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Retrieval Augmented Language Models (RALMs) have gained significant attention for their ability to generate accurate answer and improve efficiency. However, RALMs are inherently vulnerable to imperfect information due to their reliance on…

Computation and Language · Computer Science 2024-10-22 Seong-Il Park , Jay-Yoon Lee

In planning processes of computational decision-making agents, generative or predictive models are often used as "generators" to propose "targets" representing sets of expected or desirable states. Unfortunately, learned models inevitably…

Artificial Intelligence · Computer Science 2025-08-12 Mingde Zhao , Tristan Sylvain , Romain Laroche , Doina Precup , Yoshua Bengio

In communication systems, there are many tasks, like modulation recognition, which rely on Deep Neural Networks (DNNs) models. However, these models have been shown to be susceptible to adversarial perturbations, namely imperceptible…

Signal Processing · Electrical Eng. & Systems 2021-05-31 Javier Maroto , Gérôme Bovet , Pascal Frossard

The present study introduces the knowledge-augmented generator, which is specifically designed to produce information that remains grounded in contextual knowledge, regardless of alterations in the context. Previous research has…

Computation and Language · Computer Science 2024-02-23 Xinshuo Hu , Baotian Hu , Dongfang Li , Xiaoguang Li , Lifeng Shang

Generative language models hallucinate. That is, at times, they generate factually flawed responses. These inaccuracies are particularly insidious because the responses are fluent and well-articulated. We focus on the task of Grounded…

Computation and Language · Computer Science 2024-09-04 Hrishikesh Kulkarni , Nazli Goharian , Ophir Frieder , Sean MacAvaney

Multi-contrast MRI acquisitions of an anatomy enrich the magnitude of information available for diagnosis. Yet, excessive scan times associated with additional contrasts may be a limiting factor. Two mainstream approaches for enhanced scan…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Salman Ul Hassan Dar , Mahmut Yurt , Mohammad Shahdloo , Muhammed Emrullah Ildız , Tolga Çukur

Large language models (LLMs) are prone to hallucinations, which sparked a widespread effort to detect and prevent them. Recent work attempts to mitigate hallucinations by intervening in the model's generation, typically computing…

Computation and Language · Computer Science 2024-07-12 Adi Simhi , Jonathan Herzig , Idan Szpektor , Yonatan Belinkov

Missing scans are inevitable in longitudinal studies due to either subject dropouts or failed scans. In this paper, we propose a deep learning framework to predict missing scans from acquired scans, catering to longitudinal infant studies.…

Image and Video Processing · Electrical Eng. & Systems 2022-08-10 Yunzhi Huang , Sahar Ahmad , Luyi Han , Shuai Wang , Zhengwang Wu , Weili Lin , Gang Li , Li Wang , Pew-Thian Yap

As deep learning is showing unprecedented success in medical image analysis tasks, the lack of sufficient medical data is emerging as a critical problem. While recent attempts to solve the limited data problem using Generative Adversarial…

Image and Video Processing · Electrical Eng. & Systems 2019-08-08 Gihyun Kwon , Chihye Han , Dae-shik Kim

We propose and demonstrate the use of a model-assisted generative adversarial network (GAN) to produce fake images that accurately match true images through the variation of the parameters of the model that describes the features of the…

Computer Vision and Pattern Recognition · Computer Science 2020-03-13 Saúl Alonso-Monsalve , Leigh H. Whitehead

Neuroimaging data, particularly from techniques like MRI or PET, offer rich but complex information about brain structure and activity. To manage this complexity, latent representation models - such as Autoencoders, Generative Adversarial…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 C. Vázquez-García , F. J. Martínez-Murcia , F. Segovia Román , Juan M. Górriz

While deep learning is remarkably successful on perceptual tasks, it was also shown to be vulnerable to adversarial perturbations of the input. These perturbations denote noise added to the input that was generated specifically to fool the…

Machine Learning · Statistics 2017-08-02 Jan Hendrik Metzen , Mummadi Chaithanya Kumar , Thomas Brox , Volker Fischer

Magnetic resonance imaging (MRI) is an important medical imaging modality, but its acquisition speed is quite slow due to the physiological limitations. Recently, super-resolution methods have shown excellent performance in accelerating…

Image and Video Processing · Electrical Eng. & Systems 2021-07-22 Guangyuan Li , Jun Lv , Xiangrong Tong , Chengyan Wang , Guang Yang

Deep generative models have emerged as promising tools for detecting arbitrary anomalies in data, dispensing with the necessity for manual labelling. Recently, autoregressive transformers have achieved state-of-the-art performance for…

Recently, machine learning has been introduced in the inverse design of physical devices, i.e., the automatic generation of device geometries for a desired physical response. In particular, generative adversarial networks have been proposed…

Optics · Physics 2025-02-18 Timo Gahlmann , Philippe Tassin

This paper presents a novel approach for deep visualization via a generative network, offering an improvement over existing methods. Our model simplifies the architecture by reducing the number of networks used, requiring only a generator…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Athanasios Karagounis

A conditional Generative Adversarial Network allows for generating samples conditioned on certain external information. Being able to recover latent and conditional vectors from a condi- tional GAN can be potentially valuable in various…

Computer Vision and Pattern Recognition · Computer Science 2019-03-26 Sihao Ding , Andreas Wallin

Deep neural networks have been shown to be vulnerable to adversarial examples deliberately constructed to misclassify victim models. As most adversarial examples have restricted their perturbations to $L_{p}$-norm, existing defense methods…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Hanieh Naderi , Leili Goli , Shohreh Kasaei

Almost all adversarial attacks are formulated to add an imperceptible perturbation to an image in order to fool a model. Here, we consider the opposite which is adversarial examples that can fool a human but not a model. A large enough and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-26 Ali Borji

Generative Adversarial Networks (GANs) have become increasingly powerful, generating mind-blowing photorealistic images that mimic the content of datasets they were trained to replicate. One recurrent theme in medical imaging is whether…

Image and Video Processing · Electrical Eng. & Systems 2021-07-20 Youssef Skandarani , Pierre-Marc Jodoin , Alain Lalande