Shen, Chao, Tao Li, and Chris Ding. “Integrating Clustering and Multi-Document Summarization by Bi-Mixture Probabilistic Latent Semantic Analysis (PLSA) With Sentence Bases”. Proceedings of the AAAI Conference on Artificial Intelligence 25, no. 1 (August 4, 2011): 914-920. Accessed April 25, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/7977.