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We propose a communication-efficient optimally structured gradient coding scheme to jointly address straggler resilience and communication efficiency in heterogeneous distributed learning. By establishing a unified framework that…

系统与控制 · 电气工程与系统科学 2026-05-18 Heekang Song , Wan Choi

Recent studies shows that the majority of existing deep steganalysis models have a large amount of redundancy, which leads to a huge waste of storage and computing resources. The existing model compression method cannot flexibly compress…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Shunquan Tan , Qiushi Li , Laiyuan Li , Bin Li , Jiwu Huang

Image steganalysis is a special binary classification problem that aims to classify natural cover images and suspected stego images which are the results of embedding very weak secret message signals into covers. How to effectively suppress…

多媒体 · 计算机科学 2019-12-16 Songtao Wu , Sheng-hua Zhong , Yan Liu , Mengyuan Liu

In this paper, a novel data-driven information hiding scheme called generative steganography by sampling (GSS) is proposed. Unlike in traditional modification-based steganography, in our method the stego image is directly sampled by a…

多媒体 · 计算机科学 2019-07-23 Zhuo Zhang , Jia Liu , Yan Ke , Yu Lei , Jun Li , Minqing Zhang , Xiaoyuan Yang

In this work, we investigate a typical scenario in code generation where a developer edits existing code in real time and requests a code assistant, e.g., a large language model, to re-predict the next token or next line on the fly.…

计算与语言 · 计算机科学 2025-03-05 Zhenyu He , Jun Zhang , Shengjie Luo , Jingjing Xu , Zhi Zhang , Di He

Steganography, the art of information hiding, has continually evolved across visual, auditory and linguistic domains, adapting to the ceaseless interplay between steganographic concealment and steganalytic revelation. This study seeks to…

机器人学 · 计算机科学 2025-01-09 Ching-Chun Chang , Yijie Lin , Isao Echizen

Many real-world problems are categorized as large-scale problems, and metaheuristic algorithms as an alternative method to solve large-scale problem; they need the evaluation of many candidate solutions to tackle them prior to their…

神经与进化计算 · 计算机科学 2020-09-14 Shahryar Rahnamayan , Seyed Jalaleddin Mousavirad

Hiding information in network traffic may lead to leakage of confidential information. In this paper we introduce a new steganographic system: the PadSteg (Padding Steganography). To authors' best knowledge it is the first information…

密码学与安全 · 计算机科学 2010-07-06 Bartosz Jankowski , Wojciech Mazurczyk , Krzysztof Szczypiorski

This paper addresses fundamental challenges in two-dimensional error correction by constructing optimal codes for \emph{criss-cross deletions}. We consider an $ n \times n $ array $\boldsymbol{X}$ over a $ q $-ary alphabet $\Sigma_q := \{0,…

信息论 · 计算机科学 2025-10-23 Yubo Sun , Gennian Ge

Most image-to-image translation models postulate that a unique correspondence exists between the semantic classes of the source and target domains. However, this assumption does not always hold in real-world scenarios due to divergent…

计算机视觉与模式识别 · 计算机科学 2024-04-01 Sidi Wu , Yizi Chen , Samuel Mermet , Lorenz Hurni , Konrad Schindler , Nicolas Gonthier , Loic Landrieu

Stereo matching is one of the widely used techniques for inferring depth from stereo images owing to its robustness and speed. It has become one of the major topics of research since it finds its applications in autonomous driving, robotic…

计算机视觉与模式识别 · 计算机科学 2021-09-22 Viny Saajan Victor , Peter Neigel

Recently perfectly secure steganographic systems have been described for a wide class of sources of covertexts. The speed of transmission of secret information for these stegosystems is proportional to the length of the covertext. In this…

计算复杂性 · 计算机科学 2009-01-27 Boris Ryabko , Daniil Ryabko

A classical method of constructing a linear code over $\gf(q)$ with a $t$-design is to use the incidence matrix of the $t$-design as a generator matrix over $\gf(q)$ of the code. This approach has been extensively investigated in the…

信息论 · 计算机科学 2015-03-24 Cunsheng Ding

The paper presents Multi-Level Steganography (MLS), which defines a new concept for hidden communication in telecommunication networks. In MLS, at least two steganographic methods are utilised simultaneously, in such a way that one method…

密码学与安全 · 计算机科学 2013-12-06 Wojciech Fraczek , Wojciech Mazurczyk , Krzysztof Szczypiorski

Steganography derives from the Greek word steganos, meaning covered or secret, and graphy (writing or drawing). Steganography is a technology where modern data compression, information theory, spread spectrum, and cryptography technologies…

多媒体 · 计算机科学 2014-01-23 C. P. Sumathi , T. Santanam , G. Umamaheswari

An index coding (IC) problem consisting of a server and multiple receivers with different side-information and demand sets can be equivalently represented using a fitting matrix. A scalar linear index code to a given IC problem is a matrix…

信息论 · 计算机科学 2017-04-04 Vamsi Krishna Gummadi , Ashok Choudhary , Prasad Krishnan

A steganographic method based on the chaotic fractional map and in the DCT domain is proposed. This method embeds a secret message in some high frequency coefficients of the image using a 128-bit private key and a chaotic fractional map…

多媒体 · 计算机科学 2019-08-30 A. Soria-Lorente , E. Pérez-Michel , E. Avila-Domenech

Generative steganography is the process of hiding secret messages in generated images instead of cover images. Existing studies on generative steganography use GAN or Flow models to obtain high hiding message capacity and anti-detection…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Daegyu Kim , Chaehun Shin , Jooyoung Choi , Dahuin Jung , Sungroh Yoon

We introduce a steganographic information hiding scheme based on structural properties of numerical semigroups arising from the Frobenius coin problem. Instead of encoding data through representable integers, the proposed protocol embeds…

组合数学 · 数学 2026-02-05 Jean-Christophe Pain

The typical approach to steganography is to compress the covert data in order to limit its size, which is reasonable in the context of a limited steganographic bandwidth. TranSteg (Trancoding Steganography) is a new IP telephony…

密码学与安全 · 计算机科学 2012-01-31 Artur Janicki , Wojciech Mazurczyk , Krzysztof Szczypiorski