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arXiv 0712.4096cs.ITmath.IT
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多维爆发的误差修正

Error-Correction of Multidimensional Bursts

Tuvi Etzion, Eitan Yaakobi

摘要:

在本文中,我们提出了几种构造来生成用于纠正多维集群错误的代码。其目标是纠正形状可以是盒误差、李球误差或具有任意形状的误差的聚类误差。我们的代码具有非常低的冗余,接近最优,和大范围的参数的数组和集群。我们的主要结果总结如下:1)二维码的建设能够纠正矩形错误与以前已知的结构具有相当多的灵活的参数。这种构造的另一个优点是它很容易推广到D维。2)提出了一种基于D维空间D着色的D维码构造方法,用于纠正各种形状的D维聚类错误。该方法被有效地应用于纠正以前的构造没有有效地覆盖的参数的D维聚类错误。3)D维空间到另一个D维空间的一种变换,这样一个D维李球就被变换成一个位于一个相对较小的D维盒子中的形状。我们使用前面的结构来纠正一个D维错误,其形状是一个D维李球。4)应用着色法更有效地校正形状为Lee球的二维误差。D维的情况下也进行了讨论。5)一种能够纠正长度为b的突发错误的一维码的结构,其中错误位置的数目与b相比相对较小。这种构造推广到D维码。6)应用修正Lee球误差和修正具有少量错误位置的簇误差的构造,修正任意簇误差。

英文摘要:

In this paper we present several constructions to generate codes for correcting a multidimensional cluster-error. The goal is to correct a cluster-error whose shape can be a box-error, a Lee sphere error, or an error with an arbitrary shape. Our codes have very low redundancy, close to optimal, and large range of parameters of arrays and clusters. Our main results are summarized as follows: 1) A construction of two-dimensional codes capable to correct a rectangular-error with considerably more flexible parameters from previously known constructions. Another advantage of this construction is that it is easily generalized for D dimensions. 2) A novel method based on D colorings of the D-dimensional space for constructing D-dimensional codes correcting D-dimensional cluster-error of various shapes. This method is applied efficiently to correct a D-dimensional cluster error of parameters not covered efficiently by previous onstructions. 3) A transformation of the D-dimensional space into another D-dimensional space such that a D-dimensional Lee sphere is transformed into a shape located in a D-dimensional box of a relatively small size. We use the previous constructions to correct a D-dimensional error whose shape is a D-dimensional Lee sphere. 4) Applying the coloring method to correct more efficiently a two-dimensional error whose shape is a Lee sphere. The D-dimensional case is also discussed. 5) A construction of one-dimensional codes capable to correct a burst-error of length b in which the number of erroneous positions is relatively small compared to b. This construction is generalized for D-dimensional codes. 6) Applying the constructions correcting a Lee sphere error and a cluster-error with small number of erroneous positions, to correct an arbitrary cluster-error.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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