NLIP-Essex-ITESM at ImageCLEFcaption 2021 task : Deep Learning-based Information Retrieval and Multi-label Classification towards improving Medical Image Understanding. - Janadhip Jacutprakart; Francisco Parrilla Andrade; Rodolfo Cuan; Arely Aceves Compean; Giorgos Papanastasiou; Alba Garcia Seco de Herrera (CLEF (Working Notes), 2021)