Search Results for author: Ioannis A. Kakadiaris

Found 28 papers, 2 papers with code

Equal Confusion Fairness: Measuring Group-Based Disparities in Automated Decision Systems

1 code implementation2 Jul 2023 Furkan Gursoy, Ioannis A. Kakadiaris

Generalizing this intuition, this paper proposes a new equal confusion fairness test to check an automated decision system for fairness and a new confusion parity error to quantify the extent of any unfairness.

Fairness

Accuracy, Fairness, and Interpretability of Machine Learning Criminal Recidivism Models

no code implementations14 Sep 2022 Eric Ingram, Furkan Gursoy, Ioannis A. Kakadiaris

Criminal recidivism models are tools that have gained widespread adoption by parole boards across the United States to assist with parole decisions.

Fairness

Error Parity Fairness: Testing for Group Fairness in Regression Tasks

no code implementations16 Aug 2022 Furkan Gursoy, Ioannis A. Kakadiaris

Overall, the proposed regression fairness testing methodology fills a gap in the fair machine learning literature and may serve as a part of larger accountability assessments and algorithm audits.

Fairness regression

System Cards for AI-Based Decision-Making for Public Policy

no code implementations1 Mar 2022 Furkan Gursoy, Ioannis A. Kakadiaris

This work also proposes system cards to serve as scorecards presenting the outcomes of such audits.

Decision Making Face Recognition

A Case Study of Deep Learning Based Multi-Modal Methods for Predicting the Age-Suitability Rating of Movie Trailers

no code implementations26 Jan 2021 Mahsa Shafaei, Christos Smailis, Ioannis A. Kakadiaris, Thamar Solorio

In this work, we explore different approaches to combine modalities for the problem of automated age-suitability rating of movie trailers.

DBLFace: Domain-Based Labels for NIR-VIS Heterogeneous Face Recognition

no code implementations8 Oct 2020 Ha Le, Ioannis A. Kakadiaris

In this paper, we introduce Domain-Based Label Face (DBLFace), a learning approach based on the assumption that a subject is not represented by a single label but by a set of labels.

Face Recognition Heterogeneous Face Recognition

DETCID: Detection of Elongated Touching Cells with Inhomogeneous Illumination using a Deep Adversarial Network

no code implementations13 Jul 2020 Ali Memariani, Ioannis A. Kakadiaris

However, detecting C. diff cells in SEM images is a challenging problem due to the presence of inhomogeneous illumination and occlusion.

Cell Detection

On Improving the Generalization of Face Recognition in the Presence of Occlusions

no code implementations11 Jun 2020 Xiang Xu, Nikolaos Sarafianos, Ioannis A. Kakadiaris

In this paper, we address a key limitation of existing 2D face recognition methods: robustness to occlusions.

Face Recognition

Adversarial Representation Learning for Text-to-Image Matching

no code implementations ICCV 2019 Nikolaos Sarafianos, Xiang Xu, Ioannis A. Kakadiaris

For many computer vision applications such as image captioning, visual question answering, and person search, learning discriminative feature representations at both image and text level is an essential yet challenging problem.

Image Captioning Language Modelling +5

Occlusion-guided compact template learning for ensemble deep network-based pose-invariant face recognition

no code implementations12 Mar 2019 Yuhang Wu, Ioannis A. Kakadiaris

The compact face representation is not sensitive to the number of patches that are used to construct the facial template and is more suitable for incorporating the information from different view angles for image-set based face recognition.

Face Recognition Face Verification +1

Open Source Face Recognition Performance Evaluation Package

no code implementations27 Jan 2019 Xiang Xu, Ioannis A. Kakadiaris

Biometrics-related research has been accelerated significantly by deep learning technology.

Face Recognition

Deep Imbalanced Attribute Classification using Visual Attention Aggregation

2 code implementations ECCV 2018 Nikolaos Sarafianos, Xiang Xu, Ioannis A. Kakadiaris

For many computer vision applications, such as image description and human identification, recognizing the visual attributes of humans is an essential yet challenging problem.

Attribute Classification +1

Fully Associative Patch-based 1-to-N Matcher for Face Recognition

no code implementations15 May 2018 Lingfeng Zhang, Ioannis A. Kakadiaris

A Fully Associative Patch-based Signature Matcher (FAPSM) is proposed so that the local matching identity of each patch contributes to the global matching identities of all the patches.

Face Recognition

A Hierarchical Matcher using Local Classifier Chains

no code implementations7 May 2018 Lingfeng Zhang, Ioannis A. Kakadiaris

This paper focuses on improving the performance of current convolutional neural networks in visual recognition without changing the network architecture.

