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In this paper we study the adaptive prefix coding problem in cases where the size of the input alphabet is large. We present an online prefix coding algorithm that uses $O(\sigma^{1 / \lambda + \epsilon}) $ bits of space for any constants…

数据结构与算法 · 计算机科学 2008-11-24 Travis Gagie , Marek Karpinski , Yakov Nekrich

$\textbf{Graph Coarsening (GC)}$ is a prominent graph reduction technique that compresses large graphs to enable efficient learning and inference. However, existing GC methods generate only one coarsened graph per run and must recompute…

社会与信息网络 · 计算机科学 2025-05-23 Mohit Kataria , Shreyash Bhilwade , Sandeep Kumar , Jayadeva

Graph encoder embedding, a recent technique for graph data, offers speed and scalability in producing vertex-level representations from binary graphs. In this paper, we extend the applicability of this method to a general graph model, which…

机器学习 · 统计学 2024-10-24 Cencheng Shen

Data-parallel distributed training of deep neural networks (DNN) has gained very widespread adoption, but can still experience communication bottlenecks. To address this issue, entire families of compression mechanisms have been developed,…

机器学习 · 计算机科学 2023-06-12 Mohammadreza Alimohammadi , Ilia Markov , Elias Frantar , Dan Alistarh

Domain Adaptive Object Detection (DAOD) leverages a labeled domain to learn an object detector generalizing to a novel domain free of annotations. Recent advances align class-conditional distributions by narrowing down cross-domain…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Wuyang Li , Xinyu Liu , Yixuan Yuan

Graphs are ubiquitous data structures for representing interactions between entities. With an emphasis on the use of graphs to represent chemical molecules, we explore the task of learning to generate graphs that conform to a distribution…

机器学习 · 计算机科学 2019-03-08 Qi Liu , Miltiadis Allamanis , Marc Brockschmidt , Alexander L. Gaunt

Analysing Web graphs has applications in determining page ranks, fighting Web spam, detecting communities and mirror sites, and more. This study is however hampered by the necessity of storing a major part of huge graphs in the external…

数据结构与算法 · 计算机科学 2011-09-07 Szymon Grabowski , Wojciech Bieniecki

Many modern applications involve accessing and processing graphical data, i.e. data that is naturally indexed by graphs. Examples come from internet graphs, social networks, genomics and proteomics, and other sources. The typically large…

信息论 · 计算机科学 2023-01-18 Payam Delgosha , Venkat Anantharam

Hypergraph, with its powerful ability to capture higher-order relationships, has gained significant attention recently. Consequently, many hypergraph representation learning methods have emerged to model the complex relationships among…

社会与信息网络 · 计算机科学 2025-02-24 Tianyi Ma , Yiyue Qian , Shinan Zhang , Chuxu Zhang , Yanfang Ye

We are living in a world which is getting more and more interconnected and, as physiological effect, the interaction between the entities produces more and more information. This high throughput generation calls for techniques able to…

数据结构与算法 · 计算机科学 2018-12-17 Francesco Pelosin

Graph embedding algorithms are used to efficiently represent (encode) a graph in a low-dimensional continuous vector space that preserves the most important properties of the graph. One aspect that is often overlooked is whether the graph…

机器学习 · 计算机科学 2020-01-31 Zekarias T. Kefato , Nasrullah Sheikh , Alberto Montresor

We analyze the performance of a linear code used for a data compression of Slepian-Wolf type. In our framework, two correlated data are separately compressed into codewords employing Gallager-type codes and casted into a communication…

无序系统与神经网络 · 物理学 2007-05-23 Tatsuto Murayama

Graph is a useful data structure to model various real life aspects like email communications, co-authorship among researchers, interactions among chemical compounds, and so on. Supporting such real life interactions produce a knowledge…

数据结构与算法 · 计算机科学 2016-11-11 Kifayat Ullah Khan , Waqas Nawaz , Young-Koo Lee

In contrast to time series, graphical data is data indexed by the vertices and edges of a graph. Modern applications such as the internet, social networks, genomics and proteomics generate graphical data, often at large scale. The large…

信息论 · 计算机科学 2021-08-24 Payam Delgosha , Venkat Anantharam

Learning accurate numerical constants when developing algebraic models is a known challenge for evolutionary algorithms, such as Gene Expression Programming (GEP). This paper introduces the concept of adaptive symbols to the GEP framework…

A well-known fact in the field of lossless text compression is that high-order entropy is a weak model when the input contains long repetitions. Motivated by this, decades of research have generated myriads of so-called dictionary…

数据结构与算法 · 计算机科学 2020-12-17 Dominik Kempa , Nicola Prezza

One of the emerging techniques in node classification in heterogeneous graphs is to restrict message aggregation to pre-defined, semantically meaningful structures called metapaths. This work is the first attempt to incorporate attention…

机器学习 · 计算机科学 2024-12-31 Calder Katyal

With the development of deep learning techniques, the combination of deep learning with image compression has drawn lots of attention. Recently, learned image compression methods had exceeded their classical counterparts in terms of…

图像与视频处理 · 电气工程与系统科学 2022-08-03 Ze Cui , Jing Wang , Shangyin Gao , Bo Bai , Tiansheng Guo , Yihui Feng

Data compression has been widely applied in many data processing areas. Compression methods use variable-size codes with the shorter codes assigned to symbols or groups of symbols that appear in the data frequently. Fibonacci coding, as a…

性能 · 计算机科学 2007-12-19 R. Baca , V. Snasel , J. Platos , M. Kratky , E. El-Qawasmeh

In this paper, we compare various methods to compress a text using a neural model. We find that extracting tokens as latent variables significantly outperforms the state-of-the-art discrete latent variable models such as VQ-VAE.…

计算与语言 · 计算机科学 2019-01-28 Aran Komatsuzaki