Search Results for author: Zhiming Zheng

Found 11 papers, 1 papers with code

Policy Optimization with Smooth Guidance Learned from State-Only Demonstrations

no code implementations30 Dec 2023 GuoJian Wang, Faguo Wu, Xiao Zhang, Tianyuan Chen, Zhiming Zheng

The sparsity of reward feedback remains a challenging problem in online deep reinforcement learning (DRL).

Adaptive trajectory-constrained exploration strategy for deep reinforcement learning

1 code implementation27 Dec 2023 GuoJian Wang, Faguo Wu, Xiao Zhang, Ning Guo, Zhiming Zheng

Deep reinforcement learning (DRL) faces significant challenges in addressing the hard-exploration problems in tasks with sparse or deceptive rewards and large state spaces.

Multi-agent Reinforcement Learning reinforcement-learning

An Evolution Kernel Method for Graph Classification through Heat Diffusion Dynamics

no code implementations26 Jun 2023 Xue Liu, Dan Sun, Wei Wei, Zhiming Zheng

This approach incorporates the physics-based heat kernel and DropNode technique to transform each static graph into a sequence of temporal ones.

Graph Classification

Enhanced brain structure-function tethering in transmodal cortex revealed by high-frequency eigenmodes

no code implementations7 Jul 2022 Yaqian Yang, Zhiming Zheng, Longzhao Liu, Hongwei Zheng, Yi Zhen, Yi Zheng, Xin Wang, Shaoting Tang

Specifically, low-frequency eigenmodes, which are considered sufficient to capture the essence of the functional network, contribute little to functional connectivity reconstruction in transmodal regions, resulting in structure-function decoupling along the unimodal-transmodal gradient.

Parameter Convex Neural Networks

no code implementations11 Jun 2022 Jingcheng Zhou, Wei Wei, Xing Li, Bowen Pang, Zhiming Zheng

Deep learning utilizing deep neural networks (DNNs) has achieved a lot of success recently in many important areas such as computer vision, natural language processing, and recommendation systems.

Graph Attention Recommendation Systems

A novel feed rate scheduling method based on Sigmoid function with chord error and kinematics constraints

no code implementations12 May 2021 Hexiong Li, Xin Jiang, Guanying Huo, Cheng Su, Bolun Wang, Yifei Hu, Zhiming Zheng

With the consideration of kinematic limitation and machining efficiency, a time-optimal feed rate adjustment algorithm is proposed to further adjust feed rate value at breaking points.

Scheduling

Research of Damped Newton Stochastic Gradient Descent Method for Neural Network Training

no code implementations31 Mar 2021 Jingcheng Zhou, Wei Wei, Zhiming Zheng

First-order methods like stochastic gradient descent(SGD) are recently the popular optimization method to train deep neural networks (DNNs), but second-order methods are scarcely used because of the overpriced computing cost in getting the high-order information.

regression Second-order methods

A novel S-shape based NURBS interpolation with acc-jerk- Continuity and round-off error elimination

no code implementations26 Mar 2021 Yifei Hu, Xin Jiang, Guanying Huo, Cheng Su, Bolun Wang, Hexiong Li, Zhiming Zheng

The algorithm consists of three modules: bidirectional scanning module, velocity scheduling module and round-off error elimination module.

Scheduling

Representation Learning of Reconstructed Graphs Using Random Walk Graph Convolutional Network

no code implementations2 Jan 2021 Xing Li, Wei Wei, Xiangnan Feng, Zhiming Zheng

Graphs are often used to organize data because of their simple topological structure, and therefore play a key role in machine learning.

Graph Representation Learning Link Prediction +1

Representation Learning of Graphs Using Graph Convolutional Multilayer Networks Based on Motifs

no code implementations31 Jul 2020 Xing Li, Wei Wei, Xiangnan Feng, Xue Liu, Zhiming Zheng

The graph structure is a commonly used data storage mode, and it turns out that the low-dimensional embedded representation of nodes in the graph is extremely useful in various typical tasks, such as node classification, link prediction , etc.

Clustering Link Prediction +2

Discriminative Embedding Autoencoder with a Regressor Feedback for Zero-Shot Learning

no code implementations18 Jul 2019 Ying Shi, Wei Wei, Zhiming Zheng

Zero-shot learning (ZSL) aims to recognize the novel object categories using the semantic representation of categories, and the key idea is to explore the knowledge of how the novel class is semantically related to the familiar classes.

Generalized Zero-Shot Learning Object Recognition

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