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Modern recommender systems struggle to effectively utilize the rich, yet high-dimensional and noisy, multi-modal features generated by Large Language Models (LLMs). Treating these features as static inputs decouples them from the core…

Information Retrieval · Computer Science 2025-12-02 Jiahao Tian , Zhenkai Wang

Implicit feedback, often used to build recommender systems, unavoidably confronts noise due to factors such as misclicks and position bias. Previous studies have attempted to alleviate this by identifying noisy samples based on their…

Information Retrieval · Computer Science 2024-09-17 Tianrui Song , Wenshuo Chao , Hao Liu

Though very popular, it is well known that the EM for GMM algorithm suffers from non-Gaussian distribution shapes, outliers and high-dimensionality. In this paper, we design a new robust clustering algorithm that can efficiently deal with…

Machine Learning · Statistics 2020-10-06 Violeta Roizman , Matthieu Jonckheere , Frédéric Pascal

Ultrasound images are widespread in medical diagnosis for muscle-skeletal, cardiac, and obstetrical diseases, due to the efficiency and non-invasiveness of the acquisition methodology. However, ultrasound acquisition introduces noise in the…

Image and Video Processing · Electrical Eng. & Systems 2025-06-24 Simone Cammarasana , Paolo Nicolardi , Giuseppe Patanè

Denoising language models (DLMs) have been proposed as a powerful alternative to traditional language models (LMs) for automatic speech recognition (ASR), motivated by their ability to use bidirectional context and adapt to a specific ASR…

Neural and Evolutionary Computing · Computer Science 2025-12-16 Dorian Koch , Albert Zeyer , Nick Rossenbach , Ralf Schlüter , Hermann Ney

We propose a novel deep network architecture for grayscale and color image denoising that is based on a non-local image model. Our motivation for the overall design of the proposed network stems from variational methods that exploit the…

Computer Vision and Pattern Recognition · Computer Science 2017-07-12 Stamatios Lefkimmiatis

Like in many other research fields, recent developments in computational imaging have focused on developing machine learning (ML) approaches to tackle its main challenges. To improve the performance of computational imaging algorithms,…

Image and Video Processing · Electrical Eng. & Systems 2024-08-16 Maximilian B. Kiss , Ander Biguri , Carola-Bibiane Schönlieb , K. Joost Batenburg , Felix Lucka

We conduct an asymptotic risk analysis of the nonlocal means image denoising algorithm for the Horizon class of images that are piecewise constant with a sharp edge discontinuity. We prove that the mean square risk of an optimally tuned…

Statistics Theory · Mathematics 2011-11-28 Arian Maleki , Manjari Narayan , Richard G. Baraniuk

This paper develops a new mathematical framework for denoising in blind two-dimensional (2D) super-resolution upon using the atomic norm. The framework denoises a signal that consists of a weighted sum of an unknown number of time-delayed…

Information Theory · Computer Science 2023-07-19 Mohamed A. Suliman , Wei Dai

Rigid image alignment is a fundamental task in computer vision, while the traditional algorithms are either too sensitive to noise or time-consuming. Recent unsupervised image alignment methods developed based on spatial transformer…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Yu-Xuan Chen , Dagan Feng , Hong-Bin Shen

Increased noise is a general concern for dual-energy material decomposition. Here, we develop an image-domain material decomposition algorithm for dual-energy CT (DECT) by incorporating an edge-preserving filter into the Local HighlY…

Medical Physics · Physics 2016-02-17 Wei Zhao , Tianye Niu , Lei Xing , Yaoqin Xie , Guanglei Xiong , Kimberly Elmore , Jun Zhu , Luyao Wang , James K. Min

Non-parametric neural language models (NLMs) learn predictive distributions of text utilizing an external datastore, which allows them to learn through explicitly memorizing the training datapoints. While effective, these models often…

Computation and Language · Computer Science 2021-11-16 Junxian He , Graham Neubig , Taylor Berg-Kirkpatrick

Extreme Learning Machines (ELMs) have become a popular tool in the field of Artificial Intelligence due to their very high training speed and generalization capabilities. Another advantage is that they have a single hyper-parameter that…

Machine Learning · Computer Science 2019-12-05 Nicolás Nieto , Francisco Ibarrola , Victoria Peterson , Hugo Rufiner , Ruben Spies

The growing field of nano nuclear magnetic resonance (nano-NMR) seeks to estimate spectra or discriminate between spectra of minuscule amounts of complex molecules. While this field holds great promise, nano-NMR experiments suffer from…

Quantum Physics · Physics 2019-12-02 Nati Aharon , Amit Rotem , Liam P. McGuinness , Fedor Jelezko , Alex Retzker , Zohar Ringel

Implicit feedback, employed in training recommender systems, unavoidably confronts noise due to factors such as misclicks and position bias. Previous studies have attempted to identify noisy samples through their diverged data patterns,…

Information Retrieval · Computer Science 2025-11-12 Tianrui Song , Wen-Shuo Chao , Hao Liu

Deep learning based methods hold state-of-the-art results in low-level image processing tasks, but remain difficult to interpret due to their black-box construction. Unrolled optimization networks present an interpretable alternative to…

Image and Video Processing · Electrical Eng. & Systems 2025-11-18 Nikola Janjušević , Amirhossein Khalilian-Gourtani , Yao Wang

Confocal microscopy is essential for histopathologic cell visualization and quantification. Despite its significant role in biology, fluorescence confocal microscopy suffers from the presence of inherent noise during image acquisition.…

Image and Video Processing · Electrical Eng. & Systems 2020-05-28 Saeed Izadi , Ghassan Hamarneh

We show that using nearest neighbours in the latent space of autoencoders (AE) significantly improves performance of semi-supervised novelty detection in both single and multi-class contexts. Autoencoding methods detect novelty by learning…

Machine Learning · Computer Science 2022-10-12 Michael Mesarcik , Elena Ranguelova , Albert-Jan Boonstra , Rob V. van Nieuwpoort

In machine learning approach to image denoising a network is trained to recover a clean image from a noisy one. In this paper a novel structure is proposed based on training multiple specialized networks as opposed to existing structures…

Image and Video Processing · Electrical Eng. & Systems 2020-12-01 Seyed Mohsen Hosseini

Deep neural networks (DNNs) with noisy weights, which we refer to as noisy neural networks (NoisyNNs), arise from the training and inference of DNNs in the presence of noise. NoisyNNs emerge in many new applications, including the wireless…

Machine Learning · Computer Science 2023-07-26 Yulin Shao , Soung Chang Liew , Deniz Gunduz