M.Meghana, B.Bhagya Lakshmi 03 06 Crowd counting plays a crucial role in various applications such as urban planning event management and public safety Traditional methods for crowd counting often face challenges in accuracy and efficiency prompting a shift towards machine learning techniques This abstract provides a comprehensive overview of recent advancements in crowd counting using machine learning Machine learning models particularly convolutional neural networks CNNs and their variants have shown remarkable success in handling the complexities of crowd counting These models leverage their ability to automatically learn intricate patterns and features from images enabling more accurate and robust crowd estimation The utilization of deep learning architectures facilitates the extraction of hierarchical features allowing for better representation of crowded scenes This review discusses the diverse approaches employed in crowd counting encompassing both supervised and unsupervised learning paradigms Supervised methods rely on annotated datasets for model training while unsupervised methods explore novel ways to estimate crowd density without labeled data Additionally semisupervised techniques leverage a combination of labeled and unlabeled data to enhance model performance The challenges associated with crowd counting such as scale variations occlusions and diverse crowd behaviors are addressed in the context of machine learning Various data augmentation strategies regularization techniques and attention mechanisms are explored to improve model generalization and robustness Transfer learning is also discussed as a means to adapt pretrained models to new crowd counting scenarios reducing the need for large annotated datasets Furthermore the review highlights the integration of crowd counting models with realworld applications including smart cities transportation systems and public safety The ethical considerations related to crowd surveillance and privacy are discussed emphasizing the importance of responsible deployment of machine learning in crowd counting applications In conclusion this abstract provides a comprehensive overview of the stateoftheart in crowd counting using machine learning emphasizing the advancements challenges and practical applications The integration of machine learning techniques into crowd counting holds great promise for addressing the complexities of realworld scenarios and advancing the field towards more accurate and efficient crowd estimation systems Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026