Search Results for author: Dario Zanca

Found 28 papers, 11 papers with code

Trends, Applications, and Challenges in Human Attention Modelling

1 code implementation28 Feb 2024 Giuseppe Cartella, Marcella Cornia, Vittorio Cuculo, Alessandro D'Amelio, Dario Zanca, Giuseppe Boccignone, Rita Cucchiara

Human attention modelling has proven, in recent years, to be particularly useful not only for understanding the cognitive processes underlying visual exploration, but also for providing support to artificial intelligence models that aim to solve problems in various domains, including image and video processing, vision-and-language applications, and language modelling.

Language Modelling

From Patches to Objects: Exploiting Spatial Reasoning for Better Visual Representations

no code implementations21 May 2023 Toni Albert, Bjoern Eskofier, Dario Zanca

In this paper, we propose a novel auxiliary pretraining method that is based on spatial reasoning.

Contrastive Learning

FastAMI -- a Monte Carlo Approach to the Adjustment for Chance in Clustering Comparison Metrics

2 code implementations3 May 2023 Kai Klede, Leo Schwinn, Dario Zanca, Björn Eskofier

Clustering is at the very core of machine learning, and its applications proliferate with the increasing availability of data.

Clustering

Simulating Human Gaze with Neural Visual Attention

no code implementations22 Nov 2022 Leo Schwinn, Doina Precup, Bjoern Eskofier, Dario Zanca

Existing models of human visual attention are generally unable to incorporate direct task guidance and therefore cannot model an intent or goal when exploring a scene.

Just a Matter of Scale? Reevaluating Scale Equivariance in Convolutional Neural Networks

1 code implementation18 Nov 2022 Thomas Altstidl, An Nguyen, Leo Schwinn, Franz Köferl, Christopher Mutschler, Björn Eskofier, Dario Zanca

We also demonstrate that our family of models is able to generalize well towards larger scales and improve scale equivariance.

Active Learning of Ordinal Embeddings: A User Study on Football Data

no code implementations26 Jul 2022 Christoffer Loeffler, Kion Fallah, Stefano Fenu, Dario Zanca, Bjoern Eskofier, Christopher John Rozell, Christopher Mutschler

We adapt an entropy-based active learning method with recent work from triplet mining to collect easy-to-answer but still informative annotations from human participants and use them to train a deep convolutional network that generalizes to unseen samples.

Active Learning Information Retrieval +3

Explain to Not Forget: Defending Against Catastrophic Forgetting with XAI

no code implementations4 May 2022 Sami Ede, Serop Baghdadlian, Leander Weber, An Nguyen, Dario Zanca, Wojciech Samek, Sebastian Lapuschkin

The ability to continuously process and retain new information like we do naturally as humans is a feat that is highly sought after when training neural networks.

Explainable Artificial Intelligence (XAI)

Behind the Machine's Gaze: Neural Networks with Biologically-inspired Constraints Exhibit Human-like Visual Attention

no code implementations19 Apr 2022 Leo Schwinn, Doina Precup, Björn Eskofier, Dario Zanca

By and large, existing computational models of visual attention tacitly assume perfect vision and full access to the stimulus and thereby deviate from foveated biological vision.

Don't Get Me Wrong: How to Apply Deep Visual Interpretations to Time Series

1 code implementation14 Mar 2022 Christoffer Loeffler, Wei-Cheng Lai, Bjoern Eskofier, Dario Zanca, Lukas Schmidt, Christopher Mutschler

Explanatory visual interpretation approaches for image, and natural language processing allow domain experts to validate and understand almost any deep learning model.

Time Series Time Series Analysis +2

Objective Evaluation of Deep Visual Interpretations on Time Series Data

no code implementations29 Sep 2021 Christoffer Löffler, Wei-Cheng Lai, Lukas M Schmidt, Dario Zanca, Bjoern Eskofier, Christopher Mutschler

(Explanatory) visual interpretation approaches for image and natural language processing allow domain experts to validate and understand almost any deep learning model.

Time Series Time Series Analysis +1

SVC-onGoing: Signature Verification Competition

1 code implementation13 Aug 2021 Ruben Tolosana, Ruben Vera-Rodriguez, Carlos Gonzalez-Garcia, Julian Fierrez, Aythami Morales, Javier Ortega-Garcia, Juan Carlos Ruiz-Garcia, Sergio Romero-Tapiador, Santiago Rengifo, Miguel Caruana, Jiajia Jiang, Songxuan Lai, Lianwen Jin, Yecheng Zhu, Javier Galbally, Moises Diaz, Miguel Angel Ferrer, Marta Gomez-Barrero, Ilya Hodashinsky, Konstantin Sarin, Artem Slezkin, Marina Bardamova, Mikhail Svetlakov, Mohammad Saleem, Cintia Lia Szucs, Bence Kovari, Falk Pulsmeyer, Mohamad Wehbi, Dario Zanca, Sumaiya Ahmad, Sarthak Mishra, Suraiya Jabin

This article presents SVC-onGoing, an on-going competition for on-line signature verification where researchers can easily benchmark their systems against the state of the art in an open common platform using large-scale public databases, such as DeepSignDB and SVC2021_EvalDB, and standard experimental protocols.

