The 4th International Conference on Signal Processing and Machine Learning (SIGML 2023) will take place February 18-19, 2023 in Dubai, UAE. The conference aims to provide a forum for researchers and practitioners to share knowledge and results in signal processing and machine learning. Authors are invited to submit original research papers by December 17, 2022 on topics including digital signal processing, image processing, computer vision, machine learning applications, and deep learning. Selected papers will be published in the conference proceedings and special issues of related journals.