Results 41 to 50 of about 483,886 (315)
Lossy Compression of Individual Sequences Revisited: Fundamental Limits of Finite-State Encoders
EntropyWe extend Ziv and Lempel’s model of finite-state encoders to the realm of lossy compression of individual sequences. In particular, the model of the encoder includes a finite-state reconstruction codebook followed by an information lossless finite-state ...
Neri Merhav
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Entropy Approximation in Lossy Source Coding Problem
Entropy, 2015 In this paper, we investigate a lossy source coding problem, where an upper limit on the permitted distortion is defined for every dataset element. It can be seen as an alternative approach to rate distortion theory where a bound on the allowed average ...
Marek Śmieja, Jacek Tabor
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Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
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Upper Bounds for the Rate Distortion Function of Finite-Length Data Blocks of Gaussian WSS Sources
Entropy, 2017 In this paper, we present upper bounds for the rate distortion function (RDF) of finite-length data blocks of Gaussian wide sense stationary (WSS) sources and we propose coding strategies to achieve such bounds.
Jesús Gutiérrez-Gutiérrez +2 more
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Source Symbol Purging-Based Distributed Conditional Arithmetic Coding
Entropy, 2021 A distributed arithmetic coding algorithm based on source symbol purging and using the context model is proposed to solve the asymmetric Slepian–Wolf problem.
Jingjian Li +4 more
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Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation
FEBS Letters, EarlyView.Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
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Analog coding of a source with erasures [PDF]
2016 IEEE International Symposium on Information Theory (ISIT), 2016 Analog coding decouples the tasks of protecting against erasures and noise. For erasure correction, it creates an "analog redundancy" by means of band-limited discrete Fourier transform (DFT) interpolation, or more generally, by an over-complete expansion based on a frame.
Ram Zamir, Marina Haikin
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FEBS Letters, EarlyView.The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang +2 more
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IEEE Access, 2016 In this paper, we first present the significance of information theory and several commonly referred concepts associated with it. Then, the communication channel models constructed by information theory are briefly introduced.
Guo Sheng +4 more
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Gaussian Source Coding using a Simple Switched Quantization Algorithm and Variable Length Codewords
Advances in Electrical and Computer Engineering, 2020 This paper introduces an algorithm based on switched scalar quantization utilizing a novel Îź-law quantization model (optimized in terms of minimal distortion) and variable length codewords, for high-quality encoding of the signals modeled by Gaussian ...
PERIC, Z. +5 more
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