Unconstrained Face Verification and Open-World Person Re-identification via Densely-connected Convolution Neural Network Topics: Deep Learning for Visual Understanding ; Face and Expression Recognition; Features Extraction; Machine Learning Technologies for Vision; Object and Face Recognition In Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 5 VISAPP: VISAPP, 443-449, 2019 , Prague, Czech Republic