activity
20172023
most citedSystem Design for a Data-driven and Explainable Customer Sentiment Monitor

27 citations · 86 across the 23 of their papers we have counts for

collaborators

26 papers

cs.CV2023★ 1 cited

Contrastive Language-Image Pretrained Models are Zero-Shot Human Scanpath Predictors

Dario Zanca, Andrea Zugarini, Simon Dietz +4

Understanding the mechanisms underlying human attention is a fundamental challenge for both vision science and artificial intelligence. While numerous computational models of free-…

cs.CV2023

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

Toni Albert, Bjoern Eskofier, Dario Zanca

As the field of deep learning steadily transitions from the realm of academic research to practical application, the significance of self-supervised pretraining methods has become…

cs.LG2023★ 2 cited

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

Kai Klede, Leo Schwinn, Dario Zanca +1

Clustering is at the very core of machine learning, and its applications proliferate with the increasing availability of data. However, as datasets grow, comparing clusterings with…

cs.CV2022

Simulating Human Gaze with Neural Visual Attention

Leo Schwinn, Doina Precup, Bjoern Eskofier +1

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. To integrate…

cs.CV2022

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

Thomas Altstidl, An Nguyen, Leo Schwinn +4

The widespread success of convolutional neural networks may largely be attributed to their intrinsic property of translation equivariance. However, convolutions are not equivariant…

cs.LG2022★ 1 cited

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

Christoffer Loeffler, Kion Fallah, Stefano Fenu +4

Humans innately measure distance between instances in an unlabeled dataset using an unknown similarity function. Distance metrics can only serve as proxy for similarity in informat…

cs.LG2022

Explain to Not Forget: Defending Against Catastrophic Forgetting with XAI

Sami Ede, Serop Baghdadlian, Leander Weber +4

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. Unfortunately, th…

cs.LG2022★ 2 cited

Improving Robustness against Real-World and Worst-Case Distribution Shifts through Decision Region Quantification

Leo Schwinn, Leon Bungert, An Nguyen +5

The reliability of neural networks is essential for their use in safety-critical applications. Existing approaches generally aim at improving the robustness of neural networks to e…

cs.CV2022★ 2 cited

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

Leo Schwinn, Doina Precup, Björn Eskofier +1

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. M…

cs.CV2022★ 5 cited

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

Christoffer Loeffler, Wei-Cheng Lai, Bjoern Eskofier +3

The correct interpretation of convolutional models is a hard problem for time series data. While saliency methods promise visual validation of predictions for image and language pr…

cs.CV2021

SVC-onGoing: Signature Verification Competition

Ruben Tolosana, Ruben Vera-Rodriguez, Carlos Gonzalez-Garcia +29

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 a…

cs.CV2021

ICDAR 2021 Competition on On-Line Signature Verification

Ruben Tolosana, Ruben Vera-Rodriguez, Carlos Gonzalez-Garcia +28

This paper describes the experimental framework and results of the ICDAR 2021 Competition on On-Line Signature Verification (SVC 2021). The goal of SVC 2021 is to evaluate the limi…

cs.LG2021

Towards an IMU-based Pen Online Handwriting Recognizer

Mohamad Wehbi, Tim Hamann, Jens Barth +3

Most online handwriting recognition systems require the use of specific writing surfaces to extract positional data. In this paper we present a online handwriting recognition syste…

cs.LG2021★ 9 cited

Exploring Misclassifications of Robust Neural Networks to Enhance Adversarial Attacks

Leo Schwinn, René Raab, An Nguyen +2

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

cs.LG2021★ 2 cited

Identifying Untrustworthy Predictions in Neural Networks by Geometric Gradient Analysis

Leo Schwinn, An Nguyen, René Raab +5

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

cs.LG2021★ 27 cited

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

An Nguyen, Stefan Foerstel, Thomas Kittler +8

The most important goal of customer services is to keep the customer satisfied. However, service resources are always limited and must be prioritized. Therefore, it is important to…

cs.LG2020★ 7 cited

Dynamically Sampled Nonlocal Gradients for Stronger Adversarial Attacks

Leo Schwinn, An Nguyen, René Raab +4

The vulnerability of deep neural networks to small and even imperceptible perturbations has become a central topic in deep learning research. Although several sophisticated defense…

cs.CV2020★ 7 cited

Gravitational Models Explain Shifts on Human Visual Attention

Dario Zanca, Marco Gori, Stefano Melacci +1

Visual attention refers to the human brain's ability to select relevant sensory information for preferential processing, improving performance in visual and cognitive tasks. It pro…

cs.CV2020★ 4 cited

Wave Propagation of Visual Stimuli in Focus of Attention

Lapo Faggi, Alessandro Betti, Dario Zanca +2

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

q-bio.NC2020

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

Alessandro Rossi, Sara Ermini, Dario Bernabini +4

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

cs.CV2020

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

Dario Zanca, Stefano Melacci, Marco Gori

Human visual attention is a complex phenomenon. A computational modeling of this phenomenon must take into account where people look in order to evaluate which are the salient loca…

eess.IV2020

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

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 cogniti…

cs.CV2018★ 1 cited

Visual Attention driven by Convolutional Features

Dario Zanca, Marco Gori

The understanding of where humans look in a scene is a problem of great interest in visual perception and computer vision. When eye-tracking devices are not a viable option, models…

cs.LG2018★ 3 cited

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

Giuseppe Marra, Dario Zanca, Alessandro Betti +1

The effectiveness of deep neural architectures has been widely supported in terms of both experimental and foundational principles. There is also clear evidence that the activation…