Search Results for author: Jianyong Sun

Found 10 papers, 2 papers with code

Learning adaptive differential evolution algorithm from optimization experiences by policy gradient

no code implementations6 Feb 2021 Jianyong Sun, Xin Liu, Thomas Bäck, Zongben Xu

A reinforcement learning algorithm, named policy gradient, is applied to learn an agent (i. e. parameter controller) that can provide the control parameters of a proposed differential evolution adaptively during the search procedure.

Evolutionary Algorithms

Amortized Variational Deep Q Network

1 code implementation3 Nov 2020 Haotian Zhang, Yuhao Wang, Jianyong Sun, Zongben Xu

Efficient exploration is one of the most important issues in deep reinforcement learning.

Efficient Exploration OpenAI Gym +1

Graph Neural Network Encoding for Community Detection in Attribute Networks

1 code implementation6 Jun 2020 Jianyong Sun, Wei Zheng, Qingfu Zhang, Zongben Xu

Based on the new encoding method and the two objectives, a multiobjective evolutionary algorithm (MOEA) based upon NSGA-II, termed as continuous encoding MOEA, is developed for the transformed community detection problem with continuous decision variables.

Attribute Community Detection

Learning to be Global Optimizer

no code implementations10 Mar 2020 Haotian Zhang, Jianyong Sun, Zongben Xu

This paper proposes to learn a two-phase (including a minimization phase and an escaping phase) global optimization algorithm for smooth non-convex functions.

Image Classification

On Hyper-parameter Tuning for Stochastic Optimization Algorithms

no code implementations4 Mar 2020 Haotian Zhang, Jianyong Sun, Zongben Xu

This paper proposes the first-ever algorithmic framework for tuning hyper-parameters of stochastic optimization algorithm based on reinforcement learning.

Bayesian Optimization Evolutionary Algorithms

Adaptive Structural Hyper-Parameter Configuration by Q-Learning

no code implementations2 Mar 2020 Haotian Zhang, Jianyong Sun, Zongben Xu

Tuning hyper-parameters for evolutionary algorithms is an important issue in computational intelligence.

Evolutionary Algorithms Q-Learning +3

Multi-objectivization Inspired Metaheuristics for the Sum-of-the-Parts Combinatorial Optimization Problems

no code implementations12 Nov 2019 Jialong Shi, Jianyong Sun, Qingfu Zhang

For a sum-of-the-parts combinatorial optimization problem, we propose to decompose its original objective into two sub-objectives with controllable correlation.

Combinatorial Optimization Traveling Salesman Problem

Homotopic Convex Transformation: A New Landscape Smoothing Method for the Traveling Salesman Problem

no code implementations14 May 2019 Jialong Shi, Jianyong Sun, Qingfu Zhang, Kai Ye

We first define the Homotopic Convex (HC) transformation of a TSP as a convex combination of a well-constructed simple TSP and the original TSP.

Traveling Salesman Problem

From Adaptive Kernel Density Estimation to Sparse Mixture Models

no code implementations11 Dec 2018 Colas Schretter, Jianyong Sun, Peter Schelkens

We introduce a balloon estimator in a generalized expectation-maximization method for estimating all parameters of a Gaussian mixture model given one data sample per mixture component.

Density Estimation

Learning from Non-Stationary Stream Data in Multiobjective Evolutionary Algorithm

no code implementations16 Jun 2016 Jianyong Sun, Hu Zhang, Aimin Zhou, Qingfu Zhang

Evolutionary algorithms (EAs) have been well acknowledged as a promising paradigm for solving optimisation problems with multiple conflicting objectives in the sense that they are able to locate a set of diverse approximations of Pareto optimal solutions in a single run.

Clustering Evolutionary Algorithms

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