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arXiv 1508.00514cs.DS
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交互式通信纠正插入和删除的编码

Coding for interactive communication correcting insertions and deletions

Mark Braverman, Ran Gelles, Jieming Mao, Rafail Ostrovsky

摘要:

我们考虑的问题,交互式通信,其中两个远程方执行计算,而他们的通信信道是(adversarially)嘈杂。我们在这里扩展到一个更一般和更强的噪声类的讨论,即,我们允许信道执行符号的插入和删除。这些类型的错误可能会使各方“不同步”,因此,目前这一轮的协议没有达成共识。在这个更一般的噪声模型中,我们获得了第一个交互式编码方案,该方案具有恒定的速率,并抵抗高达$1/18-\varepsilon$的噪声速率。为此,我们开发了一种新的原语,我们命名为编辑距离树代码。编辑距离树码是为了取代Schulman树码(STOC 93)中的汉明距离约束而设计的,具有更强的编辑距离要求。然而,直接概括的树代码编辑距离似乎并没有产生一个原语,足以在存在同步问题的通信。给出编辑距离树代码的“正确”定义是这项工作的主要概念贡献。

英文摘要:

We consider the question of interactive communication, in which two remote parties perform a computation while their communication channel is (adversarially) noisy. We extend here the discussion into a more general and stronger class of noise, namely, we allow the channel to perform insertions and deletions of symbols. These types of errors may bring the parties "out of sync", so that there is no consensus regarding the current round of the protocol. In this more general noise model, we obtain the first interactive coding scheme that has a constant rate and resists noise rates of up to $1/18-\varepsilon$. To this end we develop a novel primitive we name edit distance tree code. The edit distance tree code is designed to replace the Hamming distance constraints in Schulman's tree codes (STOC 93), with a stronger edit distance requirement. However, the straightforward generalization of tree codes to edit distance does not seem to yield a primitive that suffices for communication in the presence of synchronization problems. Giving the "right" definition of edit distance tree codes is a main conceptual contribution of this work.

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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