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Time series generation (TSG) studies have mainly focused on the use of Generative Adversarial Networks (GANs) combined with recurrent neural network (RNN) variants. However, the fundamental limitations and challenges of training GANs still…

Machine Learning · Computer Science 2023-04-04 Daesoo Lee , Sara Malacarne , Erlend Aune

Effectively handling temporal redundancy remains a key challenge in learning video models. Prevailing approaches often treat each set of frames independently, failing to effectively capture the temporal dependencies and redundancies…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Xiang Fan , Xiaohang Sun , Kushan Thakkar , Zhu Liu , Vimal Bhat , Ranjay Krishna , Xiang Hao

Generation of photo-realistic images, semantic editing and representation learning are a few of many potential applications of high resolution generative models. Recent progress in GANs have established them as an excellent choice for such…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Partha Ghosh , Dominik Zietlow , Michael J. Black , Larry S. Davis , Xiaochen Hu

Deep generative models provide powerful tools for distributions over complicated manifolds, such as those of natural images. But many of these methods, including generative adversarial networks (GANs), can be difficult to train, in part…

Machine Learning · Statistics 2017-11-08 Akash Srivastava , Lazar Valkov , Chris Russell , Michael U. Gutmann , Charles Sutton

Embedding-based retrieval methods construct vector indices to search for document representations that are most similar to the query representations. They are widely used in document retrieval due to low latency and decent recall…

Residual Networks (ResNets) have become state-of-the-art models in deep learning and several theoretical studies have been devoted to understanding why ResNet works so well. One attractive viewpoint on ResNet is that it is optimizing the…

Machine Learning · Statistics 2018-07-10 Atsushi Nitanda , Taiji Suzuki

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

We present Channel-wise Vector Quantization (CVQ), a novel image tokenization paradigm that replaces patch-wise tokens with channel-wise tokens. Unlike conventional vector quantization, which assigns a discrete token to each patch feature…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Wei Song , Tianhang Wang , Yitong Chen , Tong Zhang , Zuxuan Wu , Ming Li , Jiaqi Wang , Kaicheng Yu

Similar to natural language models, pre-trained genome language models are proposed to capture the underlying intricacies within genomes with unsupervised sequence modeling. They have become essential tools for researchers and practitioners…

Genomics · Quantitative Biology 2024-06-04 Siyuan Li , Zedong Wang , Zicheng Liu , Di Wu , Cheng Tan , Jiangbin Zheng , Yufei Huang , Stan Z. Li

Product quantisation (PQ) is a classical method for scalable vector encoding, yet it has seen limited usage for latent representations in high-fidelity image generation. In this work, we introduce PQGAN, a quantised image autoencoder that…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Denis Zavadski , Nikita Philip Tatsch , Carsten Rother

Deep learning, especially convolutional neural networks, has triggered accelerated advancements in computer vision, bringing changes into our daily practice. Furthermore, the standardized deep learning modules (also known as backbone…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Hongzhi Zhu , Robert Rohling , Septimiu Salcudean

As a new way of training generative models, Generative Adversarial Nets (GAN) that uses a discriminative model to guide the training of the generative model has enjoyed considerable success in generating real-valued data. However, it has…

Machine Learning · Computer Science 2017-08-28 Lantao Yu , Weinan Zhang , Jun Wang , Yong Yu

This paper proposes a Robust and Efficient Memory Network, referred to as REMN, for studying semi-supervised video object segmentation (VOS). Memory-based methods have recently achieved outstanding VOS performance by performing non-local…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Yadang Chen , Dingwei Zhang , Zhi-xin Yang , Enhua Wu

Representing documents into high dimensional embedding space while preserving the structural similarity between document sources has been an ultimate goal for many works on text representation learning. Current embedding models, however,…

Computation and Language · Computer Science 2023-10-31 Iftitahu Ni'mah , Samaneh Khoshrou , Vlado Menkovski , Mykola Pechenizkiy

Quantizing images into discrete representations has been a fundamental problem in unified generative modeling. Predominant approaches learn the discrete representation either in a deterministic manner by selecting the best-matching token or…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Jiahui Zhang , Fangneng Zhan , Christian Theobalt , Shijian Lu

Sparse-view computed tomography (CT) is a practical solution to reduce radiation dose, but the resulting ill-posed inverse problem poses significant challenges for accurate image reconstruction. Although deep learning and diffusion-based…

Image and Video Processing · Electrical Eng. & Systems 2025-06-10 Changsheng Fang , Yongtong Liu , Bahareh Morovati , Shuo Han , Yu Shi , Li Zhou , Shuyi Fan , Hengyong Yu

Despite the remarkable generation quality of video Diffusion Transformer (DiT) models, their practical deployment is severely hindered by extensive computational requirements. This inefficiency stems from two key challenges: the quadratic…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yuechen Zhang , Jinbo Xing , Bin Xia , Shaoteng Liu , Bohao Peng , Xin Tao , Pengfei Wan , Eric Lo , Jiaya Jia

Autoregressive and diffusion models drive the recent breakthroughs on text-to-image generation. Despite their huge success of generating high-realistic images, a common shortcoming of these models is their high inference latency -…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Zhangyin Feng , Runyi Hu , Liangxin Liu , Fan Zhang , Duyu Tang , Yong Dai , Xiaocheng Feng , Jiwei Li , Bing Qin , Shuming Shi

Generative Adversarial Networks (GANs) have seen steep ascension to the peak of ML research zeitgeist in recent years. Mostly catalyzed by its success in the domain of image generation, the technique has seen wide range of adoption in a…

Machine Learning · Statistics 2018-05-09 Aparna Balagopalan , Satya Gorti , Mathieu Ravaut , Raeid Saqur

Retrieval-augmented generation (RAG) has become a dominant paradigm for grounding large language models (LLMs) with external evidence in knowledge-intensive question answering. A core design choice is how to fuse retrieved samples into the…

Computation and Language · Computer Science 2026-02-16 Yixin Chen , Ying Xiong , Shangyu Wu , Xiangrui Ke , Nan Guan , Chun Jason Xue