Computational Implications of Reducing Data to Sufficient Statistics
Computational Implications of Reducing Data to Sufficient Statistics
复制标题
将数据简化为充分统计的计算意义
DOI:
10.1214/15-ejs1059
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
A. Montanari
中科院分区:
文献类型:
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作者:
A. Montanari
Given a large dataset and an estimation task, it is common to pre-process the data by reducing them to a set of sufficient statistics. This step is often regarded as straightforward and advantageous (in that it simplifies statistical analysis). I show that -on the contrary- reducing data to sufficient statistics can change a computationally tractable estimation problem into an intractable one. I discuss connections with recent work in theoretical computer science, and implications for some techniques to estimate graphical models.