Face Recognition

Patch-based Face Recognition using a Hierarchical Multi-label Matcher

no code implementations3 Apr 2018 Lingfeng Zhang, Pengfei Dou, Ioannis A. Kakadiaris

Three ways are introduced to learn the global matching: majority voting, l1-regularized weighting, and decision rule.

Face Recognition

A Face Recognition Signature Combining Patch-based Features with Soft Facial Attributes

no code implementations25 Mar 2018 Lingfeng Zhang, Pengfei Dou, Ioannis A. Kakadiaris

This paper focuses on improving face recognition performance with a new signature combining implicit facial features with explicit soft facial attributes.

Face Recognition

Convolutional Point-set Representation: A Convolutional Bridge Between a Densely Annotated Image and 3D Face Alignment

no code implementations17 Mar 2018 Yuhang Wu, Le Anh Vu Ha, Xiang Xu, Ioannis A. Kakadiaris

The method relies on Convolutional Point-set Representation (CPR), a carefully designed matrix representation to summarize different layers of information encoded in the set of detected points in the annotated image.

3D Face Alignment Face Alignment

Curriculum Learning of Visual Attribute Clusters for Multi-Task Classification

no code implementations19 Sep 2017 Nikolaos Sarafianos, Theodore Giannakopoulos, Christophoros Nikou, Ioannis A. Kakadiaris

In this paper, we introduce a novel method to combine the advantages of both multi-task and curriculum learning in a visual attribute classification framework.

Attribute Classification +2

Human Activity Recognition Using Robust Adaptive Privileged Probabilistic Learning

no code implementations19 Sep 2017 Michalis Vrigkas, Evangelos Kazakos, Christophoros Nikou, Ioannis A. Kakadiaris

In this work, a novel method based on the learning using privileged information (LUPI) paradigm for recognizing complex human activities is proposed that handles missing information during testing.

Human Activity Recognition

When 3D-Aided 2D Face Recognition Meets Deep Learning: An extended UR2D for Pose-Invariant Face Recognition

no code implementations19 Sep 2017 Xiang Xu, Pengfei Dou, Ha A. Le, Ioannis A. Kakadiaris

Extensive experiments are conducted on the UHDB31 and IJB-A, demonstrating that UR2D outperforms existing 2D face recognition systems such as VGG-Face, FaceNet, and a commercial off-the-shelf software (COTS) by at least 9% on the UHDB31 dataset and 3% on the IJB-A dataset on average in face identification tasks.

Face Identification Face Recognition +2

Facial 3D Model Registration Under Occlusions With SensiblePoints-based Reinforced Hypothesis Refinement

no code implementations2 Sep 2017 Yuhang Wu, Ioannis A. Kakadiaris

The visual clues extracted from the fiducial points, non-fiducial points, and facial contour are jointly employed to verify the hypotheses.

Inferring Human Activities Using Robust Privileged Probabilistic Learning

no code implementations31 Aug 2017 Michalis Vrigkas, Evangelos Kazakos, Christophoros Nikou, Ioannis A. Kakadiaris

Classification models may often suffer from "structure imbalance" between training and testing data that may occur due to the deficient data collection process.

General Classification

Adaptive SVM+: Learning with Privileged Information for Domain Adaptation

no code implementations30 Aug 2017 Nikolaos Sarafianos, Michalis Vrigkas, Ioannis A. Kakadiaris

Incorporating additional knowledge in the learning process can be beneficial for several computer vision and machine learning tasks.

Domain Adaptation

Curriculum Learning for Multi-Task Classification of Visual Attributes

no code implementations29 Aug 2017 Nikolaos Sarafianos, Theodore Giannakopoulos, Christophoros Nikou, Ioannis A. Kakadiaris

Visual attributes, from simple objects (e. g., backpacks, hats) to soft-biometrics (e. g., gender, height, clothing) have proven to be a powerful representational approach for many applications such as image description and human identification.

Attribute Classification +2

End-to-end 3D face reconstruction with deep neural networks

no code implementations CVPR 2017 Pengfei Dou, Shishir K. Shah, Ioannis A. Kakadiaris

Inspired by the success of deep neural networks (DNN), we propose a DNN-based approach for End-to-End 3D FAce Reconstruction (UH-E2FAR) from a single 2D image.

3D Face Reconstruction

Predicting Privileged Information for Height Estimation

no code implementations9 Feb 2017 Nikolaos Sarafianos, Christophoros Nikou, Ioannis A. Kakadiaris

In this paper, we propose a novel regression-based method for employing privileged information to estimate the height using human metrology.

regression

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