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Maximum-distance separable (MDS) convolutional codes form an optimal family of convolutional codes, the study of which is of great importance. There are very few general algebraic constructions of MDS convolutional codes. In this paper, we…

信息论 · 计算机科学 2015-11-24 Chin Hei Chan , Maosheng Xiong

This paper presents a stochastic algorithm for iterative error control decoding. We show that the stochastic decoding algorithm is an approximation of the sum-product algorithm. When the code's factor graph is a tree, as with trellises, the…

信息论 · 计算机科学 2007-07-13 Chris Winstead , Anthony Rapley , Vincent C. Gaudet , Christian Schlegel

In this paper we study output coding for multi-label prediction. For a multi-label output coding to be discriminative, it is important that codewords for different label vectors are significantly different from each other. In the meantime,…

机器学习 · 计算机科学 2012-07-03 Yi Zhang , Jeff Schneider

We propose a novel distance to calculate distance between high dimensional vector pairs, utilizing vector quantization generated encodings. Vector quantization based methods are successful in handling large scale high dimensional data.…

计算机视觉与模式识别 · 计算机科学 2015-09-21 Shicong Liu , Junru Shao , Hongtao Lu

This paper proposes a generic formulation that significantly expedites the training and deployment of image classification models, particularly under the scenarios of many image categories and high feature dimensions. As a defining…

计算机视觉与模式识别 · 计算机科学 2016-03-15 Fumin Shen , Yadong Mu , Wei Liu , Yang Yang , Heng Tao Shen

The most common decision criteria for decoding are maximum likelihood decoding and nearest neighbor decoding. It is well-known that maximum likelihood decoding coincides with nearest neighbor decoding with respect to the Hamming metric on…

信息论 · 计算机科学 2015-06-12 Marcelo Firer , Judy L. Walker

A classical method of constructing a linear code over $\gf(q)$ with a $t$-design is to use the incidence matrix of the $t$-design as a generator matrix over $\gf(q)$ of the code. This approach has been extensively investigated in the…

信息论 · 计算机科学 2015-03-24 Cunsheng Ding

Shaping gain is attained in schemes where a shaped subcode is chosen from a larger codebook by a codeword selection process. This includes the popular method of Trellis Shaping (TS), originally proposed by Forney for average power…

信息论 · 计算机科学 2013-08-28 Stella Achtenberg , Dan Raphaeli

We study the locally recoverable codes on algebraic curves. In the first part of this article, we provide a bound of generalized Hamming weight of these codes. Whereas in the second part, we propose a new family of algebraic geometric LRC…

交换代数 · 数学 2016-05-25 Edoardo Ballico , Chiara Marcolla

Classes of self-dual codes and dual-containing codes are constructed. The codes are obtained within group rings and, using an isomorphism between group rings and matrices, equivalent codes are obtained in matrix form. Distances and other…

信息论 · 计算机科学 2007-11-27 Ted Hurley

One central theme in quantum error-correction is to construct quantum codes that have a large minimum distance. In this paper, we first present a construction of classical codes based on certain class of polynomials. Through these classical…

信息论 · 计算机科学 2015-08-06 Tao Zhang , Gennian Ge

Locally recoverable codes are widely used in distributed and cloud storage systems. The objective of this paper is to present a construction of near MDS codes with oval polynomials and then determine the locality of the codes. It turns out…

信息论 · 计算机科学 2022-04-27 Xiaoru Li , Ziling Heng

The construction of optimal linear block error-correcting codes is not an easy problem, for this, many studies describe methods for generating good error correcting codes in terms of minimum distance. In a previous work, we have presented…

信息论 · 计算机科学 2015-09-11 M. Askali , S. Nouh , A. Azouaoui , M. Belkasmi

A new polar coding scheme for higher order modulation is presented. The proposed scheme is based on multi-level coding (MLC) with natural labeling, where the bit-level corresponding to the sign-bit is generated in dependence on the previous…

信息论 · 计算机科学 2019-10-30 Onurcan İşcan , Ronald Böhnke , Wen Xu

In this paper, two classes of quantum MDS codes are constructed. The main tools are multiplicative structures on finite fields. Carefully choosing different cosets can make the corresponding generalized Reed-Solomon codes Hermitian…

信息论 · 计算机科学 2024-10-24 Puyin Wang , Jinquan Luo

This paper proposes new propagation rules on quantum codes in the entanglement-assisted and in quantum subsystem scenarios. The rules lead to new families of such quantum codes whose parameters are demonstrably optimal. To obtain the…

信息论 · 计算机科学 2022-06-22 Gaojun Luo , Martianus Frederic Ezerman , San Ling

A hybrid code can simultaneously encode classical and quantum information into quantum digits such that the information is protected against errors when transmitted through a quantum channel. It is shown that a hybrid code has the…

量子物理 · 物理学 2019-11-27 Andrew Nemec , Andreas Klappenecker

This paper considers the use of punctured convolutional codes to obtain pragmatic space-time trellis codes over block-fading channel. We show that good performance can be achieved even when puncturation is adopted and that we can still…

信息论 · 计算机科学 2007-07-13 Samuele Bandi , Luca Stabellini , Andrea Conti , Velio Tralli

The hull of a linear code is defined to be the intersection of the code and its dual. When the size of the hull is small, it has been proved that some algorithms for checking permutation equivalence of two linear codes and computing the…

信息论 · 计算机科学 2020-09-17 Yansheng Wu

We consider generalizations of Reed-Muller codes, toric codes, and codes from certain plane curves, such as those defined by norm and trace functions on finite fields. In each case we are interested in codes defined by evaluating arbitrary…

信息论 · 计算机科学 2007-07-16 Maria Bras-Amorós , Michael E. O'Sullivan