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Orthogonal Matching Pursuit (OMP) has been a powerful method in sparse signal recovery and approximation. However, OMP suffers computational issues when the signal has a large number of non-zeros. This paper advances OMP and its extension…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Huiyuan Yu , Jia He , Maggie Cheng

Autoregressive models have recently shown great promise in visual generation by leveraging discrete token sequences akin to language modeling. However, existing approaches often suffer from inefficiency, either due to token-by-token…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Ruiqing Yang , Kaixin Zhang , Zheng Zhang , Shan You , Tao Huang

Abstract Meaning Representation (AMR) parsing aims to extract an abstract semantic graph from a given sentence. The sequence-to-sequence approaches, which linearize the semantic graph into a sequence of nodes and edges and generate the…

Computation and Language · Computer Science 2023-10-16 Bofei Gao , Liang Chen , Peiyi Wang , Zhifang Sui , Baobao Chang

Speech representation and modelling in high-dimensional spaces of acoustic waveforms, or a linear transformation thereof, is investigated with the aim of improving the robustness of automatic speech recognition to additive noise. The…

Computation and Language · Computer Science 2015-03-31 Matthew Ager , Zoran Cvetkovic , Peter Sollich

We introduce a new paradigm for AutoRegressive (AR) image generation, termed Set AutoRegressive Modeling (SAR). SAR generalizes the conventional AR to the next-set setting, i.e., splitting the sequence into arbitrary sets containing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Wenze Liu , Le Zhuo , Yi Xin , Sheng Xia , Peng Gao , Xiangyu Yue

Learning rich visual representations using contrastive self-supervised learning has been extremely successful. However, it is still a major question whether we could use a similar approach to learn superior auditory representations. In this…

Sound · Computer Science 2020-10-20 Haider Al-Tahan , Yalda Mohsenzadeh

Modern technological advances have enabled an unprecedented amount of structured data with complex temporal dependence, urging the need for new methods to efficiently model and forecast high-dimensional tensor-valued time series. This paper…

Methodology · Statistics 2023-09-28 Di Wang , Yao Zheng , Guodong Li

In this paper machine learning networks are explored for their use in restoring degraded and compressed speech audio. The project intent is to build a new trained model from voice data to learn features of compression artifacting distortion…

Sound · Computer Science 2021-09-08 Owen Casey , Rushit Dave , Naeem Seliya , Evelyn R Sowells Boone

Audio-Language Models (ALMs), trained on paired audio-text data, are designed to process, understand, and reason about audio-centric multimodal content. Unlike traditional supervised approaches that use predefined labels, ALMs leverage…

Sound · Computer Science 2026-03-13 Yi Su , Jisheng Bai , Qisheng Xu , Kele Xu , Yong Dou

In this paper I present a new approach for regression of time series using their own samples. This is a celebrated problem known as Auto-Regression. Dealing with outlier or missed samples in a time series makes the problem of estimation…

Artificial Intelligence · Computer Science 2015-08-19 Mohsen Joneidi

It is increasingly considered that human speech perception and production both rely on articulatory representations. In this paper, we investigate whether this type of representation could improve the performances of a deep generative model…

Sound · Computer Science 2021-04-08 Marc-Antoine Georges , Laurent Girin , Jean-Luc Schwartz , Thomas Hueber

Autoregressive (AR) models, the theoretical performance benchmark for learned lossless image compression, are often dismissed as impractical due to prohibitive computational cost. This work re-thinks this paradigm, introducing a framework…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Daxin Li , Yuanchao Bai , Kai Wang , Wenbo Zhao , Junjun Jiang , Xianming Liu

In ultrasound tomography, the speed of sound inside an object is estimated based on acoustic measurements carried out by sensors surrounding the object. An accurate forward model is a prominent factor for high-quality image reconstruction,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-24 Janne Koponen , Timo Lähivaara , Jari Kaipio , Marko Vauhkonen

Autoregressive (AR) time series models are widely used in parametric spectral estimation (SE), where the power spectral density (PSD) of the time series is approximated by that of the \emph{best-fit} AR model, which is available in closed…

Signal Processing · Electrical Eng. & Systems 2021-10-06 Alejandro Cuevas , Sebastián López , Danilo Mandic , Felipe Tobar

Autoregressive neural network models have been used successfully for sequence generation, feature extraction, and hypothesis scoring. This paper presents yet another use for these models: allocating more computation to more difficult…

Machine Learning · Computer Science 2020-06-03 Loren Lugosch , Derek Nowrouzezahrai , Brett H. Meyer

Deep reinforcement learning (DRL) is poised to revolutionise the field of artificial intelligence (AI) by endowing autonomous systems with high levels of understanding of the real world. Currently, deep learning (DL) is enabling DRL to…

While automated audio captioning (AAC) has made notable progress, traditional fully supervised AAC models still face two critical challenges: the need for expensive audio-text pair data for training and performance degradation when…

Sound · Computer Science 2025-01-07 Xiquan Li , Wenxi Chen , Ziyang Ma , Xuenan Xu , Yuzhe Liang , Zhisheng Zheng , Qiuqiang Kong , Xie Chen

We present LARP, a novel video tokenizer designed to overcome limitations in current video tokenization methods for autoregressive (AR) generative models. Unlike traditional patchwise tokenizers that directly encode local visual patches…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Hanyu Wang , Saksham Suri , Yixuan Ren , Hao Chen , Abhinav Shrivastava

We propose a generic confidence-based approximation that can be plugged in and simplify the auto-regressive generation process with a proved convergence. We first assume that the priors of future samples can be generated in an independently…

Machine Learning · Computer Science 2019-10-16 YoungJoon Yoo , Sanghyuk Chun , Sangdoo Yun , Jung-Woo Ha , Jaejun Yoo

In recent years we have witnessed a renewed interest in machine learning methodologies, especially for deep representation learning, that could overcome basic i.i.d. assumptions and tackle non-stationary environments subject to various…

Machine Learning · Computer Science 2023-01-09 Vincenzo Lomonaco , Lorenzo Pellegrini , Gabriele Graffieti , Davide Maltoni