Alibaba Cloud Developer

Aug 22, 2019 · Artificial Intelligence

How Alibaba Engineers Shrank Image Features from 120KB to 13KB and Cut Euclidean Distance to 9µs

This article details how Alibaba's engineers reduced per‑image feature size from 120 KB to an average of 13 KB and accelerated Euclidean distance calculations from 50 µs to 9 µs through bitmap, offset, and duplicate‑value compression techniques, enabling efficient large‑scale image retrieval.