Article,

Survey on Multi-Dimensional Datasets

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Imperial Journal of Interdisciplinary Research, (2017)

Abstract

Keyword-based search in text-rich multi-dimensional datasets facilitates many novel applications and tools. In this paper, the objects that are tagged with keywords are embedded in a vector space. For these datasets, queries where asked for the tightest groups of points satisfying a given set of keywords. A novel method called ProMiSH (Projection and Multi Scale Hashing) which uses random projection and hash-based index structures, and achieves high scalability and speedup. Thus, the paper introduces an exact and an approximate version of the algorithms.

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