iFLEX: A Fully Open-Source, High-Density Field-Programmable Gate Array (FPGA)-Based Hardware Co-Processor for Vector Similarity Searching. - Ludovico Minati; Vardan Movsisyan; Matthew McCormick; Khachatur Gyozalyan; Tigran Papazyan; Hrach Makaryan; Stefano Aldrigo; Taron Harutyunyan; Hayk Ghaltaghchyan; Chris Mccormick; Mick Fandrich (IEEE Access, 2019)