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Watermarking LLM-generated text is critical for content attribution and misinformation prevention. However, existing methods compromise text quality, require white-box model access and logit manipulation. These limitations exclude API-based…

Computation and Language · Computer Science 2026-01-13 Zhuohao Yu , Xingru Jiang , Weizheng Gu , Yidong Wang , Qingsong Wen , Shikun Zhang , Wei Ye

In semantic segmentation, training data down-sampling is commonly performed due to limited resources, the need to adapt image size to the model input, or improve data augmentation. This down-sampling typically employs different strategies…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Roberto Alcover-Couso , Marcos Escudero-Vinolo , Juan C. SanMiguel , Jose M. Martinez

Semantic channel equalization has emerged as a solution to address language mismatch in multi-user semantic communications. This approach aims to align the latent spaces of an encoder and a decoder which were not jointly trained and it…

Machine Learning · Computer Science 2024-06-05 Tomás Hüttebräucker , Mohamed Sana , Emilio Calvanese Strinati

We propose a very low-complexity and high-performance algorithm for soft-demapping of multi-dimensional modulation formats. We assess its performance over the linear channel for four 8D formats, generated using binary arithmetics. This…

Information Theory · Computer Science 2019-04-30 Djalal F. Bendimerad , Huijian Zhang , Ingmar Land , Hartmut Hafermann

As consumer devices become increasingly intelligent and interconnected, efficient data transfer solutions for machine tasks have become essential. This paper presents an overview of the latest Feature Coding for Machines (FCM) standard,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Md Eimran Hossain Eimon , Juan Merlos , Ashan Perera , Hari Kalva , Velibor Adzic , Borko Furht

The problem of blind identification of channel codes at a receiver involves identifying a code chosen by a transmitter from a known code-family, by observing the transmitted codewords through the channel. Most existing approaches for…

Information Theory · Computer Science 2026-03-04 Pramod Singh , Prasad Krishnan , Arti Yardi

Next generation wireless systems will need higher spectral efficiency as the expected traffic volumes per unit bandwidth and dimension will inevitably grow. As a consequence, it is necessary to design coding schemes with performances close…

Information Theory · Computer Science 2017-05-10 Guido Montorsi , Farbod Kayhan

Hybrid beamforming (HB) has been widely studied for reducing the number of costly radio frequency (RF) chains in massive multiple-input multiple-output (MIMO) systems. However, previous works on HB are limited to a single user equipment…

Information Theory · Computer Science 2016-11-03 Dengkui Zhu , Boyu Li , Ping Liang

As a power and bandwidth efficient modulation scheme, the optical spatial modulation (SM) technique has recently drawn increased attention in the field of visible light communications (VLC). To guarantee the number of bits mapped by the…

Information Theory · Computer Science 2018-07-27 Jin-Yuan Wang , Hong Ge , Jian-Xia Zhu , Jun-Bo Wang , Jianxin Dai , Min Lin

Soft-decision decoding is NP-hard problem of great interest to developers of communication system. We present an efficient soft-decision decoding of linear block codes based on compact genetic algorithm (cGA) and compare its performance…

Information Theory · Computer Science 2012-11-26 Ahmed Azouaoui , Ahlam Berkani , Mostafa Belkasmi

We introduce and analyze a discrete soft-decision channel called the linear reliability channel (LRC) in which the soft information is the rank ordering of the received symbol reliabilities. We prove that the LRC is an appropriate…

Information Theory · Computer Science 2025-09-11 Alexander Mariona , Ken R. Duffy , Muriel Médard

We study few-shot semantic segmentation that aims to segment a target object from a query image when provided with a few annotated support images of the target class. Several recent methods resort to a feature masking (FM) technique to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Seonghyeon Moon , Samuel S. Sohn , Honglu Zhou , Sejong Yoon , Vladimir Pavlovic , Muhammad Haris Khan , Mubbasir Kapadia

The typical model for measurement noise in quantum error correction is to randomly flip the binary measurement outcome. In experiments, measurements yield much richer information - e.g., continuous current values, discrete photon counts -…

Cryptographic check values (digital signatures, MACs and H-MACs) are useful only if they are free of errors. For that reason all of errors in cryptographic check values should be corrected after the transmission over a noisy channel before…

Cryptography and Security · Computer Science 2010-07-15 Natasa Zivic

Although numerous solutions have been proposed for image super-resolution, they are usually incompatible with low-power devices with many computational and memory constraints. In this paper, we address this problem by proposing a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Long Sun , Jiangxin Dong , Jinhui Tang , Jinshan Pan

With the rapid growth of image and video data on the web, hashing has been extensively studied for image or video search in recent years. Benefit from recent advances in deep learning, deep hashing methods have achieved promising results…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Qi Li , Zhenan Sun , Ran He , Tieniu Tan

Underwater image enhancement has become an attractive topic as a significant technology in marine engineering and aquatic robotics. However, the limited number of datasets and imperfect hand-crafted ground truth weaken its robustness to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Di Wang , Long Ma , Risheng Liu , Xin Fan

Several SLAM methods benefit from the use of semantic information. Most integrate photometric methods with high-level semantics such as object detection and semantic segmentation. We propose that adding a semantic segmentation decoder in a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Gabriel S. Gama , Nícolas S. Rosa , Valdir Grassi

The security of patient information is important during the transfer of medical data. A hybrid spatial domain watermarking algorithm that includes encryption, integrity protection and steganography is proposed to strengthen the information…

Cryptography and Security · Computer Science 2021-10-20 Ahmad Nagm , Mohammed Safy Elwan

The recently proposed soft finite element method (SoftFEM) reduces the stiffness (condition numbers), consequently improving the overall approximation accuracy. The method subtracts a least-square term that penalizes the gradient jumps…

Numerical Analysis · Mathematics 2024-02-27 Jipei Chen , Victor M. Calo , Quanling Deng