Task 2

Towards an IMU-based Pen Online Handwriting Recognizer

no code implementations26 May 2021 Mohamad Wehbi, Tim Hamann, Jens Barth, Peter Kaempf, Dario Zanca, Bjoern Eskofier

Most online handwriting recognition systems require the use of specific writing surfaces to extract positional data.

Handwriting Recognition Language Modelling

Exploring Misclassifications of Robust Neural Networks to Enhance Adversarial Attacks

no code implementations21 May 2021 Leo Schwinn, René Raab, An Nguyen, Dario Zanca, Bjoern Eskofier

Progress in making neural networks more robust against adversarial attacks is mostly marginal, despite the great efforts of the research community.

Identifying Untrustworthy Predictions in Neural Networks by Geometric Gradient Analysis

1 code implementation24 Feb 2021 Leo Schwinn, An Nguyen, René Raab, Leon Bungert, Daniel Tenbrinck, Dario Zanca, Martin Burger, Bjoern Eskofier

The susceptibility of deep neural networks to untrustworthy predictions, including out-of-distribution (OOD) data and adversarial examples, still prevent their widespread use in safety-critical applications.

System Design for a Data-driven and Explainable Customer Sentiment Monitor

1 code implementation11 Jan 2021 An Nguyen, Stefan Foerstel, Thomas Kittler, Andrey Kurzyukov, Leo Schwinn, Dario Zanca, Tobias Hipp, Da Jun Sun, Michael Schrapp, Eva Rothgang, Bjoern Eskofier

The overall framework is currently deployed, learns and evaluates predictive models from terabytes of IoT and enterprise data to actively monitor the customer sentiment for a fleet of thousands of high-end medical devices.

Interpretable Machine Learning Management

Dynamically Sampled Nonlocal Gradients for Stronger Adversarial Attacks

no code implementations5 Nov 2020 Leo Schwinn, An Nguyen, René Raab, Dario Zanca, Bjoern Eskofier, Daniel Tenbrinck, Martin Burger

We empirically show that by incorporating this nonlocal gradient information, we are able to give a more accurate estimation of the global descent direction on noisy and non-convex loss surfaces.

Adversarial Attack

Gravitational Models Explain Shifts on Human Visual Attention

no code implementations15 Sep 2020 Dario Zanca, Marco Gori, Stefano Melacci, Alessandra Rufa

Another where the information from these maps is merged in order to select a single location to be attended for further and more complex computations and reasoning.

Wave Propagation of Visual Stimuli in Focus of Attention

no code implementations19 Jun 2020 Lapo Faggi, Alessandro Betti, Dario Zanca, Stefano Melacci, Marco Gori

Fast reactions to changes in the surrounding visual environment require efficient attention mechanisms to reallocate computational resources to most relevant locations in the visual field.

Scanpath prediction

Toward Improving the Evaluation of Visual Attention Models: a Crowdsourcing Approach

no code implementations11 Feb 2020 Dario Zanca, Stefano Melacci, Marco Gori

A computational modeling of this phenomenon must take into account where people look in order to evaluate which are the salient locations (spatial distribution of the fixations), when they look in those locations to understand the temporal development of the exploration (temporal order of the fixations), and how they move from one location to another with respect to the dynamics of the scene and the mechanics of the eyes (dynamics).

Saliency Prediction

1-D Convlutional Neural Networks for the Analysis of Pupil Size Variations in Scotopic Conditions

no code implementations6 Feb 2020 Dario Zanca, Alessandra Rufa

It is well known that a systematic analysis of the pupil size variations, recorded by means of an eye-tracker, is a rich source of information about a subject's arousal and cognitive state.

Benchmarking Binary Classification +2

End-to-End Models for the Analysis of System 1 and System 2 Interactions based on Eye-Tracking Data

no code implementations3 Feb 2020 Alessandro Rossi, Sara Ermini, Dario Bernabini, Dario Zanca, Marino Todisco, Alessandro Genovese, Antonio Rizzo

While theories postulating a dual cognitive system take hold, quantitative confirmations are still needed to understand and identify interactions between the two systems or conflict events.

Learning Neuron Non-Linearities with Kernel-Based Deep Neural Networks

no code implementations ICLR 2019 Giuseppe Marra, Dario Zanca, Alessandro Betti, Marco Gori

The effectiveness of deep neural architectures has been widely supported in terms of both experimental and foundational principles.

Variational Laws of Visual Attention for Dynamic Scenes

1 code implementation NeurIPS 2017 Dario Zanca, Marco Gori

We devise variational laws of the eye-movement that rely on a generalized view of the Least Action Principle in physics.

Saliency Detection Scanpath prediction

Neural Networks for Beginners. A fast implementation in Matlab, Torch, TensorFlow

1 code implementation10 Mar 2017 Francesco Giannini, Vincenzo Laveglia, Alessandro Rossi, Dario Zanca, Andrea Zugarini

This report provides an introduction to some Machine Learning tools within the most common development environments.

BIG-bench Machine Learning

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