Evaluating the Effectiveness of Unsupervised and Supervised Techniques for Identifying Deteriorations on Cultural Heritage Monuments Using Hyper-spectral Imagery. - Nikolaos Chrysogonos; Kyriakos Lampropoulos; Ioannis N. Tzortzis; Charalampos Zafeiropoulos; Anastasios Doulamis; Nikolaos Doulamis (TMM_CH, 2023)