José D. Martín enjoyed a research stay at the Department of Applied Mathematics of the Liverpool John Moores University (LJMU), UK, working with the group led by Professor Paulo Lisboa. Jose was granted by the Spanish Ministry of Education, Science and Sport within the Program for Senior Researchers; he stayed from May to September working on different issues related to Quantum Machine Learning, with special emphasis on Quantum Clustering, where relevant progresses have been made, enhancing the original formulation especially in terms of dealing with non-spherical structures and fluctuations in the density of data points, thus finding a natural number of clusters.
