Search Results for author: Xavier Binefa

Found 10 papers, 1 papers with code

Machine Learning-based Lie Detector applied to a Novel Annotated Game Dataset

no code implementations26 Apr 2021 Nuria Rodriguez-Diaz, Decky Aspandi, Federico Sukno, Xavier Binefa

Lie detection is considered a concern for everyone in their day to day life given its impact on human interactions.

BIG-bench Machine Learning

An Enhanced Adversarial Network with Combined Latent Features for Spatio-Temporal Facial Affect Estimation in the Wild

1 code implementation18 Feb 2021 Decky Aspandi, Federico Sukno, Björn Schuller, Xavier Binefa

This paper addresses these shortcomings by proposing a novel model that efficiently extracts both spatial and temporal features of the data by means of its enhanced temporal modelling based on latent features.

Adversarial-based neural networks for affect estimations in the wild

no code implementations3 Feb 2020 Decky Aspandi, Adria Mallol-Ragolta, Björn Schuller, Xavier Binefa

However, the use of latent features, which is feasible through adversarial learning, is not largely explored, yet.

End-to-end facial and physiological model for Affective Computing and applications

no code implementations10 Dec 2019 Joaquim Comas, Decky Aspandi, Xavier Binefa

In this work, we propose a multi-modal emotion recognition model based on deep learning techniques using the combination of peripheral physiological signals and facial expressions.

Arousal Estimation Emotion Recognition

Reference-based Variational Autoencoders

no code implementations ICLR Workshop LLD 2019 Adrià Ruiz, Oriol Martinez, Xavier Binefa, Jakob Verbeek

Given a pool of unlabelled images, the goal is to learn a representation where a set of target factors are disentangled from others.

Attribute Conditional Image Generation

Learning Disentangled Representations with Reference-Based Variational Autoencoders

no code implementations24 Jan 2019 Adria Ruiz, Oriol Martinez, Xavier Binefa, Jakob Verbeek

Given a pool of unlabeled images, the goal is to learn a representation where a set of target factors are disentangled from others.

Attribute Conditional Image Generation

Multi-instance Dynamic Ordinal Random Fields for Weakly-Supervised Pain Intensity Estimation

no code implementations6 Sep 2016 Adria Ruiz, Ognjen Rudovic, Xavier Binefa, Maja Pantic

In this paper, we address the Multi-Instance-Learning (MIL) problem when bag labels are naturally represented as ordinal variables (Multi--Instance--Ordinal Regression).

Temporal Sequences

From Emotions to Action Units With Hidden and Semi-Hidden-Task Learning

no code implementations ICCV 2015 Adria Ruiz, Joost Van de Weijer, Xavier Binefa

Additionally, we show that SHTL achieves competitive performance compared with state-of-the-art Transductive Learning approaches which face the problem of limited training data by using unlabelled test samples during training.

Transductive Learning

Very Fast Solution to the PnP Problem with Algebraic Outlier Rejection

no code implementations CVPR 2014 Luis Ferraz, Xavier Binefa, Francesc Moreno-Noguer

Given a set of 3D-to-2D matches, we formulate pose estimation problem as a low-rank homogeneous sys- tem where the solution lies on its 1D null space.

Pose Estimation

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