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首页> 外文期刊>International Journal of Computer Science and Technology >Approximate Nearest Neighbor Search towards Removing the Curse of Dimensionality Query-Aware and Locality-Sensitive Hashing
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Approximate Nearest Neighbor Search towards Removing the Curse of Dimensionality Query-Aware and Locality-Sensitive Hashing

机译:近似最近邻搜索,以消除维度查询意识和位置敏感哈希的诅咒

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摘要

We show a simple vector quantizer that consolidates low mutilation with speedyrecreation and apply it to Approximate Nearest Neighbor (ANN) look in high dimensional spaces. Utilizing the extremely same information structure that is utilized to give non-comprehensive hunt, i.e., disturbed records or a multi list, the thought is to locally streamline an individual Product Quantizer (PQ) per cell and utilize it to encode residuals. Local optimization is over turn and space deterioration; strikingly, we apply a parametric arrangement that accept a typical dissemination and is to a great degree quick to prepare. With a sensible space and time overhead that is consistent in the information estimate, we set another state-of-the-art on a few open datasets, including a billion-scale one. The Approximate Nearest Neighbor (ANN) look plays out the quick and effective recovery of information as the span of information develop increments quickly. It investigates the quantization centroids on numerous relative subspace. We propose an iterative way to deal with limit the quantization blunder keeping in mind the end goal to make a novel quantization plot, which beats the state-of-the-art calculations. The computational cost of our strategy is likewise practically identical to that of the contending strategies.Full Paper
机译:我们展示了一个简单的矢量量化器,它将低残缺率与speedyrecreation合并,并将其应用于高维空间中的近似最近邻居(ANN)外观。利用用于进行非全面搜寻的极其相同的信息结构(即受干扰的记录或多列表),其思想是在本地简化每个单元格的单个产品量化器(PQ),并利用其对残差进行编码。局部优化反过来会导致空间恶化;令人惊讶的是,我们采用了接受典型传播并且在很大程度上可以快速准备的参数布置。在合理的空间和时间开销(与信息估计值一致)的基础上,我们在一些开放的数据集(包括一个十亿规模的数据集)上设置了另一个最新技术。随着信息范围的迅速扩大,“近似最近邻”(ANN)外观可快速有效地恢复信息。它研究了许多相对子空间上的量化质心。我们提出一种迭代的方法来解决量化错误的局限性,同时牢记最终目标,以制作出新颖的量化图,从而超越最新的计算方法。我们的策略的计算成本实际上与竞争策略的计算成本相同。

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