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A Budgeted Markov Decision Process (BMDP) is an extension of a Markov Decision Process to critical applications requiring safety constraints. It relies on a notion of risk implemented in the shape of a cost signal constrained to lie below…

This paper investigates the soft covering lemma under both the relative entropy and the total variation distance as the measures of deviation. The exact order of the expected deviation of the random i.i.d. code for the soft covering problem…

信息论 · 计算机科学 2019-02-22 Mohammad Hossein Yassaee

We propose algorithms computing the semi-greedy Lempel-Ziv 78 (LZ78), the Lempel-Ziv Double (LZD), and the Lempel-Ziv-Miller-Wegman (LZMW) factorizations in linear time for integer alphabets. For LZD and LZMW, we additionally propose data…

数据结构与算法 · 计算机科学 2024-09-24 Dominik Köppl

The Earth Mover's Distance (EMD) is a state-of-the art metric for comparing discrete probability distributions, but its high distinguishability comes at a high cost in computational complexity. Even though linear-complexity approximation…

机器学习 · 计算机科学 2019-05-29 Kubilay Atasu , Thomas Mittelholzer

Persistence diagrams (PDs) are used as signatures of point cloud data. Two clouds of points can be compared using the bottleneck distance d_B between their PDs. A potential drawback of this pipeline is that point clouds sampled from…

计算几何 · 计算机科学 2024-08-30 Nathan H. May , Bala Krishnamoorthy , Patrick Gambill

The paper proposes an improved error-resilient Lempel-Ziv'77 (LZ'77) algorithm employing an adaptive amount of parity bits for error protection. It is a modified version of error resilient algorithm LZRS'77, proposed recently, which uses a…

信息论 · 计算机科学 2008-04-21 Tomaz Korosec , Saso Tomazic

Dimension is a standard and well-studied measure of complexity of posets. Recent research has provided many new upper bounds on the dimension for various structurally restricted classes of posets. Bounded dimension gives a succinct…

组合数学 · 数学 2017-05-26 William T. Trotter , Bartosz Walczak

Recently, deep convolutional neural networks (CNNs) have achieved many eye-catching results. However, deploying CNNs on resource-constrained edge devices is constrained by limited memory bandwidth for transmitting large intermediated data…

图像与视频处理 · 电气工程与系统科学 2022-07-20 Yu-Shan Tai , Cheng-Yang Chang , Chieh-Fang Teng , AnYeu , Wu

The Lempel-Ziv universal coding scheme is asymptotically optimal for the class of all stationary ergodic sources. A problem of robustness of this property under small violations of ergodicity is studied. A notion of deficiency of…

信息论 · 计算机科学 2008-06-30 V. V. V'yugin

Pre-trained word embeddings like ELMo and BERT contain rich syntactic and semantic information, resulting in state-of-the-art performance on various tasks. We propose a very fast variational information bottleneck (VIB) method to…

计算与语言 · 计算机科学 2019-10-02 Xiang Lisa Li , Jason Eisner

One requirement of maintaining digital information is storage. With the latest advances in the digital world, new emerging media types have required even more storage space to be kept than before. In fact, in many cases it is required to…

Static word embedding is still useful, particularly for context-unavailable tasks, because in the case of no context available, pre-trained language models often perform worse than static word embeddings. Although dimension is a key factor…

计算与语言 · 计算机科学 2023-05-16 Lingfeng Shen , Haiyun Jiang , Lemao Liu , Ying Chen

Consider the case where consecutive blocks of N letters of a semi-infinite individual sequence X over a finite-alphabet are being compressed into binary sequences by some one-to-one mapping. No a-priori information about X is available at…

信息论 · 计算机科学 2013-01-25 Jacob Ziv

Normalized information distance (NID) uses the theoretical notion of Kolmogorov complexity, which for practical purposes is approximated by the length of the compressed version of the file involved, using a real-world compression program.…

计算复杂性 · 计算机科学 2009-10-23 Sebastiaan A. Terwijn , Leen Torenvliet , Paul M. B. Vitanyi

Beyond achieving higher compression efficiency over classical image compression codecs, deep image compression is expected to be improved with additional side information, e.g., another image from a different perspective of the same scene.…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Yujun Huang , Bin Chen , Shiyu Qin , Jiawei Li , Yaowei Wang , Tao Dai , Shu-Tao Xia

The classical perceptron rule provides a varying upper bound on the maximum margin, namely the length of the current weight vector divided by the total number of updates up to that time. Requiring that the perceptron updates its internal…

机器学习 · 计算机科学 2011-05-31 Constantinos Panagiotakopoulos , Petroula Tsampouka

We introduce a new approach to LZ77 factorization that uses O(n/d) words of working space and O(dn) time for any d >= 1 (for polylogarithmic alphabet sizes). We also describe carefully engineered implementations of alternative approaches to…

数据结构与算法 · 计算机科学 2020-12-11 Juha Kärkkäinen , Dominik Kempa , Simon J. Puglisi

We propose a new extension of higher-order pushdown automata, which allows to use an infinite alphabet. The new automata recognize languages of data words (instead of normal words), which beside each its letter from a finite alphabet have a…

形式语言与自动机理论 · 计算机科学 2012-10-10 Paweł Parys

Metric Differential Privacy (mDP) extends the concept of Differential Privacy (DP) to serve as a new paradigm of data perturbation. It is designed to protect secret data represented in general metric space, such as text data encoded as word…

人工智能 · 计算机科学 2024-05-10 Chenxi Qiu

Web archives, query and proxy logs, and so on, can all be very large and highly repetitive; and are accessed only sporadically and partially, rather than continually and holistically. This type of data is ideal for compression-based…

信息论 · 计算机科学 2016-03-01 Matthias Petri , Alistair Moffat , P. C. Nagesh , Anthony Wirth
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