Search Results for author: Jinsong Liu

Found 5 papers, 0 papers with code

Stochastic Dimension-reduced Second-order Methods for Policy Optimization

no code implementations28 Jan 2023 Jinsong Liu, Chenghan Xie, Qi Deng, Dongdong Ge, Yinyu Ye

In this paper, we propose several new stochastic second-order algorithms for policy optimization that only require gradient and Hessian-vector product in each iteration, making them computationally efficient and comparable to policy gradient methods.

Policy Gradient Methods Second-order methods

Carleson measures on convex domains

no code implementations26 Nov 2020 Haichou Li, Jinsong Liu, Hongyu Wang

Following M. Abate and A. Saracco's work on strongly pseudoconvex domains in $\mathbb{C}^n$, we characterize Carleson measures of $A^2(D)$ in bounded convex domains with smooth boundary of finite type.

Complex Variables

Patch-based Fake Fingerprint Detection Using a Fully Convolutional Neural Network with a Small Number of Parameters and an Optimal Threshold

no code implementations21 Mar 2018 Eunsoo Park, Xuenan Cui, Weonjin Kim, Jinsong Liu, Hakil Kim

This study proposes a patch-based fake fingerprint detection method using a fully convolutional neural network with a small number of parameters and an optimal threshold to solve the above-mentioned problem.

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