Partial correlation graphical LASSO
Partial correlation graphical LASSO
复制标题
偏相关图形LASSO
DOI:
10.1111/sjos.12675
复制
发表时间:
2023
影响因子:
1
通讯作者:
Carter J
中科院分区:
文献类型:
--
作者:
Carter J
Standard likelihood penalties to learn Gaussian graphical models are based on regularizing the off‐diagonal entries of the precision matrix. Such methods, and their Bayesian counterparts, are not invariant to scalar multiplication of the variables, unless one standardizes the observed data to unit sample variances. We show that such standardization can have a strong effect on inference and introduce a new family of penalties based on partial correlations. We show that the latter, as well as the maximum likelihood, L0$$ {L}_0 $$ and logarithmic penalties are scale invariant. We illustrate the use of one such penalty, the partial correlation graphical LASSO, which sets an L1$$ {L}_1 $$ penalty on partial correlations. The associated optimization problem is no longer convex, but is conditionally convex. We show via simulated examples and in two real datasets that, besides being scale invariant, there can be important gains in terms of inference.
登录
查看更多内容
影响因子:
50.3
作者:
Calon A;Espinet E;Palomo-Ponce S;Tauriello DV;Iglesias M;Céspedes MV;Sevillano M;Nadal C;Jung P;Zhang XH;Byrom D;Riera A;Rossell D;Mangues R;Massagué J;Sancho E;Batlle E
通讯作者:
Batlle E
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
I. Vujačić;A. Abbruzzo;E. Wit
通讯作者:
E. Wit
影响因子:
0.8
作者:
Khondker ZS;Zhu H;Chu H;Lin W;Ibrahim JG
通讯作者:
Ibrahim JG
DOI:
10.1080/01621459.2018.1482755
发表时间:
2019-07-03
影响因子:
3.7
作者:
Gan, Lingrui;Narisetty, Naveen N.;Liang, Feng
通讯作者:
Liang, Feng
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Williams Dr
通讯作者:
Williams Dr