【摘 要】
：
Model selection and sparse recovery are two important problems for which many regularization methods have been proposed.We study the properties of regulariz
【机 构】
：
University of Southern Califomia
【出 处】
：
2009 International Conference on Financial Statistics and Fi
论文部分内容阅读
Model selection and sparse recovery are two important problems for which many regularization methods have been proposed.We study the properties of regularization methods in both problems under the unified framework of regularized least squares with concave penalties.For model selection,we establish conditions under which a regularized least squares estimator enjoys a no asymptotic property,called the weak oracle property,where the dimensionality can grow exponentially with sample size.
其他文献
目的:探析在急性缺血性脑卒中患者的治疗中采用阿替普酶静脉溶栓治疗的临床效果观察.方法:本次研究对象选取与我院2018年9月-2019年10月收治的急性缺血性脑卒中患者,共计100
肾脏损伤是临床常见疾病,伴随工伤、交通事故的频发,肾脏损伤也呈现出逐年上升的发生趋势.肾脏损伤的治疗与损伤程度息息相关,轻微肾挫伤通过短时间休息便能够恢复正常,而肾
目的:研究无创呼吸机在慢性阻塞性肺疾病II型呼衰患者中的应用价值.方法:选取2018.03.01-2019.09.30我院住院的40例慢性阻塞性肺疾病伴II型呼吸衰竭的患者作为研究对象,随机
We derive a new way to test for stochastic dominance between the return of two assets using a quantile regression formulation.The test statistic is a varian
目的:探究人工关节治疗技术对创伤骨科患者的治疗效果.方法:将我院创伤骨科于2018年11月至2019年8月在我院接受治疗的48例骨科创伤患者作为本次实验的研究对象,根据手术治疗
Case-cohort design is a cost-effective sampling design approach for censored survival outcomes.It may be viewed as a special case of the more general two-ph
目的 研究建构主义学习理论指导下模拟外科教学查房的应用效果.方法 选择我校2016级护理本科4个班为研究对象,随机分为研究组和对照组,分别采用建构主义理论指导下的外科护理
Multivariate mixed linear models with two variance components is considered.Spectral decomposition estimators of variance component matrix in mixed linear m
Directional quantile envelopes essentially,depth contours---are a possible way to condense the directional quantile information,the information carried by t
选择品种盆栽荷花主要用作观赏,因此宜选择适合观赏的荷花品种,如并蒂莲、孩儿莲和碗莲等。选择容器盆栽荷花选用的容器不能太小,宜选择直径不少于50厘米、高度70厘米的各种