Are Few Bins Enough: Testing Histogram Distributions
Are Few Bins Enough: Testing Histogram Distributions
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箱数就够了:测试直方图分布
DOI:
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发表时间:
2016
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通讯作者:
C. Canonne
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文献类型:
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作者:
C. Canonne
A probability distribution over an ordered universe [n]={1,...,n} is said to be a k-histogram if it can be represented as a piecewise-constant function over at most k contiguous intervals. We study the following question: given samples from an arbitrary distribution D over [n], one must decide whether D is a k-histogram, or is far in L_1 distance from any such succinct representation. We obtain a sample and time-efficient algorithm for this problem, complemented by a nearly-matching information-theoretic lower bound on the number of samples required for this task. Our results significantly improve on the previous state-of-the-art, due to Indyk, Levi, and Rubinfeld 2012) and Canonne, Diakonikolas, Gouleakis, and Rubinfeld (2016).
DOI:
10.48550/arxiv.1506.00671
发表时间:
2015
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作者:
Acharya J
通讯作者:
Acharya J
DOI:
10.48550/arxiv.1411.0169
发表时间:
2014
期刊:
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影响因子:
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作者:
Chan S
通讯作者:
Chan S