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Ghassan AlRegib

14 accepted papers

2022

Introspective Learning : A Two-Stage approach for Inference in Neural Networks

NeurIPS 2022accept

In this paper, we advocate for two stages in a neural network's decision making process. The first is the existing feed-forward inference framework where patterns in given data are sensed and associated with previously learned patterns. The second stage is a slower reflection stage where we ask the…

2022

OLIVES Dataset: Ophthalmic Labels for Investigating Visual Eye Semantics

NeurIPS 2022accept

Clinical diagnosis of the eye is performed over multifarious data modalities including scalar clinical labels, vectorized biomarkers, two-dimensional fundus images, and three-dimensional Optical Coherence Tomography (OCT) scans. Clinical practitioners use all available data modalities for diagnosing…

2020

Action Segmentation With Joint Self-Supervised Temporal Domain Adaptation

CVPR 2020poster

Despite the recent progress of fully-supervised action segmentation techniques, the performance is still not fully satisfactory. One main challenge is the problem of spatiotemporal variations (e.g. different people may perform the same activity in various ways). Therefore, we exploit unlabeled video…

Cited by 149PDFcodeScholar
2020

Backpropagated Gradient Representations for Anomaly Detection

ECCV 2020poster

Learning representations that clearly distinguish between normal and abnormal data is key to the success of anomaly detection. Most of existing anomaly detection algorithms use activation representations from forward propagation while not exploiting gradients from backpropagation to characterize dat…

2020

Learning to Generate Grounded Visual Captions without Localization Supervision

ECCV 2020poster

When automatically generating a sentence description for an image or video, it often remains unclear how well the generated caption is grounded, that is whether the model uses the correct image regions to output particular words, or if the model is hallucinating based on priors in the dataset and/or…

2019

Self-Monitoring Navigation Agent via Auxiliary Progress Estimation

ICLR 2019poster

The Vision-and-Language Navigation (VLN) task entails an agent following navigational instruction in photo-realistic unknown environments. This challenging task demands that the agent be aware of which instruction was completed, which instruction is needed next, which way to go, and its navigation p…

2019

Temporal Attentive Alignment for Large-Scale Video Domain Adaptation

ICCV 2019oral

Although various image-based domain adaptation (DA) techniques have been proposed in recent years, domain shift in videos is still not well-explored. Most previous works only evaluate performance on small-scale datasets which are saturated. Therefore, we first propose two large-scale video DA datase…

Cited by 243PDFcodeScholar
2019

The Regretful Agent: Heuristic-Aided Navigation Through Progress Estimation

CVPR 2019oral

As deep learning continues to make progress for challenging perception tasks, there is increased interest in combining vision, language, and decision-making. Specifically, the Vision and Language Navigation (VLN) task involves navigating to a goal purely from language instructions and visual informa…

Cited by 205PDFcodeScholar
2018

Attend and Interact: Higher-Order Object Interactions for Video Understanding

CVPR 2018poster

Human actions often involve complex interactions across several inter-related objects in the scene. However, existing approaches to fine-grained video understanding or visual relationship detection often rely on single object representation or pairwise object relationships. Furthermore, learning int…

2017

Phase Congruency for image understanding with applications in computational seismic interpretation

ICASSP 2017accepted

Phase Congruency (PC) can highlight small discontinuities in images with varying illumination and contrast using the congruency of phase in Fourier components. PC can not only detect the subtle variations in the image intensity but can also highlight the anomalous values to develop a deeper understa…

Cited by 0SourceScholar
2016

SalSi: A new seismic attribute for salt dome detection

ICASSP 2016accepted

In this paper, we propose a saliency-based attribute, SalSi, to detect salt dome bodies within seismic volumes. SalSi is based on the saliency theory and modeling of the human vision system (HVS). In this work, we aim to highlight the parts of the seismic volume that receive highest attention from t…

Cited by 0SourceScholar