Extracting topics is a good unsupervised data-mining technique to discover the underlying relationships between texts. There are many different approaches with the most popular probably being LDA but…
J. Zevering, D. Borrmann, A. Bredenbeck, и A. Nüchter. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '22), стр. 5656--5663. Kyoto, Japan, (октября 2022)