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Cell probe lower bounds for succinct data structures

机译:精简数据结构的单元探针下限

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In this paper, we consider several static data structure problems in the deterministic cell probe model. We develop a new technique for proving lower bounds for succinct data structures, where the redundancy in the storage can be small compared to the information-theoretic minimum. In fact, we succeed in matching (up to constant factors) the lower order terms of the existing data structures with the lower order terms provided by our lower bound. Using this technique, we obtain (i) the first lower bound for the problem of searching and retrieval of a substring in text; (ii) a cell probe lower bound for the problem of representing permutation π with queries π(i) and π−1(i) that matches the lower order term of the existing data structures, and (iii) a lower bound for representing binary matrices that is also matches upper bounds for some set of parameters. The nature of all these problems is that we are to implement two operations that are in a reciprocal relation to each other (search and retrieval, computing forward and inverse element, operations on rows and columns of a matrix). As far as we know, this paper is the first to provide an insight into such problems.
机译:在本文中,我们考虑确定性单元探针模型中的几个静态数据结构问题。我们开发了一种新技术来证明简洁的数据结构的下界,与信息理论的最小值相比,存储中的冗余可以小。实际上,我们成功地将现有数据结构的低阶项与我们的下限提供的低阶项进行了匹配(直至恒定因子)。使用这种技术,我们获得(i)搜索和检索文本中的子字符串问题的第一个下限; (ii)用于与查询π(i)和π-1(i)表示排列π的问题的单元探针下界,该查询与现有数据结构的低阶项匹配,并且(iii)表示二进制的下界也与某些参数集的上限匹配的矩阵。所有这些问题的本质是,我们要实现两个互为倒数的操作(搜索和检索,计算正向和反向元素,对矩阵的行和列进行操作)。据我们所知,本文是第一个提供有关此类问题的见解的文章。

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