iFetch: Multimodal Conversational Agents for the Online Fashion Marketplace. - Ricardo Gamelas Sousa; Pedro Miguel Ferreira; Pedro Moreira Costa; Pedro Azevedo; João Paulo Costeira; Carlos Santiago; João Magalhães; David Semedo; Rafael Ferreira 003; Alexander I. Rudnicky; Alexander G. Hauptmann (MuCAI @ ACM Multimedia, 2021)