The Kullback-Leibler divergence as an estimator of the statistical properties of CMB maps
文献类型：期刊论文
| 作者 | Ben-David, A; Liu H(刘浩) ; Liu, H; Jackson, AD
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2015 |
| 卷号 | 6页码:51 |
| 关键词 | CMBR experiments non-gaussianity |
| 英文摘要 | The identification of unsubtracted foreground residuals in the cosmic microwave background maps on large scales is of crucial importance for the analysis of polarization signals. These residuals add a non-Gaussian contribution to the data. We propose the Kullback-Leibler (KL) divergence as an effective, non-parametric test on the one-point probability distribution function of the data. With motivation in information theory, the KL divergence takes into account the entire range of the distribution and is highly non-local. We demonstrate its use by analyzing the large scales of the Planck 2013 SMICA temperature fluctuation map and find it consistent with the expected distribution at a level of 6%. Comparing the results to those obtained using the more popular Kolmogorov-Smirnov test, we find the two methods to be in general agreement. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| WOS记录号 | WOS:000359215400052 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228671]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Ben-David, A,Liu H,Liu, H,et al. The Kullback-Leibler divergence as an estimator of the statistical properties of CMB maps[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2015,6:51. |
| APA | Ben-David, A,刘浩,Liu, H,&Jackson, AD.(2015).The Kullback-Leibler divergence as an estimator of the statistical properties of CMB maps.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,6,51. |
| MLA | Ben-David, A,et al."The Kullback-Leibler divergence as an estimator of the statistical properties of CMB maps".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 6(2015):51. |
入库方式： OAI收割
来源：高能物理研究所
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