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We consider transmission of discrete memoryless sources (DMSes) across discrete memoryless channels (DMCs) using variable-length lossy source-channel codes with feedback. The reliability function (optimum error exponent) is shown to be…

信息论 · 计算机科学 2019-04-09 Lan V. Truong , Vincent Y. F. Tan

We propose and analyse a model predictive control (MPC) strategy tailored for networks of underwater agents tasked with maintaining formation while following a shared path and using acoustic communication channels. The strategy accommodates…

最优化与控制 · 数学 2024-10-22 Emil Wengle , Damiano Varagnolo

Communication systems are usually designed by assuming perfect channel state information (CSI). However, in many practical scenarios, only a noisy estimate of the channel is available, which may strongly differ from the true channel. This…

信息论 · 计算机科学 2009-06-10 Pablo Piantanida , Gerald Matz , Pierre Duhamel

Traditional equivalent circuit models (ECMs) have difficulties in estimating battery internal states due to the lack of relevant physics, such as the lithium diffusion in active particles. Here we configure a circuit network to describe the…

材料科学 · 物理学 2023-04-04 Mingzhao Zhuo , Niall Kirkaldy , Tom Maull , Timothy Engstrom , Gregory Offer , Monica Marinescu

Processing-in-memory (PIM) based on emerging devices such as memristors is more vulnerable to noise than traditional memories, due to the physical non-idealities and complex operations in analog domains. To ensure high reliability,…

硬件体系结构 · 计算机科学 2025-02-18 Daijing Shi , Yihang Zhu , Anjunyi Fan , Yaoyu Tao , Yuchao Yang , Bonan Yan

The emergence of resistive non-volatile memories opens the way to highly energy-efficient computation near- or in-memory. However, this type of computation is not compatible with conventional ECC, and has to deal with device unreliability.…

We describe verification techniques for embedded memory systems using efficient memory modeling (EMM), without explicitly modeling each memory bit. We extend our previously proposed approach of EMM in Bounded Model Checking (BMC) for a…

计算机科学中的逻辑 · 计算机科学 2011-11-09 Malay K. Ganai , Aarti Gupta , Pranav Ashar

Objective. Many electroencephalogram (EEG)-based brain-computer interface (BCI) systems use a large amount of channels for higher performance, which is time-consuming to set up and inconvenient for practical applications. Finding an optimal…

信号处理 · 电气工程与系统科学 2021-03-04 Jianli Yu , Zhuliang Yu

Classically, communication systems are designed assuming perfect channel state information at the receiver and/or transmitter. However, in many practical situations, only an estimate of the channel is available that differs from the true…

信息论 · 计算机科学 2007-07-13 Pablo Piantanida , Gerald Matz , Pierre Duhamel

In this paper, we study a model, which was first presented by Bunte and Lapidoth, that mimics the programming operation of memory cells. Under this paradigm we assume that cells are programmed sequentially and individually. The programming…

信息论 · 计算机科学 2019-01-11 Michal Horovitz , Eitan Yaakobi , Eyal En Gad , Jehoshua Bruck

Large pretrained self-attention neural networks, or transformers, have been very successful in various tasks recently. The performance of a model on a given task depends on its ability to memorize and generalize the training data. Large…

机器学习 · 计算机科学 2024-08-01 Aki Härmä , Marcin Pietrasik , Anna Wilbik

Stencil algorithms on regular lattices appear in many fields of computational science, and much effort has been put into optimized implementations. Such activities are usually not guided by performance models that provide estimates of…

性能 · 计算机科学 2016-01-28 Holger Stengel , Jan Treibig , Georg Hager , Gerhard Wellein

In this work we develop a simple equivalent circuit model (ECM) that predicts the spectral response of a lumped-element loaded single patterned layer reflective metasurface. The proposed ECM maintains accuracy across varying design…

Multi-cell cooperation (MCC) is an approach for mitigating inter-cell interference in dense cellular networks. Existing studies on MCC performance typically rely on either over-simplified Wyner-type models or complex system-level…

信息论 · 计算机科学 2012-12-07 Kaibin Huang , Jeffrey G. Andrews

We study the scaling behavior of coupled sparse graph codes over the binary erasure channel. In particular, let 2L+1 be the length of the coupled chain, let M be the number of variables in each of the 2L + 1 local copies, let l be the…

信息论 · 计算机科学 2011-07-13 Pablo M. Olmos , Rüdiger Urbanke

We propose efficient coding schemes for two communication settings: 1. asymmetric channels, and 2. channels with an informed encoder. These settings are important in non-volatile memories, as well as optical and broadcast communication. The…

信息论 · 计算机科学 2015-12-31 Eyal En Gad , Yue Li , Joerg Kliewer , Michael Langberg , Anxiao Jiang , Jehoshua Bruck

LLM development involves pre-training a foundation model on massive data, followed by fine-tuning on task-specific data to create specialized experts. Serving these experts can pose significant memory challenges, as loading all experts onto…

计算与语言 · 计算机科学 2024-10-29 Jing Liu , Ruihao Gong , Mingyang Zhang , Yefei He , Jianfei Cai , Bohan Zhuang

By transferring knowledge learned from seen/previous tasks, meta learning aims to generalize well to unseen/future tasks. Existing meta-learning approaches have shown promising empirical performance on various multiclass classification…

机器学习 · 计算机科学 2020-12-04 Jiechao Guan , Zhiwu Lu , Tao Xiang , Timothy Hospedales

We consider the problem of modulation and estimation of a random parameter $U$ to be conveyed across a discrete memoryless channel. Upper and lower bounds are derived for the best achievable exponential decay rate of a general moment of the…

信息论 · 计算机科学 2016-11-17 Neri Merhav

Spin Transfer Torque MRAMs are attractive due to their non-volatility, high density and zero leakage. However, STT-MRAMs suffer from poor reliability due to shared read and write paths. Additionally, conflicting requirements for data…

其他计算机科学 · 计算机科学 2016-06-20 Zoha Pajouhi , Xuanyao Fong , Anand Raghunathan , Kaushik Roy