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- W2085440179 abstract "Density biased sampling (DBS) has been proposed to address the limitations of Uniform sampling, by producing the desired probability distribution in the sample. The ease of producing a random sample depends on the available mechanism for accessing the elements of the dataset. Existing DBS algorithms perform sampling over flat files. In this paper, we develop a new method that exploits spatial indexes and the local density information they preserve, to provide good quality of sampling result and fast access to elements of the dataset. With the proposed method accurate density estimations can be produced with respect to factors like skew, noise or dimensionality. Moreover, significant improvement in sampling time is attained. The performance of the proposed method is examined analytically and experimentally. The comparative results illustrate its superiority over existing methods." @default.
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- W2085440179 date "2006-04-01" @default.
- W2085440179 modified "2023-10-04" @default.
- W2085440179 title "Indexed-based density biased sampling for clustering applications" @default.
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- W2085440179 doi "https://doi.org/10.1016/j.datak.2005.03.003" @default.
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