
ICLR (Poster)1
2018 Meta-Learning for Semi-Supervised Few-Shot Classification
Mengye Ren, Eleni Triantafillou, Sachin Ravi, Jake Snell, Kevin Swersky, Josh Tenenbaum, Hugo Larochelle, Richard S. Zemel
ICLR (Poster)3
2017 Optimization as a Model for Few-Shot Learning
Sachin Ravi, Hugo Larochelle
ICLR1