1. Human-Centric Intelligent Systems: A Welcome Note from Editor(s)-in-Chief

   • Tianrui Li
   • Guandong Xu

   Editorial Open access 08 July 2021 Pages: 1 - 2

2. Deep Visual Analytics (DVA): Applications, Challenges and Future Directions

   • Rafiqul Islam
   • Shanjita Akter
   • Guandong Xu

   Review Open access 22 July 2021 Pages: 3 - 17

3. An Empirical Study of Learning Based Happiness Prediction Approaches

   • Miao Kong
   • Lin Li
   • Xiaohui Tao

   Research Article Open access 08 July 2021 Pages: 18 - 24

4. Interactive Attention-Based Convolutional GRU for Aspect Level Sentiment Analysis

   • Lisha Chen
   • Tianrui Li
   • Chengfeng Yin

   Research Article Open access 20 July 2021 Pages: 25 - 31

5. Semantic Knowledge Discovery for User Profiling for Location-Based Recommender Systems

   • Xiaohui Tao
   • Nischal Sharma
   • Aimin Hu

   Research Article Open access 19 July 2021 Pages: 32 - 42

6. Context-Based User Typicality Collaborative Filtering Recommendation

   • Jinzhen Zhang
   • Qinghua Zhang
   • Xintai Li

   Research Article Open access 20 June 2021 Pages: 43 - 53