Results 11 to 20 of about 365,915 (264)

On the Randomness of Compressed Data [PDF]

open access: yes2019 Data Compression Conference (DCC), 2019
It seems reasonable to expect from a good compression method that its output should not be further compressible, because it should behave essentially like random data. We investigate this premise for a variety of known lossless compression techniques, and find that, surprisingly, there is much variability in the randomness, depending on the chosen ...
Shmuel T. Klein, Dana Shapira
openaire   +2 more sources

Toward Bayesian Data Compression [PDF]

open access: yesAnnalen der Physik, 2021
AbstractIn order to handle large datasets omnipresent in modern science, efficient compression algorithms are necessary. Here, a Bayesian data compression (BDC) algorithm that adapts to the specific measurement situation is derived in the context of signal reconstruction.
Johannes Harth‐Kitzerow   +3 more
openaire   +4 more sources

Digital watermarking method based on heteroassociative image compression and its realization with artificial neural networks [PDF]

open access: yesКомпьютерная оптика, 2018
In this paper, we present a digital watermarking method and associated algorithms that use a heteroassociative compressive transformation to embed a digital watermark bit sequence into blocks (fragments) of container images.
Alexander Sirota   +2 more
doaj   +1 more source

Trajectory Data Compression Algorithm Based on Ship Navigation State and Acceleration Variation

open access: yesJournal of Marine Science and Engineering, 2023
An active area of study under the dual carbon target, which is based on automatic identification systems (AIS), is the emission inventory of pollutants from ships.
Junbo Gao, Ze Cai, Wangjing Yu, Wei Sun
doaj   +1 more source

Data compression

open access: yesACM Computing Surveys, 1987
This paper surveys a variety of data compression methods spanning almost 40 years of research, from the work of Shannon, Fano, and Huffman in the late 1940s to a technique developed in 1986. The aim of data compression is to reduce redundancy in stored or communicated data, thus increasing effective data density.
Lelewer, Debra A., Hirschberg, Daniel S.
openaire   +3 more sources

Improved Edge Folding Algorithm for 3D Building Models Taking into Account the Visual Features

open access: yesBuildings, 2023
Simplifying 3D building models, effectively reducing model complexity and improving mapping efficiency, is an important part of 3D GIS. In order to address the problem that the simplification basis considered by most 3D building model data compression ...
Haoyuan Bai   +4 more
doaj   +1 more source

Interactive Compression of Digital Data

open access: yesAlgorithms, 2010
If we can use previous knowledge of the source (or the knowledge of a source that is correlated to the one we want to compress) to exploit the compression process then we can have significant gains in compression.
Bruno Carpentieri
doaj   +1 more source

A tight upper bound on the size of the antidictionary of a binary string [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
A tight upper bound of the size of the antidictionary of a binary string is presented. And it is shown that the size of the antidictionary of a binary sting is always smaller than or equal to that of its dictionary.
Hiroyoshi Morita, Takahiro Ota
doaj   +1 more source

Average Redundancy for Known Sources: Ubiquitous Trees in Source Coding [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Analytic information theory aims at studying problems of information theory using analytic techniques of computer science and combinatorics. Following Hadamard's precept, these problems are tackled by complex analysis methods such as generating functions,
Wojciech Szpankowski
doaj   +1 more source

An Introduction to Neural Data Compression

open access: yesFoundations and Trends® in Computer Graphics and Vision, 2023
Neural compression is the application of neural networks and other machine learning methods to data compression. Recent advances in statistical machine learning have opened up new possibilities for data compression, allowing compression algorithms to be learned end-to-end from data using powerful generative models such as normalizing flows, variational
Yibo Yang, Stephan Mandt, Lucas Theis
openaire   +2 more sources

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