Search Results for author: Viktoriia Sharmanska

Found 22 papers, 6 papers with code

Distribution Matching for Multi-Task Learning of Classification Tasks: a Large-Scale Study on Faces & Beyond

no code implementations2 Jan 2024 Dimitrios Kollias, Viktoriia Sharmanska, Stefanos Zafeiriou

Multi-Task Learning (MTL) is a framework, where multiple related tasks are learned jointly and benefit from a shared representation space, or parameter transfer.

 Ranked #1 on Facial Expression Recognition (FER) on AffectNet (Accuracy (7 emotion) metric, using extra training data)

Action Unit Detection Face Recognition +3

Okapi: Generalising Better by Making Statistical Matches Match

1 code implementation7 Nov 2022 Myles Bartlett, Sara Romiti, Viktoriia Sharmanska, Novi Quadrianto

In order to perform the online matching in a runtime- and memory-efficient way, we draw upon the self-supervised literature and combine a memory bank with a slow-moving momentum encoder.

Benchmarking Binary Classification +1

RealPatch: A Statistical Matching Framework for Model Patching with Real Samples

1 code implementation3 Aug 2022 Sara Romiti, Christopher Inskip, Viktoriia Sharmanska, Novi Quadrianto

We demonstrate the effectiveness of RealPatch on three benchmark datasets, CelebA, Waterbirds and a subset of iWildCam, showing improvements in worst-case subgroup performance and in subgroup performance gap in binary classification.

Binary Classification Data Augmentation

DAD-3DHeads: A Large-scale Dense, Accurate and Diverse Dataset for 3D Head Alignment from a Single Image

1 code implementation CVPR 2022 Tetiana Martyniuk, Orest Kupyn, Yana Kurlyak, Igor Krashenyi, Jiři Matas, Viktoriia Sharmanska

Experimentally, DAD-3DNet outperforms or is comparable to the state-of-the-art models in (i) 3D Head Pose Estimation on AFLW2000-3D and BIWI, (ii) 3D Face Shape Reconstruction on NoW and Feng, and (iii) 3D Dense Head Alignment and 3D Landmarks Estimation on DAD-3DHeads dataset.

3D Reconstruction Head Pose Estimation

Addressing Missing Sources with Adversarial Support-Matching

1 code implementation24 Mar 2022 Thomas Kehrenberg, Myles Bartlett, Viktoriia Sharmanska, Novi Quadrianto

We investigate a scenario in which the absence of certain data is linked to the second level of a two-level hierarchy in the data.

Fairness

Distribution Matching for Heterogeneous Multi-Task Learning: a Large-scale Face Study

no code implementations8 May 2021 Dimitrios Kollias, Viktoriia Sharmanska, Stefanos Zafeiriou

Based on this approach, we build FaceBehaviorNet, the first framework for large-scale face analysis, by jointly learning all facial behavior tasks.

Ranked #5 on Facial Expression Recognition (FER) on RAF-DB (Avg. Accuracy metric, using extra training data)

Action Unit Detection Attribute +6

Head2HeadFS: Video-based Head Reenactment with Few-shot Learning

no code implementations30 Mar 2021 Michail Christos Doukas, Mohammad Rami Koujan, Viktoriia Sharmanska, Stefanos Zafeiriou

Head reenactment is an even more challenging task, which aims at transferring not only the facial expression, but also the entire head pose from a source person to a target.

Few-Shot Learning Pose Transfer

Zero-shot Fairness with Invisible Demographics

no code implementations1 Jan 2021 Thomas Kehrenberg, Viktoriia Sharmanska, Myles Scott Bartlett, Novi Quadrianto

In a statistical notion of algorithmic fairness, we partition individuals into groups based on some key demographic factors such as race and gender, and require that some statistics of a classifier be approximately equalized across those groups.

Disentanglement Fairness

HeadGAN: One-shot Neural Head Synthesis and Editing

no code implementations ICCV 2021 Michail Christos Doukas, Stefanos Zafeiriou, Viktoriia Sharmanska

Recent attempts to solve the problem of head reenactment using a single reference image have shown promising results.

Head2Head++: Deep Facial Attributes Re-Targeting

1 code implementation17 Jun 2020 Michail Christos Doukas, Mohammad Rami Koujan, Viktoriia Sharmanska, Anastasios Roussos

Facial video re-targeting is a challenging problem aiming to modify the facial attributes of a target subject in a seamless manner by a driving monocular sequence.

Contrastive Examples for Addressing the Tyranny of the Majority

no code implementations14 Apr 2020 Viktoriia Sharmanska, Lisa Anne Hendricks, Trevor Darrell, Novi Quadrianto

Computer vision algorithms, e. g. for face recognition, favour groups of individuals that are better represented in the training data.

Face Recognition

Face Behavior a la carte: Expressions, Affect and Action Units in a Single Network

no code implementations15 Oct 2019 Dimitrios Kollias, Viktoriia Sharmanska, Stefanos Zafeiriou

We present the first and the largest study of all facial behaviour tasks learned jointly in a single multi-task, multi-domain and multi-label network, which we call FaceBehaviorNet.

Emotion Recognition Few-Shot Learning

Video-to-Video Translation for Visual Speech Synthesis

no code implementations28 May 2019 Michail C. Doukas, Viktoriia Sharmanska, Stefanos Zafeiriou

Despite remarkable success in image-to-image translation that celebrates the advancements of generative adversarial networks (GANs), very limited attempts are known for video domain translation.

Image-to-Image Translation Speech Synthesis +1

Discovering Fair Representations in the Data Domain

1 code implementation CVPR 2019 Novi Quadrianto, Viktoriia Sharmanska, Oliver Thomas

On face images of the recent DiF dataset, with the same gender attribute, our method adjusts nose regions.

Attribute Fairness +1

Recycling Privileged Learning and Distribution Matching for Fairness

no code implementations NeurIPS 2017 Novi Quadrianto, Viktoriia Sharmanska

We set an overarching goal to develop a unified machine learning framework that is able to handle any definitions of fairness, their combinations, and also new definitions that might be stipulated in the future.

BIG-bench Machine Learning Fairness

Curriculum Learning of Multiple Tasks

no code implementations CVPR 2015 Anastasia Pentina, Viktoriia Sharmanska, Christoph H. Lampert

Sharing information between multiple tasks enables algorithms to achieve good generalization performance even from small amounts of training data.

Multi-Task Learning

Learning to Transfer Privileged Information

no code implementations1 Oct 2014 Viktoriia Sharmanska, Novi Quadrianto, Christoph H. Lampert

We interpret these methods as learning easiness and hardness of the objects in the privileged space and then transferring this knowledge to train a better classifier in the original space.

General Classification

Mind the Nuisance: Gaussian Process Classification using Privileged Noise

no code implementations NeurIPS 2014 Daniel Hernández-Lobato, Viktoriia Sharmanska, Kristian Kersting, Christoph H. Lampert, Novi Quadrianto

That is, in contrast to the standard GPC setting, the latent function is not just a nuisance but a feature: it becomes a natural measure of confidence about the training data by modulating the slope of the GPC sigmoid likelihood function.

Classification General Classification

The Supervised IBP: Neighbourhood Preserving Infinite Latent Feature Models

no code implementations26 Sep 2013 Novi Quadrianto, Viktoriia Sharmanska, David A. Knowles, Zoubin Ghahramani

We propose a probabilistic model to infer supervised latent variables in the Hamming space from observed data.

Retrieval

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