1. Message from the EiC

   • Tieniu Tan

   Editorial 21 January 2022 Pages: 1 - 2

2. Evolutionary Computation for Expensive Optimization: A Survey

   • Jian-Yu Li
   • Zhi-Hui Zhan
   • Jun Zhang

   Review Open access 21 January 2022 Pages: 3 - 23

3. Weakly Correlated Knowledge Integration for Few-shot Image Classification

   • Chun Yang
   • Chang Liu
   • Xu-Cheng Yin

   Research Article Open access 21 January 2022 Pages: 24 - 37

4. Multi-dimensional Classification via Selective Feature Augmentation

   • Bin-Bin Jia
   • Min-Ling Zhang

   Research Article Open access 21 January 2022 Pages: 38 - 51

5. Probability Enhanced Entropy (PEE) Novel Feature for Improved Bird Sound Classification

   • Ramashini Murugaiya
   • Pg Emeroylariffion Abas
   • Liyanage Chandratilak De Silva

   Research Article 21 January 2022 Pages: 52 - 62

6. A Framework for Distributed Semi-supervised Learning Using Single-layer Feedforward Networks

   • Jin Xie
   • San-Yang Liu
   • Jia-Xi Chen

   Research Article 21 January 2022 Pages: 63 - 74

7. Continuous-time Distributed Heavy-ball Algorithm for Distributed Convex Optimization over Undirected and Directed Graphs

   • Hao-Ran Yang
   • Wei Ni

   Research Article 21 January 2022 Pages: 75 - 88