Product Quantization
Product quantization is a model compression technique that reduces the memory footprint and computational cost of deep learning models by representing data using lower-bit representations. Current research focuses on improving the accuracy of quantized models, particularly for large language models and computer vision tasks, through techniques like quantization-aware training, optimized quantization schemes (e.g., mixed-precision quantization, product quantization with Gumbel), and novel loss functions that address the inharmony between different model tasks. These advancements are significant for deploying large models on resource-constrained devices and accelerating inference speed in various applications, including object detection, natural language processing, and approximate nearest neighbor search.