Qianwen, Zhong. “Cosine Similarity Based Hierarchical Skeleton and Cross Indexing for Large Scale Image Retrieval Using Mapreduce Framework”. International Journal of Interactive Multimedia and Artificial Intelligence 8, no. 2 (June 1, 2023): 108–122. Accessed November 18, 2025. https://www.ijimai.org/index.php/ijimai/article/view/430.