HieraFocus: adaptive transformer-based recognition of complex graphic patterns in medical tumor imaging. - Danylo Borovyk; Khadija Alhumaid; Denys Marichev; Serhii Leoshchenko; Andrii Oliinyk; Jamil Abedalrahim Jamil Alsayaydeh (J. King Saud Univ. Comput. Inf. Sci., 2026)