Search Results for author: Manuel Günther

Found 18 papers, 6 papers with code

Biased Binary Attribute Classifiers Ignore the Majority Classes

no code implementations21 Mar 2024 Xinyi Zhang, Johanna Sophie Bieri, Manuel Günther

In this paper, we extend gradient-based CAM techniques to work with binary classifiers and visualize the active regions for binary facial attribute classifiers.

Attribute Binary Classification

Open-Set Face Recognition with Maximal Entropy and Objectosphere Loss

1 code implementation1 Nov 2023 Rafael Henrique Vareto, Yu Linghu, Terrance E. Boult, William Robson Schwartz, Manuel Günther

MEL modifies the traditional Cross-Entropy loss in favor of increasing the entropy for negative samples and attaches a penalty to known target classes in pursuance of gallery specialization.

Domain Adaptation Face Recognition +3

Bridging Trustworthiness and Open-World Learning: An Exploratory Neural Approach for Enhancing Interpretability, Generalization, and Robustness

no code implementations7 Aug 2023 Shide Du, Zihan Fang, Shiyang Lan, Yanchao Tan, Manuel Günther, Shiping Wang, Wenzhong Guo

As researchers strive to narrow the gap between machine intelligence and human through the development of artificial intelligence technologies, it is imperative that we recognize the critical importance of trustworthiness in open-world, which has become ubiquitous in all aspects of daily life for everyone.

Consistency and Accuracy of CelebA Attribute Values

1 code implementation13 Oct 2022 Haiyu Wu, Grace Bezold, Manuel Günther, Terrance Boult, Michael C. King, Kevin W. Bowyer

Two annotators independently assigning attribute values shows that only 12 of 40 common attributes are assigned values with >= 95% consistency, and three (high cheekbones, pointed nose, oval face) have essentially random consistency.

Attribute Facial Attribute Classification

Large-Scale Open-Set Classification Protocols for ImageNet

1 code implementation13 Oct 2022 Andres Palechor, Annesha Bhoumik, Manuel Günther

Open-Set Classification (OSC) intends to adapt closed-set classification models to real-world scenarios, where the classifier must correctly label samples of known classes while rejecting previously unseen unknown samples.

Classification open-set classification +1

Eight Years of Face Recognition Research: Reproducibility, Achievements and Open Issues

no code implementations8 Aug 2022 Tiago de Freitas Pereira, Dominic Schmidli, Yu Linghu, Xinyi Zhang, Sébastien Marcel, Manuel Günther

With the popularity of deep learning and its capability to solve a huge variety of different problems, face recognition researchers have concentrated effort on creating better models under this paradigm.

Face Recognition Open Set Learning

Reducing Network Agnostophobia

4 code implementations NeurIPS 2018 Akshay Raj Dhamija, Manuel Günther, Terrance E. Boult

Agnostophobia, the fear of the unknown, can be experienced by deep learning engineers while applying their networks to real-world applications.

Facial Attributes: Accuracy and Adversarial Robustness

no code implementations4 Jan 2018 Andras Rozsa, Manuel Günther, Ethan M. Rudd, Terrance E. Boult

Facial attributes, emerging soft biometrics, must be automatically and reliably extracted from images in order to be usable in stand-alone systems.

Adversarial Robustness Attribute +1

Adversarial Robustness: Softmax versus Openmax

no code implementations5 Aug 2017 Andras Rozsa, Manuel Günther, Terrance E. Boult

Deep neural networks (DNNs) provide state-of-the-art results on various tasks and are widely used in real world applications.

Adversarial Robustness Open Set Learning

Toward Open-Set Face Recognition

no code implementations3 May 2017 Manuel Günther, Steve Cruz, Ethan M. Rudd, Terrance E. Boult

In this paper, we address the widespread misconception that thresholding verification-like scores is a good way to solve the open-set face identification problem, by formulating an open-set face identification protocol and evaluating different strategies for assessing similarity.

Face Identification Face Recognition +2

LOTS about Attacking Deep Features

no code implementations18 Nov 2016 Andras Rozsa, Manuel Günther, Terrance E. Boult

We demonstrate that iterative LOTS is very effective and show that systems utilizing deep features are easier to attack than the end-to-end network.

Adversarial Robustness

AFFACT - Alignment-Free Facial Attribute Classification Technique

no code implementations18 Nov 2016 Manuel Günther, Andras Rozsa, Terrance E. Boult

Using an ensemble of three ResNets, we obtain the new state-of-the-art facial attribute classification error of 8. 00% on the aligned images of the CelebA dataset.

Attribute Classification +3

Are Accuracy and Robustness Correlated?

no code implementations14 Oct 2016 Andras Rozsa, Manuel Günther, Terrance E. Boult

In this paper, we perform experiments on various adversarial example generation approaches with multiple deep convolutional neural networks including Residual Networks, the best performing models on ImageNet Large-Scale Visual Recognition Challenge 2015.

BIG-bench Machine Learning General Classification +1

Are Facial Attributes Adversarially Robust?

no code implementations18 May 2016 Andras Rozsa, Manuel Günther, Ethan M. Rudd, Terrance E. Boult

We show that FFA generates more adversarial examples than other related algorithms, and that DCNNs for certain attributes are generally robust to adversarial inputs, while DCNNs for other attributes are not.

Attribute Attribute Extraction +2

MOON: A Mixed Objective Optimization Network for the Recognition of Facial Attributes

4 code implementations22 Mar 2016 Ethan Rudd, Manuel Günther, Terrance Boult

Unfortunately, it can be difficult to apply joint optimization to DCNNs when training data is imbalanced, and re-balancing multi-label data directly is structurally infeasible, since adding/removing data to balance one label will change the sampling of the other labels.

Attribute Attribute Extraction +1

A Survey of Stealth Malware: Attacks, Mitigation Measures, and Steps Toward Autonomous Open World Solutions

no code implementations19 Mar 2016 Ethan M. Rudd, Andras Rozsa, Manuel Günther, Terrance E. Boult

While machine learning offers promising potential for increasingly autonomous solutions with improved generalization to new malware types, both at the network level and at the host level, our findings suggest that several flawed assumptions inherent to most recognition algorithms prevent a direct mapping between the stealth malware recognition problem and a machine learning solution.

BIG-bench Machine Learning

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