The 4th International Conference on Machine Learning & Applications (CMLA 2022) will be held in Copenhagen, Denmark from June 25-26, 2022. The conference aims to provide a forum for researchers and practitioners to share knowledge and results on machine learning and applications. Authors are invited to submit papers on topics related to machine learning algorithms, deep learning, neural networks, reinforcement learning, and more by April 16, 2022. Selected papers will be published in the conference proceedings and may also be published in related journals. Important dates include the submission deadline of April 16th and author notification date of May 12th.