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The training of deep neural networks (DNNs) always requires intensive resources for both computation and data storage. Thus, DNNs cannot be efficiently applied to mobile phones and embedded devices, which severely limits their applicability…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Qigong Sun , Xiufang Li , Fanhua Shang , Hongying Liu , Kang Yang , Licheng Jiao , Zhouchen Lin

We investigate the limits of communication over the discrete-time Additive White Gaussian Noise (AWGN) channel, when the channel output is quantized using a small number of bits. We first provide a proof of our recent conjecture on the…

信息论 · 计算机科学 2008-05-15 Jaspreet Singh , Onkar Dabeer , Upamanyu Madhow

We consider the problem of error control in a coded, multicast network, focusing on the scenario where the errors can occur only on a proper subset of the network edges. We model this problem via an adversarial noise, presenting a formal…

信息论 · 计算机科学 2022-05-31 Allison Beemer , Altan Berdan Kilic , Alberto Ravagnani

Obtaining strong linear relaxations of capacitated covering problems constitute a major technical challenge even for simple settings. For one of the most basic cases, the Knapsack-Cover (Min-Knapsack) problem, the relaxation based on…

数据结构与算法 · 计算机科学 2019-12-30 Andrés Fielbaum , Ignacio Morales , José Verschae

We give the first outlier-robust efficient algorithm for clustering a mixture of $k$ statistically separated d-dimensional Gaussians (k-GMMs). Concretely, our algorithm takes input an $\epsilon$-corrupted sample from a $k$-GMM and whp in…

数据结构与算法 · 计算机科学 2020-12-15 Ainesh Bakshi , Pravesh Kothari

This paper proposes a novel low complexity joint bit and power suboptimal allocation algorithm for multicarrier systems operating in fading environments. The algorithm jointly maximizes the throughput and minimizes the transmitted power,…

信号处理 · 电气工程与系统科学 2019-02-13 Ebrahim Bedeer , Octavia A. Dobre , Mohamed H. Ahmed , Kareem E. Baddour

Embedding methods such as word embedding have become pillars for many applications containing discrete structures. Conventional embedding methods directly associate each symbol with a continuous embedding vector, which is equivalent to…

机器学习 · 计算机科学 2017-12-12 Ting Chen , Martin Renqiang Min , Yizhou Sun

We demonstrate, for a widely used model of channels with polarization dependent loss (PDL), that channel capacity is achieved by a simple interference cancellation scheme in conjunction with a universal precoder. Crucially, the proposed…

信息论 · 计算机科学 2023-03-22 Mohannad Shehadeh , Frank R. Kschischang

The $k$-Facility Location problem is a generalization of the classical problems $k$-Median and Facility Location. The goal is to select a subset of at most $k$ facilities that minimizes the total cost of opened facilities and established…

数据结构与算法 · 计算机科学 2017-04-25 Jarosław Byrka , Krzysztof Fleszar , Bartosz Rybicki , Joachim Spoerhase

Coded caching technique is an efficient approach to reduce the transmission load in networks and has been studied in heterogeneous network settings in recent years. In this paper, we consider a new widespread caching system called…

信息论 · 计算机科学 2022-12-29 Minquan Cheng , Jinwei Xu , Mingming Zhang , Youlong Wu

In this paper, we design a framework to obtain efficient algorithms for several problems with a global constraint (acyclicity or connectivity) such as Connected Dominating Set, Node Weighted Steiner Tree, Maximum Induced Tree, Longest…

数据结构与算法 · 计算机科学 2023-10-10 Benjamin Bergougnoux , Mamadou Moustapha Kanté

We present a family of additive quantum error-correcting codes whose capacities exceeds that of quantum random coding (hashing) for very noisy channels. These codes provide non-zero capacity in a depolarizing channel for fidelity parameters…

量子物理 · 物理学 2009-10-30 David P. DiVincenzo , Peter W. Shor , John A. Smolin

This paper analyzes to what extent it is possible to efficiently reduce the number of clauses in NP-hard satisfiability problems, without changing the answer. Upper and lower bounds are established using the concept of kernelization.…

计算复杂性 · 计算机科学 2019-07-01 Bart M. P. Jansen , Astrid Pieterse

We study coresets for clustering with capacity and fairness constraints. Our main result is a near-linear time algorithm to construct $\tilde{O}(k^2\varepsilon^{-2z-2})$-sized $\varepsilon$-coresets for capacitated $(k,z)$-clustering which…

数据结构与算法 · 计算机科学 2023-07-17 Lingxiao Huang , Pinyan Lu , Xuan Wu

We consider the classic Facility Location, $k$-Median, and $k$-Means problems in metric spaces of doubling dimension $d$. We give nearly linear-time approximation schemes for each problem. The complexity of our algorithms is…

数据结构与算法 · 计算机科学 2020-05-21 Vincent Cohen-Addad , Andreas Emil Feldmann , David Saulpic

In this paper, we consider quantized decoding of LDPC codes on the binary symmetric channel. The binary message passing algorithms, while allowing extremely fast hardware implementation, are not very attractive from the perspective of…

信息论 · 计算机科学 2016-11-17 Lucile Sassatelli , Shashi Kiran Chilappagari , Bane Vasic , David Declercq

We consider the classical coded caching problem as defined by Maddah-Ali and Niesen, where a server with a library of $N$ files of equal size is connected to $K$ users via a shared error-free link. Each user is equipped with a cache with…

信息论 · 计算机科学 2018-07-10 Sian Jin , Ying Cui , Hui Liu , Giuseppe Caire

We study the classical metric $k$-median clustering problem over a set of input rankings (i.e., permutations), which has myriad applications, from social-choice theory to web search and databases. A folklore algorithm provides a…

数据结构与算法 · 计算机科学 2026-02-23 Diptarka Chakraborty , Debarati Das , Robert Krauthgamer

We present several novel encodings for cardinality constraints, which use fewer clauses than previous encodings and, more importantly, introduce new generally applicable techniques for constructing compact encodings. First, we present a CNF…

计算复杂性 · 计算机科学 2026-04-20 Andrew Krapivin , Benjamin Przybocki , Bernardo Subercaseaux

The paper introduces a new technique for compressing Binary Decision Diagrams in those cases where random access is not required. Using this technique, compression and decompression can be done in linear time in the size of the BDD and…

人工智能 · 计算机科学 2008-12-18 Esben Rune Hansen , S. Srinivasa Rao , Peter Tiedemann