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The explosive demand of on-line video from smart mobile devices poses unprecedented challenges to delivering high quality of experience (QoE) over wireless networks. Streaming high-definition video with low delay is difficult mainly due to…

多媒体 · 计算机科学 2016-05-12 Kairan Sun , Huazi Zhang , Dapeng Wu

It is challenging to bridge the performance gap between Binary CNN (BCNN) and Floating point CNN (FCNN). We observe that, this performance gap leads to substantial residuals between intermediate feature maps of BCNN and FCNN. To minimize…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Jianming Ye , Shiliang Zhang , Jingdong Wang

In large scale distributed computing systems, communication overhead is one of the major bottlenecks. In the map-shuffle-reduce framework, which is one of the major distributed computing frameworks, the communication load among servers can…

信息论 · 计算机科学 2020-05-14 Shunsuke Horii

Online-learning literature has focused on designing algorithms that ensure sub-linear growth of the cumulative long-term constraint violations. The drawback of this guarantee is that strictly feasible actions may cancel out constraint…

最优化与控制 · 数学 2019-10-22 Ezra Tampubolon , Holger Boche

In this paper, we study the performance of finite-length LDPC codes in the waterfall region. We propose an algorithm to predict the error performance of finite-length LDPC codes over various binary memoryless channels. Through numerical…

信息论 · 计算机科学 2013-09-30 Md. Noor-A-Rahim , Khoa D. Nguyen , Gottfried Lechner

We address the use of linear randon fountain codes caching schemes in a heterogeneous satellite network. We consider a system composed of multiple hubs and a geostationary Earth orbit satellite. Coded content is memorized in hubs' caches in…

信息论 · 计算机科学 2018-07-17 Estefania Recayte , Francisco Lázaro , Gianluigi Liva

This paper extends linear-complexity concatenated coding schemes to fountain communication over the discrete-time memoryless channel. Achievable fountain error exponents for one-level and multi-level concatenated fountain codes are derived.…

信息论 · 计算机科学 2011-06-13 Zheng Wang , Jie Luo

Video compression relies heavily on exploiting the temporal redundancy between video frames, which is usually achieved by estimating and using the motion information. The motion information is represented as optical flows in most of the…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Chuanbo Tang , Xihua Sheng , Zhuoyuan Li , Haotian Zhang , Li Li , Dong Liu

Growth codes are a subclass of Rateless codes that have found interesting applications in data dissemination problems. Compared to other Rateless and conventional channel codes, Growth codes show improved intermediate performance which is…

信息论 · 计算机科学 2012-11-19 Nikolaos Thomos , Rethnakaran Pulikkoonattu , Pascal Frossard

In this paper we investigate the performance of caching schemes based on fountain codes in a heterogeneous satellite network. We consider multiple cache-aided hubs which are connected to a geostationary satellite through backhaul links.…

信息论 · 计算机科学 2021-01-05 Estefanía Recayte , Francisco Lázaro , Gianluigi Liva

An important challenge in the online convex optimization (OCO) setting is to incorporate generalized inequalities and time-varying constraints. The inclusion of constraints in OCO widens the applicability of such algorithms to dynamic and…

最优化与控制 · 数学 2024-06-03 Jean-Luc Lupien , Iman Shames , Antoine Lesage-Landry

Due to its time-varying nature, oscillator phase noise can significantly degrade the performance of channel estimation, carrier recovery, and data detection blocks in high-speed wireless communication systems. In this paper, we analyze…

信息论 · 计算机科学 2013-10-01 Rui Wang , Hani Mehrpouyan , Meixia Tao , Yingbo Hua

In this paper, we consider the relaying of orthogonal space time block codes (OSTBCs) in a two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay system with estimated channel state information (CSI). A simple four…

信息论 · 计算机科学 2014-07-07 Arti M. K. , Manav R. Bhatnagar

We study fountain codes transmitted over the binary-input symmetric-output channel. For channels with small capacity, receivers needs to collects many channel outputs to recover information bits. Since a collected channel output yields a…

信息论 · 计算机科学 2010-07-13 Kenta Kasai , Kohichi Sakaniwa

The primary goal of Optimal Power Flow (OPF) is to optimize the operation of a power system while meeting the demand and adhering to operational constraints. This paper presents a new approach for AC OPF. First, the approach constructs a…

最优化与控制 · 数学 2025-12-16 Mohammed N. Khamees , Kai Sun

This paper introduces for the first time a framework to obtain provable worst-case guarantees for neural network performance, using learning for optimal power flow (OPF) problems as a guiding example. Neural networks have the potential to…

人工智能 · 计算机科学 2020-06-22 Andreas Venzke , Guannan Qu , Steven Low , Spyros Chatzivasileiadis

Machine learning assisted optimal power flow (OPF) aims to reduce the computational complexity of these non-linear and non-convex constrained optimization problems by consigning expensive (online) optimization to offline training. The…

机器学习 · 计算机科学 2022-04-28 Thomas Falconer , Letif Mones

Network Coding (NC) shows great potential in various communication scenarios through changing the packet forwarding principles of current networks. It can improve not only throughput, latency, reliability and security but also alleviates…

网络与互联网体系结构 · 计算机科学 2016-01-14 Dávid Szabó , Attila Csoma , Péter Megyesi , András Gulyás , Frank H. P. Fitzek

Staircase codes, a new class of forward-error-correction (FEC) codes suitable for high-speed optical communications, are introduced. An ITU-T G.709-compatible staircase code with rate R=239/255 is proposed, and FPGA-based simulation results…

信息论 · 计算机科学 2015-06-03 Benjamin P. Smith , Arash Farhood , Andrew Hunt , Frank R. Kschischang , John Lodge

Convolutional neural networks were recently employed to fully reconstruct fluid simulation data from a set of reduced parameters. However, since (de-)convolutions traditionally trained with supervised L1-loss functions do not discriminate…

机器学习 · 计算机科学 2020-05-29 Simon Biland , Vinicius C. Azevedo , Byungsoo Kim , Barbara Solenthaler