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Support estimation (SE) of a sparse signal refers to finding the location indices of the non-zero elements in a sparse representation. Most of the traditional approaches dealing with SE problem are iterative algorithms based on greedy…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Mehmet Yamac , Mete Ahishali , Serkan Kiranyaz , Moncef Gabbouj

Large language models (LLMs) enhanced with retrieval-augmented generation (RAG) have introduced a new paradigm for web search. However, the limited context awareness of LLMs degrades their performance on RAG tasks. Existing methods to…

Computation and Language · Computer Science 2024-10-08 Tao Tan , Yining Qian , Ang Lv , Hongzhan Lin , Songhao Wu , Yongbo Wang , Feng Wang , Jingtong Wu , Xin Lu , Rui Yan

Applying pseudo labeling techniques has been found to be advantageous in semi-supervised 3D object detection (SSOD) in Bird's-Eye-View (BEV) for autonomous driving, particularly where labeled data is limited. In the literature, Exponential…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Saheli Hazra , Sudip Das , Rohit Choudhary , Arindam Das , Ganesh Sistu , Ciaran Eising , Ujjwal Bhattacharya

Enterprises grapple with the significant challenge of managing proprietary unstructured data, hindering efficient information retrieval. This has led to the emergence of AI-driven information retrieval solutions, designed to adeptly extract…

We present MIX'EM, a novel solution for unsupervised image classification. MIX'EM generates representations that by themselves are sufficient to drive a general-purpose clustering algorithm to deliver high-quality classification. This is…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Ali Varamesh , Tinne Tuytelaars

Zero-shot instance segmentation aims to detect and precisely segment objects of unseen categories without any training samples. Since the model is trained on seen categories, there is a strong bias that the model tends to classify all the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Shuting He , Henghui Ding , Wei Jiang

The intrinsic difficulty in adapting deep learning models to non-stationary environments limits the applicability of neural networks to real-world tasks. This issue is critical in practical supervised learning settings, such as the ones in…

Machine Learning · Computer Science 2023-06-09 Simone Marullo , Matteo Tiezzi , Marco Gori , Stefano Melacci , Tinne Tuytelaars

Integrating large language models (LLMs) as priors in reinforcement learning (RL) offers significant advantages but comes with substantial computational costs. We present a principled cache-efficient framework for posterior sampling with…

Machine Learning · Computer Science 2025-09-30 Ibne Farabi Shihab , Sanjeda Akter , Anuj Sharma

Zero-shot inference is a powerful paradigm that enables the use of large pretrained models for downstream classification tasks without further training. However, these models are vulnerable to inherited biases that can impact their…

Machine Learning · Computer Science 2024-02-13 Dyah Adila , Changho Shin , Linrong Cai , Frederic Sala

For the purposes of foreground estimation, the true background model is unavailable in many practical circumstances and needs to be estimated from cluttered image sequences. We propose a sequential technique for static background estimation…

Computer Vision and Pattern Recognition · Computer Science 2013-03-12 Vikas Reddy , Conrad Sanderson , Brian C. Lovell

Recent studies introduce conditional memory modules that decouple knowledge storage from neural computation, enabling more direct knowledge access. Compared to MoE, which relies on dynamic computation paths, explicit lookup provides a more…

Artificial Intelligence · Computer Science 2026-05-19 Yuwen Qu , Wenhui Dong , Chenyang Si , Caifeng Shan

Neural networks often learn spurious correlations when exposed to biased training data, leading to poor performance on out-of-distribution data. A biased dataset can be divided, according to biased features, into bias-aligned samples (i.e.,…

Machine Learning · Computer Science 2023-08-17 Rui Hu , Yahan Tu , Jitao Sang

Detecting anomalies in industrial settings is challenging due to the scarcity of labeled anomalous data. Generative models can mitigate this issue by synthesizing realistic defect samples, but existing approaches often fail to model the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Youngjae Cho , Gwangyeol Kim , Sirojbek Safarov , Seongdeok Bang , Jaewoo Park

Training visual embeddings with labeled data supervision has been the de facto setup for representation learning in computer vision. Inspired by recent success of adopting masked image modeling (MIM) in self-supervised representation…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Kaifeng Chen , Daniel Salz , Huiwen Chang , Kihyuk Sohn , Dilip Krishnan , Mojtaba Seyedhosseini

Pre-trained language models (PLM) are effective components of few-shot named entity recognition (NER) approaches when augmented with continued pre-training on task-specific out-of-domain data or fine-tuning on in-domain data. However, their…

Computation and Language · Computer Science 2022-04-12 Yuxuan Chen , Jonas Mikkelsen , Arne Binder , Christoph Alt , Leonhard Hennig

Accurate and fast extraction of foreground object is a key prerequisite for a wide range of computer vision applications such as object tracking and recognition. Thus, enormous background subtraction methods for foreground object detection…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Dongdong Zeng , Ming Zhu , Arjan Kuijper

Our work addresses the problem of learning to localize objects in an open-world setting, i.e., given the bounding box information of a limited number of object classes during training, the goal is to localize all objects, belonging to both…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Ashish Singh , Michael J. Jones , Kuan-Chuan Peng , Anoop Cherian , Moitreya Chatterjee , Erik Learned-Miller

The boundary element method (BEM) enables the efficient electromagnetic modelling of lossy conductors with a surface-based discretization. Existing BEM techniques for conductor modelling require either expensive dual basis functions or the…

Computational Physics · Physics 2020-12-29 Shashwat Sharma , Piero Triverio

The rapid progress of generative models has intensified the need for reliable and robust detection under real-world conditions. However, existing detectors often overfit to generator-specific artifacts and remain highly sensitive to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Ruiqi Liu , Yi Han , Zhengbo Zhang , Liwei Yao , Zhiyuan Yan , Jialiang Shen , ZhiJin Chen , Boyi Sun , Lubin Weng , Jing Dong , Yan Wang , Shu Wu

Low-light image enhancement remains a challenging problem due to severe noise, color distortion, contrast degradation, and loss of structural details under insufficient illumination. Existing methods typically apply uniform enhancement…

Image and Video Processing · Electrical Eng. & Systems 2026-05-19 Bibhabasu Debnath , Sahana Ray , Sanjay Ghosh