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Vector quantization is common in deep models, yet its hard assignments block gradients and hinder end-to-end training. We propose DiVeQ, which treats quantization as adding an error vector that mimics the quantization distortion, keeping…

Machine Learning · Computer Science 2026-05-27 Mohammad Hassan Vali , Tom Bäckström , Arno Solin

Building on our recent research on neural heuristic quantization systems, results on learning quantized motions and resilience to channel dropouts are reported. We propose a general emulation problem consistent with the neuromimetic…

Systems and Control · Electrical Eng. & Systems 2023-05-08 Zexin Sun , John Baillieul

Quantization is an effective method for reducing memory footprint and inference time of Neural Networks, e.g., for efficient inference in the cloud, especially at the edge. However, ultra low precision quantization could lead to significant…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Zhen Dong , Zhewei Yao , Yaohui Cai , Daiyaan Arfeen , Amir Gholami , Michael W. Mahoney , Kurt Keutzer

Image tokenizers play a critical role in shaping the performance of subsequent generative models. Since the introduction of VQ-GAN, discrete image tokenization has undergone remarkable advancements. Improvements in architecture,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Xiang Li , Kai Qiu , Hao Chen , Jason Kuen , Jiuxiang Gu , Jindong Wang , Zhe Lin , Bhiksha Raj

Multimodal large language models (MLLMs) have recently demonstrated strong capabilities in understanding and generating responses from diverse visual inputs, including high-resolution images and long video sequences. As these models scale…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Junwan Kim , Hyunkyung Bae

In this work, we design and implement VQ-LLM, an efficient fused Vector Quantization (VQ) kernel generation framework. We first introduce a software abstraction called codebook cache to optimize codebook access efficiency and support the…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-01 Zihan Liu , Xinhao Luo , Junxian Guo , Wentao Ni , Yangjie Zhou , Yue Guan , Cong Guo , Weihao Cui , Yu Feng , Minyi Guo , Yuhao Zhu , Minjia Zhang , Jingwen Leng , Chen Jin

We present the vector quantized diffusion (VQ-Diffusion) model for text-to-image generation. This method is based on a vector quantized variational autoencoder (VQ-VAE) whose latent space is modeled by a conditional variant of the recently…

Computer Vision and Pattern Recognition · Computer Science 2022-03-04 Shuyang Gu , Dong Chen , Jianmin Bao , Fang Wen , Bo Zhang , Dongdong Chen , Lu Yuan , Baining Guo

Large language models (LLMs) can now handle longer sequences of tokens, enabling complex tasks like book understanding and generating lengthy novels. However, the key-value (KV) cache required for LLMs consumes substantial memory as context…

Machine Learning · Computer Science 2024-11-13 Haojie Duanmu , Zhihang Yuan , Xiuhong Li , Jiangfei Duan , Xingcheng Zhang , Dahua Lin

Multi-source user representation learning plays a critical role in enabling personalized services on web platforms (e.g., Alipay). While prior works have adopted late-fusion strategies to combine heterogeneous data sources, they suffer from…

The emergence of the global COVID-19 pandemic poses new challenges for biometrics. Not only are contactless biometric identification options becoming more important, but face recognition has also recently been confronted with the frequent…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Marco Huber , Fadi Boutros , Florian Kirchbuchner , Naser Damer

Retrieving the most similar vector embeddings to a given query among a massive collection of vectors has long been a key component of countless real-world applications. The recently introduced Retrieval-Augmented Generation is one of the…

Machine Learning · Computer Science 2024-02-06 Cecilia Aguerrebere , Mark Hildebrand , Ishwar Singh Bhati , Theodore Willke , Mariano Tepper

Video tasks are compute-heavy and thus pose a challenge when deploying in real-time applications, particularly for tasks that require state-of-the-art Vision Transformers (ViTs). Several research efforts have tried to address this challenge…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Sreetama Sarkar , Gourav Datta , Souvik Kundu , Kai Zheng , Chirayata Bhattacharyya , Peter A. Beerel

Foundation models in language and vision benefit from a unified discrete token interface that converts raw inputs into sequences for scalable pre-training and inference. For graphs, an effective tokenizer should yield reusable discrete…

Information Retrieval · Computer Science 2026-05-28 Yang Xiang , Li Fan , Chenke Yin , Lutz Oettershagen , Chengtao Ji

In this paper, we reveal that artificial neural network (ANN) assisted multiple-input multiple-output (MIMO) signal detection can be modeled as ANN-assisted lossy vector quantization (VQ), named MIMO-VQ, which is basically a joint…

Signal Processing · Electrical Eng. & Systems 2020-04-02 Songyan Xue , Yi Ma , Na Yi , Terence E. Dodgson

In this paper, we propose a generalizable mixed-precision quantization (GMPQ) method for efficient inference. Conventional methods require the consistency of datasets for bitwidth search and model deployment to guarantee the policy…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Ziwei Wang , Han Xiao , Jiwen Lu , Jie Zhou

Post-training quantization (PTQ) has emerged as an effective technique for compressing large models and accelerating inference without retraining. While PTQ has been extensively studied in large language models (LLMs), its application to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yufei Xue , Yushi Huang , Jiawei Shao , Lunjie Zhu , Chi Zhang , Xuelong Li , Jun Zhang

Whilst diffusion probabilistic models can generate high quality image content, key limitations remain in terms of both generating high-resolution imagery and their associated high computational requirements. Recent Vector-Quantized image…

Computer Vision and Pattern Recognition · Computer Science 2021-11-25 Sam Bond-Taylor , Peter Hessey , Hiroshi Sasaki , Toby P. Breckon , Chris G. Willcocks

Masked Image Modeling (MIM) has garnered significant attention in self-supervised learning, thanks to its impressive capacity to learn scalable visual representations tailored for downstream tasks. However, images inherently contain…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Wenzhao Xiang , Chang Liu , Hongyang Yu , Xilin Chen

Learning compact and meaningful latent space representations has been shown to be very useful in generative modeling tasks for visual data. One particular example is applying Vector Quantization (VQ) in variational autoencoders (VQ-VAEs,…

Machine Learning · Computer Science 2024-09-18 Xin Li , Anand Sarwate

Long Chain-of-Thought (CoT) reasoning has significantly advanced the capabilities of Large Language Models (LLMs), but this progress is accompanied by substantial memory and latency overhead from the extensive Key-Value (KV) cache. Although…

Machine Learning · Computer Science 2025-12-23 Tao Zhang , Ziqian Zeng , Hao Peng , Huiping Zhuang , Cen Chen
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