This book constitutes selected papers presented at the the 4th International Conference on Science, Engineering Management and Information Technology, SEMIT 2024, held in Ankara, Turkey, during September 12-13, 2024.

The 27 full papers included in this book were carefully reviewed and selected from 123 submissions. These papers were organized in the following topical sections: Advances of AI/ML and Optimization in IT and Engineering; Novel AI Techniques in Healthcare and Medicine; Digital Technologies for Customer Service Orientation and Social Sustainability; Applications of AI/ML/DL in Traffic and Transportation Engineering.