Stochastic Compositional Gradient Descent:Algorithms for Minimizing Compositions of Expected-Value F

来源 :第八届工业与应用数学国际大会 | 被引量 : 0次 | 上传用户:minisnake1
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  We focus on the minimization of a composition of two expectedvalue functions.In order to solve this stochastic composition problem,we propose a class of stochastic compositional gradient descent(SCGD)algorithms that can be viewed as stochastic versions of quasi-gradient method.
其他文献
  Many image reconstruction tasks amount to solve ill-posed inverse problems.Indeed,measurement devices typically cannot record all the information needed to
会议
  We introduce a PDE-free variational model for multiphase image segmentation in a modified diffuse interface context.This model uses such features of diffuse
会议
  It is very important now to develop methods of solving multidimensional ill-posed problems using regularization procedures and parallel computers.The main p
会议
  We propose inertial variants of the proximal point method and the ADMM.Under certain conditions,we are able to establish the global convergence and o(1/k)co
会议
  The purpose of blind source separation is to separate the original sources from the sensor array,without knowing the transmission channel characteristics.
会议
  We consider the class of nondifferentiable convex problems which minimizes a nonsmooth convex objective over a smooth inequality constraint.Exploiting the s
会议
  In Brazil some big river passes inside the city.During the rain season,it causes civil troubles because of water-plant on the surface of river.We like to de
会议
  Assessment of the pulse character for disease diagnosis is one of the key medical skills in Traditional Chinese Medicine practice.When and where abnormaliti
会议
  The CANDU reactor is a Canadian-invented,pressurized heavy water reactor.In-core flux detector signal data is routinely acquired from all CANDU reactors,whi
会议
  Time-frequency representations depict variations of the spectral characteristics of signals as a function of time,which is ideally suited for nonstationary
会议