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Recent advancements in generative artificial intelligence have introduced groundbreaking approaches to innovating next-generation semantic communication, which prioritizes conveying the meaning of a message rather than merely transmitting…

人工智能 · 计算机科学 2025-05-19 Achintha Wijesinghe , Weiwei Wang , Suchinthaka Wanninayaka , Songyang Zhang , Zhi Ding

In a diffusion-based molecular communication network, transmitters and receivers communicate by using signalling molecules (or ligands) in a fluid medium. This paper assumes that the transmitter uses different chemical reactions to generate…

信息论 · 计算机科学 2019-04-25 Chun Tung Chou

The posterior matching scheme, for feedback encoding of a message point lying on the unit interval over memoryless channels, maximizes mutual information for an arbitrary number of channel uses. However, it in general does not always…

信息论 · 计算机科学 2019-01-10 Diego A. Mesa , Rui Ma , Siva K. Gorantla , Todd P. Coleman

Most algorithms for decentralized learning employ a consensus or diffusion mechanism to drive agents to a common solution of a global optimization problem. Generally this takes the form of linear averaging, at a rate of contraction…

最优化与控制 · 数学 2024-06-07 Aaron Fainman , Stefan Vlaski

Neural machine translation (NMT) models generally adopt an encoder-decoder architecture for modeling the entire translation process. The encoder summarizes the representation of input sentence from scratch, which is potentially a problem if…

计算与语言 · 计算机科学 2018-12-27 Xinwei Geng , Longyue Wang , Xing Wang , Bing Qin , Ting Liu , Zhaopeng Tu

Information-theoretic arguments focus on modeling the reliability of information transmission, assuming availability of infinite data at sources, thus ignoring randomness in message generation times at the respective sources. However, in…

网络与互联网体系结构 · 计算机科学 2009-09-29 K. C. V. Kalyanarama Sesha Sayee

We study the following semi-deterministic setting of the joint source-channel coding problem: a deterministic source sequence (a.k.a. individual sequence) is transmitted via a memoryless channel, using delay-limited encoder and decoder,…

信息论 · 计算机科学 2021-09-29 Neri Merhav

We study the distributed optimization of transmit strategies in a multiple-input, single-output (MISO) interference channel (IFC). Existing distributed algorithms rely on stricly synchronized update steps by the individual users. They…

信息论 · 计算机科学 2015-06-19 Stefan Wesemann , Gerhard Fettweis

We design iterative receiver schemes for a generic wireless communication system by treating channel estimation and information decoding as an inference problem in graphical models. We introduce a recently proposed inference framework that…

We consider a communication system in which the destination receives status updates from an information source that observes a physical process. The transmitter performs semantics-empowered filtering as a means to send only the most…

信息论 · 计算机科学 2022-04-05 Pouya Agheli , Nikolaos Pappas , Marios Kountouris

We consider the problem of resource allocation and control of multihop networks in which multiple source-destination pairs communicate confidential messages, to be kept confidential from the intermediate nodes. We pose the problem as that…

信息论 · 计算机科学 2015-09-15 Yunus Sarikaya , C. Emre Koksal , Ozgur Ercetin

Our understanding of information in systems has been based on the foundation of memoryless processes. Extensions to stable Markov and auto-regressive processes are classical. Berger proved a source coding theorem for the marginally unstable…

信息论 · 计算机科学 2007-12-06 Anant Sahai , Sanjoy Mitter

A crucial challenge in decentralized systems is state estimation in the presence of unknown inputs, particularly within heterogeneous sensor networks with dynamic topologies. While numerous consensus algorithms have been introduced, they…

系统与控制 · 电气工程与系统科学 2024-12-13 Zida Wu , Ankur Mehta

Semantic communication is a new paradigm that aims at providing more efficient communication for the next-generation wireless network. It focuses on transmitting extracted, meaningful information instead of the raw data. However, deep…

社会与信息网络 · 计算机科学 2025-01-09 Yang Li , Xinyu Zhou , Jun Zhao

In this paper, we consider the information-theoretic characterization of the set of achievable rates and distortions in a broad class of multiterminal communication scenarios with general continuous-valued sources and channels. A framework…

信息论 · 计算机科学 2022-02-24 Farhad Shirani , S. Sandeep Pradhan

We consider a decentralized optimization problem, in which $n$ nodes collaborate to optimize a global objective function using local communications only. While many decentralized algorithms focus on \emph{gossip} communications (pairwise…

最优化与控制 · 数学 2022-05-31 Hadrien Hendrikx

This paper considers a framework where data from correlated sources are transmitted with help of network coding in ad-hoc network topologies. The correlated data are encoded independently at sensors and network coding is employed in the…

网络与互联网体系结构 · 计算机科学 2015-03-19 Hyunggon Park , Nikolaos Thomos , Pascal Frossard

End-to-end task-oriented dialogue is challenging since knowledge bases are usually large, dynamic and hard to incorporate into a learning framework. We propose the global-to-local memory pointer (GLMP) networks to address this issue. In our…

计算与语言 · 计算机科学 2019-04-01 Chien-Sheng Wu , Richard Socher , Caiming Xiong

This study addresses an image-matching problem in challenging cases, such as large scene variations or textureless scenes. To gain robustness to such situations, most previous studies have attempted to encode the global contexts of a scene…

计算机视觉与模式识别 · 计算机科学 2023-06-30 Khang Truong Giang , Soohwan Song , Sungho Jo

We consider the `one-shot frame synchronization problem' where a decoder wants to locate a sync pattern at the output of a channel on the basis of sequential observations. We assume that the sync pattern of length N starts being emitted at…

信息论 · 计算机科学 2007-08-23 Venkat Chandar , Aslan Tchamkerten , Gregory Wornell