Search Results for author: Jovana Mitrovic

Found 14 papers, 4 papers with code

Neural Algorithmic Reasoning with Causal Regularisation

no code implementations20 Feb 2023 Beatrice Bevilacqua, Kyriacos Nikiforou, Borja Ibarz, Ioana Bica, Michela Paganini, Charles Blundell, Jovana Mitrovic, Petar Veličković

We evaluate our method on the CLRS algorithmic reasoning benchmark, where we show up to 3$\times$ improvements on the OOD test data.

Data Augmentation

SemPPL: Predicting pseudo-labels for better contrastive representations

2 code implementations12 Jan 2023 Matko Bošnjak, Pierre H. Richemond, Nenad Tomasev, Florian Strub, Jacob C. Walker, Felix Hill, Lars Holger Buesing, Razvan Pascanu, Charles Blundell, Jovana Mitrovic

We propose a new semi-supervised learning method, Semantic Positives via Pseudo-Labels (SemPPL), that combines labelled and unlabelled data to learn informative representations.

Contrastive Learning Pseudo Label

Pushing the limits of self-supervised ResNets: Can we outperform supervised learning without labels on ImageNet?

no code implementations13 Jan 2022 Nenad Tomasev, Ioana Bica, Brian McWilliams, Lars Buesing, Razvan Pascanu, Charles Blundell, Jovana Mitrovic

Most notably, ReLICv2 is the first unsupervised representation learning method to consistently outperform the supervised baseline in a like-for-like comparison over a range of ResNet architectures.

Representation Learning Self-Supervised Image Classification +3

Representation Learning via Invariant Causal Mechanisms

2 code implementations15 Oct 2020 Jovana Mitrovic, Brian McWilliams, Jacob Walker, Lars Buesing, Charles Blundell

Self-supervised learning has emerged as a strategy to reduce the reliance on costly supervised signal by pretraining representations only using unlabeled data.

Contrastive Learning Out-of-Distribution Generalization +3

Amortized learning of neural causal representations

no code implementations21 Aug 2020 Nan Rosemary Ke, Jane. X. Wang, Jovana Mitrovic, Martin Szummer, Danilo J. Rezende

The CRN represent causal models using continuous representations and hence could scale much better with the number of variables.

Infinitely Deep Infinite-Width Networks

no code implementations ICLR 2019 Jovana Mitrovic, Peter Wirnsberger, Charles Blundell, Dino Sejdinovic, Yee Whye Teh

Infinite-width neural networks have been extensively used to study the theoretical properties underlying the extraordinary empirical success of standard, finite-width neural networks.

Hierarchical Adversarially Learned Inference

no code implementations ICLR 2018 Mohamed Ishmael Belghazi, Sai Rajeswar, Olivier Mastropietro, Negar Rostamzadeh, Jovana Mitrovic, Aaron Courville

We propose a novel hierarchical generative model with a simple Markovian structure and a corresponding inference model.

Attribute

DR-ABC: Approximate Bayesian Computation with Kernel-Based Distribution Regression

no code implementations15 Feb 2016 Jovana Mitrovic, Dino Sejdinovic, Yee Whye Teh

Approximate Bayesian computation (ABC) is an inference framework that constructs an approximation to the true likelihood based on the similarity between the observed and simulated data as measured by a predefined set of summary statistics.

regression

Cannot find the paper you are looking for? You can Submit a new open access paper.