Results 11 to 20 of about 74,437 (278)

Combinatorial batch codes [PDF]

open access: yesAdvances in Mathematics of Communications, 2008
In this paper, we study batch codes, which were introduced by Ishai, Kushilevitz, Ostrovsky and Sahai in [4]. A batch code specifies a method to distribute a database of [n] items among [m] devices (servers) in such a way that any [k] items can be ...
Paterson, Maura B.   +2 more
core   +7 more sources

Multiset Combinatorial Batch Codes [PDF]

open access: yes2017 IEEE International Symposium on Information Theory (ISIT), 2017
Batch codes, first introduced by Ishai, Kushilevitz, Ostrovsky, and Sahai, mimic a distributed storage of a set of $n$ data items on $m$ servers, in such a way that any batch of $k$ data items can be retrieved by reading at most some $t$ symbols from ...
Silberstein, Natalia   +2 more
core   +2 more sources

Combinatorial polarization, code loops, and codes of high level [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We first find the combinatorial degree of any map f:V→F, where F is a finite field and V is a finite-dimensional vector space over F. We then simplify and generalize a certain construction, due to Chein and Goodaire, that was used in characterizing code
Petr Vojtechovský
doaj   +3 more sources

Derandomized Construction of Combinatorial Batch Codes [PDF]

open access: yes, 2015
Combinatorial Batch Codes (CBCs), replication-based variant of Batch Codes introduced by Ishai et al. in STOC 2004, abstracts the following data distribution problem: $n$ data items are to be replicated among $m$ servers in such a way that any $k$ of the
B Bollobás   +13 more
core   +2 more sources

Bio-Constrained Codes with Neural Network for Density-Based DNA Data Storage

open access: yesMathematics, 2022
DNA has evolved as a cutting-edge medium for digital information storage due to its extremely high density and durable preservation to accommodate the data explosion. However, the strings of DNA are prone to errors during the hybridization process.
Abdur Rasool   +3 more
doaj   +1 more source

A Combinatorial Approach to Flag Codes

open access: yesCoRR, 2021
In network coding, a flag code is a collection of flags, that is, sequences of nested subspaces of a vector space over a finite field. Due to its definition as the sum of the corresponding subspace distances, the flag distance parameter encloses a hidden combinatorial structure.
Clementa Alonso-González   +1 more
openaire   +2 more sources

On the generalized Hamming weights of certain Reed–Muller-type codes

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
There is a nice combinatorial formula of P. Beelen and M. Datta for the r-th generalized Hamming weight of an a ne cartesian code. Using this combinatorial formula we give an easy to evaluate formula to compute the r-th generalized Hamming weight for a ...
González-Sarabia Manuel   +2 more
doaj   +1 more source

On the Use of Gray Codes for Solving 0-1 Combinatorial Problems of Optimization in Environmental and Economic Systems

open access: yesКібернетика та комп'ютерні технології, 2022
Introduction. The application of binary-reflected (mirror, reflexive) Gray codes for solving combinatorial problems with pseudo-Boolean functions (polynomials from Boolean variables) is considered.
Oleksandr Trofymchuk   +4 more
doaj   +1 more source

Three Combinatorial Perspectives on Minimal Codes [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2022
27 ...
Gianira N. Alfarano   +3 more
openaire   +8 more sources

General Fractional Repetition Codes From Combinatorial Designs

open access: yesIEEE Access, 2017
Fractional repetition codes are a class of distributed storage codes dedicated to optimize the node repair performance, i.e., they enable uncoded exact repairs with minimum bandwidth consumption.
Bing Zhu, Hui Li, Shuo-Yen Robert Li
doaj   +1 more source

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