no code implementations • 6 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.
1 code implementation • 3 Nov 2020 • Haotian Zhang, Yuhao Wang, Jianyong Sun, Zongben Xu
Efficient exploration is one of the most important issues in deep reinforcement learning.
1 code implementation • 6 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.
no code implementations • 10 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.
no code implementations • 4 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.
no code implementations • 2 Mar 2020 • Haotian Zhang, Jianyong Sun, Zongben Xu
Tuning hyper-parameters for evolutionary algorithms is an important issue in computational intelligence.
no code implementations • 12 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.
no code implementations • 14 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.
no code implementations • 11 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.
no code implementations • 16 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.