Results 21 to 30 of about 2,102 (184)

A Decentralized Medical Network for Maintaining Patient Records Using Blockchain Technology

open access: yesCybernetics and Information Technologies, 2022
Personal Medical Records (PMR) manage an individual’s medical information in digital form and allow patients to view their medical information and doctors to diagnose diseases. Today’s institution-dependent centralized storage, fails to give trustworthy,
Sumathi M.   +3 more
doaj   +1 more source

Lower Bounds on the Redundancy of Huffman Codes With Known and Unknown Probabilities

open access: yesIEEE Access, 2019
In this paper, we provide a method to obtain tight lower bounds on the minimum redundancy achievable by a Huffman code when the probability distribution underlying an alphabet is only partially known.
Ian Blanes   +3 more
doaj   +1 more source

Block huffman coding

open access: yesComputers & Mathematics with Applications, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abdul Mannan, M., Kaykobad, M.
openaire   +2 more sources

The Optimal Fix-Free Code for Anti-Uniform Sources

open access: yesEntropy, 2015
An \(n\) symbol source which has a Huffman code with codelength vector \(L_{n}=(1,2,3,\cdots,n-2,n-1,n-1)\) is called an anti-uniform source. In this paper, it is shown that for this class of sources, the optimal fix-free code and symmetric fix-free ...
Ali Zaghian   +2 more
doaj   +1 more source

A Dynamic and Parallel Two-Stage Lossless Data Compression Method for Smart Grid

open access: yesIEEE Access, 2023
With the rapid development of smart grid (SG) technologies, massive system data has been generated for SG for grid operation status monitoring and fault warning, this massive integrated data has brought great challenges for data transmission and storage.
Yanxia Wu   +5 more
doaj   +1 more source

Approximating Huffman Codes in Parallel

open access: yesJournal of Discrete Algorithms, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Piotr Berman   +2 more
openaire   +3 more sources

بهینه‌سازی کدهای دودویی

open access: yesعلوم رایانش و فناوری اطلاعات, 2021
All binary codes, even Huffman optimal code, are kind of non-optimal bit arrangement. Therefore, binary code optimization is a challenging problem. In this paper an algorithm is proposed to optimize the codes by converting any type of binary code to a ...
پرویز قره باقری   +2 more
doaj  

Penerapan Metode Kompresi Huffman untuk Meningkatkan Jumlah Data Informasi pada Kode Quick Response

open access: yesJOINS (Journal of Information System), 2022
Kecepatan memperoleh informasi merupakan hal yang sangat penting. Pemanfaatan kode Quick Response (QR) menjadi salah satu cara dalam upaya memperoleh informasi secara cepat.
Hidayat Hidayat   +1 more
doaj   +1 more source

Efficient Coding of the Embedded Signal in Steganographic Systems with Multiple Access [PDF]

open access: yesProblems of the Regional Energetics, 2021
Today, steganographic systems with multiple access are of considerable importance. In such sys-tems, the orthogonal Walsh-Hadamard transform is most often used for multiplexing and divid-ing channels, which leads to the need for efficient coding of the ...
Kobozeva A.A., Kobozeva A.A.,
doaj   +1 more source

A quantum analog of Huffman coding [PDF]

open access: yesIEEE Transactions on Information Theory, 2000
Revised version, 7 pages, two-column, RevTex.
Samuel L. Braunstein   +3 more
openaire   +4 more sources

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