Results 21 to 30 of about 24,372,621 (308)

Time-Universal Data Compression

open access: yesAlgorithms, 2019
Nowadays, a variety of data-compressors (or archivers) is available, each of which has its merits, and it is impossible to single out the best ones. Thus, one faces the problem of choosing the best method to compress a given file, and this problem is ...
Boris Ryabko
doaj   +1 more source

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 for sequencing data [PDF]

open access: yesAlgorithms for Molecular Biology, 2013
: Post-Sanger sequencing methods produce tons of data, and there is a general agreement that the challenge to store and process them must be addressed with data compression. In this review we first answer the question "why compression" in a quantitative manner. Then we also answer the questions "what" and "how", by sketching the fundamental compression
Sebastian Deorowicz, Szymon Grabowski
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

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   +4 more sources

Data Compression for Helioseismology [PDF]

open access: yes, 2022
Efficient data compression will play an important role for several upcoming and planned space missions involving helioseismology, such as Solar Orbiter. Solar Orbiter, to be launched in October 2018, will be the next space mission involving helioseismology. The main characteristic of Solar Orbiter lies in its orbit. The spacecraft will have an inclined
Löptien, Björn   +4 more
openaire   +3 more sources

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